Bill saw them first as they passed the airport security gate at Logan.

"Grandpa!" Tara squealed as she pranced across the last twenty feet that separated them. Bill got down on one knee to be at her level, and she beamed at him as she encircled him with her small arms and gave a big squeeze. She was four, with straight blond hair that reached to her shoulders and framed her perfectly symmetrical face. Her big blue eyes were almost startling.

Her six-year-old sister Kira considered herself too old for squealing and running, though one suspected that she would have come bounding just as fast if she had followed her heart. Her smile was just as big as her sister's. Her wavy light brown hair reached to the middle of her back, and her face was just as adorable as Tara's, her big gray eyes fixing him with love.

Bill rose as their mother Alison approached, and she gave him a big hug too. Alison was pretty, though her daughters had noticeably surpassed her in the looks department. Alison was Bill's daughter, and he had been there for her throughout her childhood. She had naturally pulled away to live her own life as she moved into college and beyond. Now she needed him again, and at age 31 she appreciated him as never before.

Alison was coming out of a rough spot. Her husband Kyle had seemed like a good man when they married, and things had gone OK after Kira's birth. But the marriage had taken a sharp turn for the worse after Tara was born. When she was two months old he had lost his job and had had trouble finding a new one. Hanging around the house aimlessly, he lost his temper with the girls. There had not been any physical abuse, but his flare-ups frightened the girls. He found excuses to be away from the house, and after three years of tension and absences, he had moved in with another woman -- a woman without children.

Kyle had left five months before. The divorce was moving smoothly through the courts. There were no conflicts about child custody, as Kyle seemed to want nothing to do with his daughters. Alison would get very little in child support because Kyle had been out of work for so long.

Bill was especially delighted to see the three of them because he had suffered a major loss himself. His wife Anne had succumbed to a fast-moving cancer a year earlier. His son Matt was doing well enough, but was lost in his own life in Europe and had little interest in his sister or father.

Anne's death weighed on Alison as much as on Bill, though it had had fewer day-to-day consequences. Now Bill was Alison's only family support.

He was delighted to be able to help out. He had loved Alison deeply when she was a child, and like any involved parent had felt that tender ache as she had moved out on her own. Visits had become much less frequent after Kyle and Alison moved to LA. He would have much preferred that she stay out on her own in a stable, happy marriage. Anne's death had not changed that sentiment, but it had shaken it. Bill was lonely.

The prospect of having Allie nearby again filled him with joy. She needed a place to recuperate and heal, and her daddy was going to help. She had been enthusiastic about his plan to buy a two-family house. Bill now occupied the ground floor, while Alison and the girls would live upstairs. Each could have their privacy but they could also visit easily.

---------

Bill was retired, and Alison knew he couldn't support her indefinitely, so she promptly set about retooling herself for a career that paid decently. She had majored in dance, and taught a few classes before Kira was born. Bill always retained his cautious view that it was wise to have a way to earn a good living, yet he had approved of her decision to major in dance. She loved it so much! Now economic reality had set in, and as he expected Alison was tackling the problem head-on.

Two weeks after their arrival, she had found work as a software tester and was taking courses at Harvard Extension as a start to earning a Master's in computer science.

With Alison off working and attending school at night, Bill shouldered a major role in caring for the girls. Alison was able to get them off to their respective schools in the morning, but Bill was the one to pick them up, prepare afternoon snack, and supervise homework and dinner. Many evenings he gave them their baths and put them to bed. He also read stories, played games, and escorted the girls to playgrounds. There was nothing he would rather have been doing.

Tara and Kira were not angels. They had their share of squabbles, bad moods, and even the occasional temper tantrum. The move to Boston was a disruption to them. They missed their daddy, but his absence removed a great deal of stress from their lives. But on the whole they were both easy children and got along well with each other.

Bill enjoyed their youthful exuberance, their sheer joy in the simple pleasures of the slide and swing, running, make-believe, singing, hearing stories...

The internet absorbed a surprising amount of their time, from Bill's perspective. The idea of a home computer was completely unknown in Bill's childhood, and even in Alison's it played a much smaller role. As Bill looked over their shoulders, he decided that it was mostly good. Games engaged hand-eye coordination, critical thinking and problem solving. The amount of fascinating information constantly coming off the internet was astounding. And Kira was just beginning to chat with friends.

Bill liked everything about his grand-daughters, but he especially adored their perfect young bodies. At bath-time the girls were on display, unclothed and unashamed. Bill felt privileged to be there, to be trusted with their nakedness. He loved drying their hair and patting with a towel every inch of skin. Even their labia needed a gentle pat. Very soon they would want privacy, and the labia and what they protected would remain hidden from everyone. Many years hence they would choose to share those parts of themselves with a lucky boy.

The girls also had that subtle smell that defines childhood, the smell parents love so much. Bill would unashamedly bury his nose in their hair and take a deep sniff.

He loved nothing better than to feel Kira and Tara snuggled up beside him as he read a bed-time story.

Alison had a tradition with her girls of kissing them full on the lips. That hadn't been in the repertoire of parent/child affection when he was raising Alison, but times change. The girls eagerly kissed Bill as well and he quickly returned the kisses with enthusiasm.

Bill loved his grand-daughters as children, and he realized he also felt a special attachment to their girlhood, their femininity. He found their long hair especially attractive, and he stroked or brushed it for as long as they would allow.

He felt a little thrill at being able to see and pat their bare chests at bath-time. Their chests of course were in no way different from a little boy's at that age, but the unique feminine growth they would undergo in the future made them special in the present. The girls' dresses were often loose, of course, and when they bent over he would sometimes get a view of their bare chests and would feel a little hint of excitement.

The labia were the one visible part that defined them as girls. He saw that part of them at bath-time, of course, but in a way he found them more intriguing when they were hidden. When he saw the girls in panties he was clearly aware of what was hidden within. When they wore dresses he found himself thinking about the panties up underneath. Being young girls their panties did end up showing pretty often.

It was natural for him to feel affection for his grandchildren, to appreciate their every gesture and quirk, the hugs and kisses -- and the pouts too. It was natural for him to appreciate the perfection of their bodies -- the simultaneous softness and resilient strength. But he wondered if there was something in his reaction to their femininity that went beyond parental feeling. Although his memories of raising Matt and Allie were murky to him, he did not recall this same kind of fascination with Allie's body or femininity.

---------

Bill had routinely pleasured himself throughout life whenever there wasn't a woman to share pleasure with, and this pattern had continued after Anne died. Images of Anne came to him as he masturbated, and he was only briefly ashamed to realize he was imagining her as she had been in her 20s, not as she had been in later years. Fantasies of young women and teen-aged girls also came to him and didn't trouble him especially.

The pattern continued after Alison and her girls arrived. Yet as he lay in his bed at night, his hand functioning as ersatz vagina, occasionally thoughts of Tara's panties came into his mind. He quickly pulled his fantasies back to panties of grown women, panties on big hips, panties covering pubic hair. He imagined the panties sliding down, and the mature woman's labia parting to reveal the vagina that would eagerly welcome him within. Yet intruding into his thoughts unwanted were images of Kira's legs spread, delicate hairless labia held open.

Bill tried to make sense of these creeping feelings. Kira and Tara were the only females whose bodies he was seeing and touching daily. The labia on display at bath-time and the panties he saw peeking into view below their dresses were the only labia and panties he saw these days. Perhaps they reminded him of the mature women he naturally felt attracted to.

Yet within a few months of Alison's arrival from the West, he found his cock swelling when either girl sat in his lap, though not into a full-blown erection. It was very noticeable to him, though he doubted the girls suspected anything unusual.

As Tara sat on his lap, he sometimes wrapped his arms around her. He let his hand linger on her chest, and even found himself gently stroking back and forth. She wouldn't think it unusual. He knew not to do this with Kira, who had reported to him among all the other news of her day a session on awareness of stranger touch.

Another realization slowly crept in. He didn't feel satisfied with some surreptitious stroking of Tara's chest. He had a yearning to touch both girls all over. He imagined cupping Kira's labia through her panties, then imagined a gentle stroking motion. He could and sometimes did lick the girls' necks as part of cuddly play. But he wanted to lick the rest of their bodies too, especially the forbidden places.

One day Kira sat on his lap, wearing a simple blue dress. His hand rested on her knee, and he felt himself sliding it up her inner thigh -- slowly, just an inch. It was hard to keep from sliding it farther. Just another inch? He suddenly noticed Kira freeze and her attention shift to his hand. It had occurred to her to wonder if this was inappropriate touch. He casually removed his hand, but he felt shaken.

That night as he masturbated, the only image in his mind was Kira, legs spread wide, with his throbbing penis approaching her labia, sliding inside, and in the magic of fantasy, gliding smoothly into her impossibly small vagina. As his semen spurted onto his chest, he saw only the image of sweet Kira with his penis buried between her legs. Worse, his orgasm featured a distinctive new overtone of pleasure he had never felt while imagining or even actually making love to a real woman.

---------

"So how was school this evening?" Bill asked an obviously tired Alison as she sat slumped at the kitchen table eating some of the leftover spaghetti.

"Oh, about the same. I think I'll do OK in data structures. I was worried the first couple weeks, but now I think I can handle it.

"How were the girls today?"

"Fine. Well, come to think of it, Kira refused to stay in bed even after a glass of water and an extra story. She wanted to snuggle but I told her she was a big girl now. I told her there would be no stories tomorrow if she didn't stay in her room. Then she stayed, but I could hear her crying for a while."

"Why not let her snuggle?"

"Well, she's getting pretty old for that, don't you think?"

"No, not really."

"Well, I do. I'm also thinking she's old enough to take her baths by herself. What do you think?"

"I'm still worried about her slipping in there and drowning. Did you read that story from South Carolina a few months back? A girl fell, hit her head, and drowned. Just eight years old!"

---------

Bill found it hard to be with the girls now. He loved them as before, but he also loved them in ways he shouldn't. He needed to pull back and avoid the situations that fed his fantasies. At bath time he brought a magazine and looked at it studiously. He had convinced Kira she could dry herself. He gritted his teeth as he dried Tara.

He didn't allow them to sit on his lap any more. He tried not to look at them and really see, because that stoked his yearning. He found himself doing the minimum to care for them, but no more. If he managed not to take in the magnificence of his young granddaughters, he could keep at bay his intense desires, desires he must not give in to.

---------

"Dad, what's going on?"

Alison had waited until 10pm on Sunday to confront Bill, first making sure both girls were soundly asleep.

"Nothing, why do you ask?"

"The girls say you're no fun any more. You don't play with them or read to them or let them snuggle. It's been a week now."

"You know, I'm pushing 60, slowing down. Maybe I'm not up for being a full-time parent any more. I think I could afford to bring in a sitter to help sometimes."

"I don't believe you. I don't believe you are slowing down. You love the girls, don't you?"

"Of course I do. They're wonderful. It's been so great to have all of you living right upstairs."

"Then why don't you show them you love them like you used to?"

"I love the girls, Alison." Then Bill blurted it out without thinking: "I love them too much."

"Oh," said Alison, freezing.

He tried to backtrack. "I mean, I raised you and Matt, and it was wonderful. Watching you grow up. But I always missed the younger versions of you. And I can see Tara and Kira getting older right before my eyes. I'm already missing the Tara who ran across the airport to give me a big hug. She wouldn't do that any more. I don't know if I can stand having them grow up on me too. So maybe I'm withdrawing so I don't get hurt."

That wasn't a bad effort, Bill thought.

She saw right through it. "You'll tell me the truth, won't you dad?"

"Of course," Bill said. He wasn't entirely sure he would, depending on how personal the question, but he knew he wouldn't lie about any of the stuff that mattered most.

"Have you abused them?"

"No!" he said, looking her squarely in the eye. She relaxed visibly.

"But..." Bill realized that if he finished this sentence, there was no hope of covering up his forbidden desires any more. His voice dropped to a whisper. "It's so tempting, though, and I'm afraid I might. I'm so sorry, Allie. I can afford childcare, at least for a little while. I'll find another place to live. I'll still do my best to support you..."

Allie held up her hand to stop him. "Dad, don't panic. Give me a minute." Allie looked stunned. Bill stewed in self-loathing.

"Did you ever abuse me, Dad?"

"No! I never even felt the urge."

"I didn't think so... Thank you."

"Well, as I said, it was nothing."

"Why can't you be the same with them?"

"I don't know, Allie, it's just different. I mean, so far I do act the same, but ... there is this fire burning inside me."

"Why, dad?"

"I don't know, honey. Why do you feel attracted to men?"

Allie looked thoughtful, then shrugged before straightening up. "Can you keep on for the next few days as we have been? Pick them up from school? Get them snack? Dinner?"

"Sure, Allie." Bill thought that would work OK.

It was still hard seeing their adorable young bodies. It helped a little that something would change in a few days. It also helped that he had told Allie of his perversion, and she was still speaking to him.

---------

It was Monday evening, and Allie had invited Bill up to talk in her living room.

"Let's review what's happened. You didn't do anything, right?"

"Right."

"And when you were afraid you would, you changed things so you wouldn't be tempted."

"Yeah, I tried to," Bill sighed.

"Thanks, dad. You're a good man. You were tempted, and you made sure you didn't give in."

Bill hadn't thought about it that way. He shouldn't have those feelings at all, and not acting on them was the least a civilized person could do.

Then Allie started tearing up. "You've been a wonderful dad to me, when we were growing up, and since then too. A real rock in my life. A rock who loves me." She smiled at the metaphor gone awry.

"And now you tell me you've got these feelings that are disgusting. At least that's what the whole world says. And the world thinks you're a disgusting person just for having them."

Bill hung his head in shame.

"But I know you're not disgusting. I know you're a good man.

"Look at me, dad."

Bill raised his head.

Allie looked him in the eye. "Do you want to hurt them?"

"No!"

"I ... I knew that, I just had to ask.

"So if you did something and they didn't like it, you'd stop, right?"

"Yes, I'd stop. Look, I won't even start. But it tears me apart inside hugging and snuggling with them all the time. Imagine sleeping next to Ethan Johnson naked, every night."

Allie smiled. She had had a massive crush on Ethan when he was a senior and she was in ninth grade. Bill and her mother had refused to let her date him, and it had led to many tears and a few loud fights.

"I'm sorry, Allie. I guess I'm a sick man." His eyes moistened.

Allie hesitated only a moment. "Dad, you've been there for me all my life. Now I'm going to be here for you, OK?"

"That's nice, Allie. But how?"

"Why don't you tell me what you'd like to do with my daughters."

"Allie!"

"I'm going to listen, and I trust that whatever feelings you describe are fine feelings. I don't think the desires are disgusting. As long as you don't want to hurt them."

"It's not that simple, Allie. And they're private!"

"Hmmmm. I'll tell you a few secrets about Kyle and me."

"You don't have to..."

"No, I want to. Will you be a good father and listen?" She gave an impish grin.

She took Bill's hesitant silence as consent.

"He liked to do me in the butt. At first we fought about it because it seemed gross to me, but I tried to keep an open mind, and we did it, and it was so naughty it felt great."

Bill wasn't sure he wanted to hear this, but he tried to be a modern man, to go along with his daughter's way.

"He got some porn movies, and I was disgusted when I found out. But I agreed to watch them, and they were really hot. I made him get rid of the ones where the women were being degraded, but the others seemed OK. They were actors and actresses, putting on a show about two people having a lot of fun doing one of the things people love best. It was a big turn-on for me!"

Bill wasn't sure where this disclosure was leading. Surely there were limits? "Why are you telling me this? So, was Kyle's dick big? Did you have lots of orgasms? Were they big ones? When did you first lose your virginity? Did it hurt bad? How many guys have you done it with? Huh?"

"Kyle's dick was pretty average, I'd say. Not circumcised," she said with a smile.

"That's enough, Allie! I wasn't serious."

"I've done it with eight guys. The first was Nathan. He was a real jerk. Shoved it in when I wasn't really ready and came a few seconds later. It didn't hurt as much as I thought, though. On our next date he raped me, at least that's what we'd say now. I wanted him to get me hotter before I let him in, but he wouldn't wait. Just had to get that dick in."

Bill was mumbling, "Allie, Allie," and covering his ears, but he wasn't mumbling very loud and wasn't covering his ears very tightly. It was fascinating.

"Then Byron. He was a lot kinder, and tried to do what would work for me, and I enjoyed myself with him. But he wasn't all that sexy frankly."

"Then there was Mr. Wright, my Religion professor in college."

Bill looked up at that. "You did it with a professor?"

"Yes, dad," Allie looked down. "We had an affair for two months or so. He was a great lover. I was coming all the time with him. Massive orgasms, usually two or three."

Bill held up his hand. "OK, Allie, that's enough."

"So now, dad, what do you want to do with little Tara and Kira?"

"Oh, Allie..."

"Please, daddy," she said, making big sad puppy eyes. That had usually gotten her what she wanted when she was younger.

Allie had told him some very personal things. It would be a relief to share some of the feelings that he held inside. Bill started speaking, head down.

"I want to run my hands all over their chests."

"Mmmm! Sounds like fun."

"I want to slide my hands all up and down the inside of their thighs, especially when they have dresses on."

Allie shifted uncomfortably in her seat.

"See, you don't want to hear about it, really!"

Allie paused and got slightly pink, but continued. "No, dad," she said softly. It ... Hearing the fantasy turns me on. See, I'm kind of perverted too."

Bill managed a hint of a smile as he glanced up at her, then continued. "I want to kiss them, not just once, but for hours, like grown-ups, lips all over each other. I want to put my hands on the crotch of their panties and gently rub, rub, rub." Bill made the motion with his fingers in the air.

Confessing these fantasies had given him a rock-solid erection.

It was hard to read Allie's expression.

He decided to press on and let his fantasies go wild.

"I want to pull the panties down, and spread their legs, and lick the entire area, gently, maybe poke my tongue into their little vaginas. There, how's that?"

"OK, dad," Allie said, smiling. "Let me think."

"Heard enough sick fantasies?"

"No, dad, that's not it."

"What, then?"

"You know, when they teach girls all about stranger touch, there are a couple scenarios. One is in case men force themselves on them. But there is another one. The thing is, the girls might like it."

Bill didn't absorb that at the time, and instead changed the subject. "Did you do it with any other professors?"

"No, dad." She rattled off the names of her other lovers, one of whom Bill had met briefly, the others just other men she had met at college.

"But back to the other thing, dad, I listened to all your fantasies. And I'm not disgusted by any of them."

Bill wasn't sure what to say. "That's nice," he mumbled.

---------

Bill sat in his living room chair in a daze after Allie left, reviewing what had happened in the past couple days. Had the conversations really gone as he thought they had? Allie had probed for why he wasn't being affectionate with her daughters. He had stupidly let slip that he loved them too much, and Allie had figured out that meant sexually. She had not looked at him like he was a monster. Then she had made a point of trying to make him feel OK with his fantasies. She had told him about her own sex life, and encouraged by her sharing, he had shared too. He had spoken of doing all those nasty things he wanted to do with her daughters, and she hadn't run screaming. She had said the fantasies weren't gross, and she had even got turned on a little. One layer of Bill's shame dropped away. He had an image of Kira pulling her panties down and smiling at him.

He hurried to his bathroom and pulled down his own pants. Facing the sink he caught sight of his bulging manhood in the mirror. He started stroking, rocking his hips forward in a fast fucking motion as his hand pumped up and down. It took less than a minute. He fantasized about Kira with her panties down, pussy lips spread wide. But this time in his fantasy she smiled at him, and he felt an extra layer of pleasure as jets of milky cum spurted onto the mirror and into the sink.

As he was catching his breath and cleaning up, Allie's words came back to him. Had she said that one scenario for stranger touch is that the girls might enjoy it? Yes, she had. Why had she said that? Was she possibly thinking that doing something about his fantasies might be OK? The idea of being sexual with Tara and Kira was terrifically exciting, of course.

But above all Bill the Good Man wanted what was best for his granddaughters. Would he need to step in to protect them if Allie lost her compass on the matter?

---------

Allie had said there was going to be a family meeting Saturday after breakfast. Bill had thought perhaps she had a new child care arrangement to announce.

Kira, Tara, Allie and Bill gathered in Allie's living room.

"I call this family meeting to order!" Everyone sat up straight.

"So, Kira, what do you think about grandpa?"

"I like him."

"Has anything changed lately?"

"He doesn't hug us any more, or pay attention like he used to."

"Yeah!" Tara put in.

"You'd like him to do those things again, right?"

Both girls nodded vigorously.

"Why don't you ask grandpa why things changed."

The girls looked at Bill.

"Go on, ask."

Tara spoke up. "Grandpa, how come you don't love us any more?" Her lip quivered as she spoke. That summary of her fears pierced Bill's heart.

What was Allie doing? She wasn't going to bring up Bill's fantasies for discussion, was she? Certainly not with all four of them present?

"I, I do still love you," he said, unable to look at either girl.

"Then why can't we snuggle with you any more?" Kira asked.

Bill started blushing.

"It's OK," Allie said softly. "Just tell them."

"Allie..."

"You can just say it," she continued quietly.

"Because, I ..." He looked at Allie, pleading for help.

"He loves you, but he loves you so much he wants to touch you places he doesn't think he should."

"Like they tell us in school?" Kira put in. "Places a stranger shouldn't touch?"

"That's right," Bill managed.

"What?" asked Tara. "What is it? What places? Huh?"

"You're too young to know about that," Kira said.

Tara started fuming, but Allie chimed in to head off trouble. "Your chest, and between your legs."

Tara hesitated just a moment, then jumped up and ran to Bill. Jeans and panties dropped to the floor in one fluid motion. "You can touch me between the legs," she said.

"Tara!" said Kira. "Those are your private parts! Pull your pants up!"

"Thanks, Tara, but that's not a good idea," said Bill, a bit overwhelmed. He started pulling her pants back up and she finished the job, looking a little confused.

Allie smiled. "That was nice of you, Tara... Kira, it's not that simple. Grandpa isn't a stranger. We're all in charge of our own bodies.

"There's a new rule around this house. We can show each other any parts of our bodies we want, if the other person wants to see. We can touch other people if they don't mind. We never have to if we don't want, but we can."

"Huh?" said Tara.

Allie made it concrete for her. "If grandpa wants to see between your legs and you want to show him, you can! If he wants to stroke your chest and it's OK with you, let him!"

This didn't sound much like a new rule to Tara. She had just begun learning about modesty, and the idea that it didn't apply around the house seemed like no big deal. "Now can I sit in your lap?" Tara asked.

"Yes," Bill said, absentmindedly. What was Allie doing? The rule in itself technically caused no problems. He would make it clear he didn't want to touch them and didn't want to see anything. Technically.

Tara didn't sit. As Bill reclined on the sofa, she plastered herself against his front, legs spread wide. She turned her face to the side, ear against Bill's chest, and with misty eyes she looked at her sister and her mother.

Bill kissed the top of Tara's head and wrapped his arms around her back. Uncertainly, with tentative glances at Kira and Allie, he patted her butt gently twice. He had a temptation to stop patting and rest his hand there... but that would be no good.

"There are two more rules. First, no one ever has to keep any secrets from me or each other if you don't want. Second, no one can tell anyone else outside the four of us. It's just our secret."

Allie smiled. "Any further business for the family meeting?" She didn't wait for a reply. "OK, meeting adjourned!"

Kira looked enviously at her sister soaking in affection from her grandpa, but then uncertainly went off to her room.

"Grandpa, can we go down to your place and you read me the goblin story again?"

"OK," Bill said.

Bill found Allie. "Tara wants to come down to my place," Bill said. "Is that OK?"

"Of course!" she said, though Bill thought he saw a moment of doubt. "Be nice! Both of you," and smiled at Bill. "We'll see if this helps your problem -- and theirs," Allie added with a smile.

"I'm just going to read," Bill said.

As Bill's door closed behind them, Tara spied a book on the table and said, "Read me more from 'Little House In the Big Woods'!"

Bill picked up the book and settled into the armchair. Tara plopped in his lap. He enjoyed the warmth of her butt against his crotch. As he held the book open and started reading, his hand crept onto the front of her shirt. First he rested it against her chest. That was OK, right? No permission needed for that.

He should just put his hand down at his side. He had meant it when he told Allie all he was going to do was read. But the hand didn't move. He desperately wanted to stroke her chest. All he had to do was to ask. As in a dream, he spoke, "Is that OK?"

Tara took a moment to figure out what he was talking about, then said, "You can touch me anywhere!"

Bill had the faintest glimmer of his conscience receding, weakening, then vanishing from sight. He wanted to touch her. She was OK with it. Her mother was OK with it.

"Be sure to tell me if I do something you don't like."

"You can do anything."

"Well," Bill said, "Let's see." Playfully he pinched her nostrils shut with one hand and her lips shut with the other. Realizing she couldn't breathe, she shook him off and giggled.

So as Bill read about Laura, Mary, and Pa, his hand traced gentle circles with his fingers on the front of Tara's shirt. Beneath Tara his erection grew. A couple times he gave in to a strong urge to give an upward surge with his pelvis. She would complain if she didn't like it, but he doubted she even noticed.

"Can you be my horse?" she asked when the chapter was over.

That game was hard on his back, so he didn't let them play it very often. He thought of a way to make it well worth the potential backache.

"Well..." he said. "On one condition." All he had to do was ask. He had blanket permission as long as she agreed.

"What?" she asked.

He leaned into her ear and whispered, "You ride me without any pants or panties on."

Bill had cut himself loose from the morality of the world.

She smiled at that, and in a flash had removed pants and panties -- her shoes had come off as soon as she was in the door. She started taking her shirt off, but he said, "No, leave that on, OK?" She shrugged.

So Bill made like a horse, whinnied, and Tara mounted him. She had on a shirt and socks, but nothing else. Looking over his shoulder he could see her pussy lips spread wide as she rode his back. He could feel the warmth of her girl sex through his shirt.

He had the image of a stallion with its cock lengthening impressively as he prepared to mount his mare. His more modest human cock was hard and twitching within his pants as he gave Tara a horsy ride. He exaggerated the up and down motion, reveling in the feel of her pussy pressing against his back again and again.

---------

Three sharp raps on the floor above were the signal from Allie that lunch was ready. Tara dressed and they headed upstairs.

Seated at the lunch table, Tara recounted her activities with the grandpa who had suddenly started loving her again.

"He read me a chapter from 'Little House In the Big Woods' while I sat on his lap!" Apparently she felt no need to mention the massage he had given her chest.

"Then he gave me a horsy ride -- but he had me take my pants off!"

Bill looked anxiously at Allie. Was this really going to be all right with her? She looked at him and shook her head slightly, as if to say, "You naughty man!" but it was entirely friendly and accepting.

But Kira fumed.

After lunch Allie set Tara up with an engrossing craft project in her own room so the other three of them could talk.

"Kira is feeling left out," Allie reported simply.

"I'm sorry, kiddo," Bill said.

"Can I come downstairs with you after lunch?" asked Kira.

"Yes..." he said, equivocating.

Allie said, "Remember, Kira, he feels like doing naughty things with you. Anything naughty you'd be willing to do?"

Kira was noncommittal.

"Just remember, you don't have to do anything you don't want --but he doesn't have to let you snuggle, either!" "Kira, can I kiss you?" Bill asked.

After consideration Kira said, "Sure."

"I mean, like a lot longer than we usually do."

"OK," the six-year-old said, looking uncertain.

Allie smiled.

---------

Bill read Kira the same chapter from "Little House" that he had read to Tara, careful not to touch her in any of the forbidden places.

"Now can I have a horsy ride?" she asked.

"You're awfully big for that!" Bill said.

"Please!" she wheedled.

"Well, what about that kiss."

"OK," she said.

As they sat in the chair together, she started by giving him the ceremonial family kiss on the lips. Bill repeated it with her, and then repeated it again. She smiled with amusement.

Then he rested his lips against hers, gently brushing grandpa lips against little girl lips. She broke the embrace to look at him.

"You want to stop?" he asked.

She knew without asking that she hadn't offered him enough intimacy yet to warrant a horsy ride.

For answer she closed her eyes and pushed her lips up at him. It was so sweet, Bill thought.

Their lips met again, brushing lightly over each other. After a minute, Bill said, "Can we lie on the sofa? My neck's getting tired from bending down."

In the new, more comfortable position they kissed for some minutes, making the telltale little noises as lips joined and parted again. Then Bill could feel Kira relax. She started initiating kisses, and her breathing showed she was actively enjoying it. He tentatively tried pushing his tongue between her lips. When she caught on to what he was doing they started exploring each other's mouths with tongues. Kira was amused at first, then taken with the sensations.

Bill started winding down the kissing after fifteen minutes, and Kira came out of it too. She did not immediately suggest claiming the horsy ride she had earned.

"I liked that, Kira; did you?"

Kira nodded.

"Would you mind if I kissed your face a little?"

Kira didn't seem to understand, so he took the liberty of demonstrating. He kissed her cheeks, then moved to the side of her neck and her ear. She squirmed and giggled when he found a ticklish spot, but mostly she took it in and seemed to enjoy the sensuality of it.

Next Bill started licking her cheeks, chin, front and sides of her neck, pausing now and then to go back to kissing.

After fifteen minutes of that he pulled back gently and looked at her. That was enough forbidden play for one day. He settled onto his back beside her and she promptly rolled over and snuggled against him. To his surprise she pressed her pelvis against his leg several times.

He offered her a horsy ride, but after a few steps she realized she really was too big. Instead, she got him to play over an hour's worth of cards: Go Fish, Crazy 8s, and Uno.

---------

"Let's go upstairs and get you some dresses, OK?"

Both girls seemed happy with that. They both suggested their Sunday best, but Bill wanted something they could play in more freely. They settled on sleeveless summer dresses, Tara's pink and Kira's light blue. Tara settled on his left in the big chair in his apartment, Kira on his right. Bill surreptitiously adjusted his soft cock so it pointed up towards his belly, as he knew it would soon be hard.

Reading the same chapter twice in "Little House" had been a bit tedious for Bill, though in a way nothing was tedious when he could run his hands over one of his little granddaughters. He would have gladly read the entirety of the stock price listings in the newspaper for that privilege. Now the girls were ready to hear the next chapter together.

"Can you hold the book open, Kira?" Bill asked.

"Why?"

"Because then I have a hand to touch each of you. Otherwise one of you might feel left out."

"Why do you like to touch us, grandpa?" asked Kira.

It wasn't the right time to explain the facts of life and his unusual variant on natural attractions. "I just do. Why do you like chocolate?"

"It just makes you feel good like chocolate?" Tara looked puzzled.

"Mmmm, hmmmm." He licked her cheek. "Milk chocolate," then he licked Kira, "dark chocolate." They both smiled.

As he read more of the adventures of the Ingalls family, his hand traced over Tara's sides and belly through the thin fabric of her dress. He tentatively touched his hand to Kira and looked questioningly at her. She smiled her consent.

So his hands moved in stereo on each of his little darlings. He started to pull the front of Kira's dress out from her body to peek down at her immature nipples, but she shook her head and pressed the dress back against her chest. He kissed her cheek to let her know that her refusal was OK. Tara was happy to let him peek down her front. It was such an enticing view that he didn't realize he had stopped reading until Kira nudged him back to business.

"You could touch me easier if I was naked," said Tara.

"Oh, that would be like gobbling the whole chocolate bar at once!" he said. "I like to nibble."

He felt the urge to rock his hips upward and decided to let himself do it, his engorged tip rubbing slightly against his briefs. He kept doing it every minute or so.

He moved his attention to the girls' thighs through the fabric of the dress, slowly rubbing back and forth. Kira didn't mind that. He slid his hand between the thighs, pushing each dress down between the girl's legs.

When the chapter was over, both girls hopped up. "Now we can go to Drumlin Farm!" Tara exclaimed with excitement. There were farm animals there for the kids to pet, and injured wild animals to see.

"Wait, just one more thing, if that's OK."

He nudged Tara to stand right in front of him as he leaned forward. With both hands he stroked her calves and knees, then slowly slid his right hand up the inside of her thigh under her dress. He took his time, luxuriating in each inch of smooth flesh as he worked his way upwards.

"Should I pull my dress up?" asked Tara.

"No," put in Kira, "That would be like biting into the chocolate." She understood a bit of the logic of her grandpa's attraction.

"Oh, Tara, that is so nice!" he said, with passion.

Kira shifted uneasily from foot to foot.

Tara had instinctively moved her feet apart as his hand moved higher. Finally his hand touched the crotch of her panties, warm and dry.

His face was slack with excitement. "Can I put my fingers inside?" he asked.

Tara and Kira were both studying his face. Tara smiled and nodded, and he snaked his fingers around under the cloth and fingered the smooth skin of her labia. All that was visible was his forearm disappearing under her dress.

"Thank you!" he said, removing his hand.

Tara and Bill looked at Kira. "Now you have to do it!" said Tara.

Kira shook her head.

"Yes you do! It's not fair!" Tara put in.

"No, she doesn't," Bill said, but with a touch of disappointment.

Kira sensed his disappointment, then leaned forward and whispered in his ear, "You could do it with me, but not with her watching."

Bill was sorely tempted. His penis twitched at the memory of their long kiss on the sofa. But Tara would be very unhappy to be left out.

He went to his high cupboard where he kept the candy, then leaned down to Tara: "You've been really, really nice to me, but now I'd like to go in the bedroom alone with Kira, just for a little. Are you a big enough girl to be OK with that?"

Tara started to protest, but he held out two Hershey's Kisses. "You can have these. Please?"

Candy was never allowed before supper time. She took them and smiled, not thrilled but willing to accept the bribe.

Bill took Kira's hand and led her quickly into the bedroom and shut the door. Kira locked it, not trusting Tara's self-control. Bill thought that was probably prudent.

"You can have four Kisses later," he said.

He sat beside Kira on the bed. Kira reached up to give him a long kiss, and Bill returned it briefly. But he knew Tara would get impatient, and he wanted more.

He then repeated with Kira what he had done with Tara, but much faster. He eagerly put his hand at her knees and started sliding it up under her dress, massaging her inner thighs as he went. Kira smiled. He let her dress ride up, and he gently nudged her to lie back on the bed. He slid his hand down the front of her panties and started massaging quickly.

Kira looked uncertain for a few seconds, but pushed her pelvis back at him. That was so exciting Bill thought his cock would burst.

He could go to the bathroom for a few quick jerks and release, but he wanted it to be with Kira. "Let me know if this isn't OK," he said. He leaned over on top of her and pressed his crotch against her dress over her belly. She looked confused as he started thrusting back and forth, his member beneath briefs and pants. She looked uncertain and a bit alarmed, but as she wasn't saying "no" he kept going.

His dick didn't want to be rubbing against cloth, of course. It wanted to be sliding into a warm, wet vagina. But he convinced it that this was the best it was going to get, and he felt his climax approaching.

"Aren't you done yet?" Tara asked from outside, trying the door.

"Just a minute," Bill panted. The interruption broke his concentration for a moment, but he continued with his rhythm, speeding up a bit. Kira's stomach jiggled beneath him with each thrust. He didn't have long. Tara muttered and whined.

A few more strokes and he felt it beginning. "Oh, Kira!" he whispered urgently, then gobs of cum spurted into his underpants. It certainly wasn't the best orgasm of his life, but it was release, and it was very special seeing Kira's gorgeous face as he pressed against her body.

She still looked perplexed and a little uncomfortable. "Oh, Kira, thank you so much! I'm sorry I didn't explain," he managed as he caught his breath. "I'll tell you later. But that was like a big chocolate sundae for me -- a huge one! You can have ten Hershey's kisses, just don't tell Tara." With that he kissed her gently all over the face, then briefly on her lips, though Kira didn't seem to be in the mood for kissing.

He quickly got up and pulled Kira to her feet, adjusting her panties and dress as he did.

"OK, Tara," he said, walking a bit unsteadily to the door to open it and let her in.

"Now we can go to Drumlin Farm!" he said.

"What were you doing?" Tara asked, looking back and forth between them.

Kira's confusion readily gave way to more familiar territory: her big sister superiority.

"None of your business," she said. This did not improve Tara's mood.

Bill turned and looked at Kira pleadingly, "We did the same things I did to you." Kira got the message. She could have her secret with grandpa, and if they were going to have a good time on their outing it was better not to upset her little sister.

Bill sponged himself off in the bathroom and changed briefs.

The girls loved the afternoon. After a quick lunch at McDonald's they spent hours at Drumlin Farm. Bill took turns giving the girls rides on his shoulders. He treated each of them to a pony ride. For dinner they went to Bertucci's and he let them share a big piece of chocolate cake.

---------

Bill didn't suggest anything sexual with Kira for two weeks. She didn't ask about what had happened in the bedroom and he didn't want to explain anything any faster than she wanted. He made sure to touch her just the way she wanted and as much as possible just love her on her own terms.

Tara, on the other hand, liked experimenting with sex play. When bath time was over and she was dry she asked him to stroke her chest and slide his hands up the insides of her thighs. She wiggled her butt at him.

When it wasn't bath time, she was happy to let him slide his hand down the back of her panties and reach her pussy lips that way, and to reach down the front and back at the same time.

He had always been fascinated watching the girls pee, and now he asked Tara to spread her legs wide so he could move in close and have an especially close view.

Bill tried kissing Tara more intimately as he had with Kira, but she didn't seem to quite get it. So he was content to let that wait until later.

On one particular night after bath time, he watched Tara pee and wipe herself, then found himself stroking her pussy lips for longer than usual as he got very aroused.

"Can we go into your bedroom and try something before you go to bed?" he asked her.

"Sure!" she said.

Once in the bedroom Tara closed and locked the door. "I don't want Kira to see."

Bill pulled back the covers on Tara's bed and got her to lie back. Tara was still naked from her bath.

After running his hands all up and down her body he asked, "Can I kiss your chest?"

She nodded, and Bill kissed a bit but soon started licking, making Tara squirm and giggle. Soon he focused on her tiny nipples, and licked them slowly, while above he stroked her hair. He took the nipple into his mouth and sucked very gently.

Satisfied, he looked adoringly at his granddaughter and said, "Tara, you are so great. You make your grandpa feel so good!" Tara smiled happily.

"There's one more thing I'd like to do." He gently stroked her labia. "I'd like to kiss you down here."

Tara made a face. "Down there? It's dirty!"

"You just took a bath, so it's not dirty. But it feels kind of naughty, right?"

"Yeah," she said, not looking convinced she wanted to do this.

"I'll give you twelve M&Ms," Bill said hopefully. "And I'll be really slow. I'll be licking it like an ice cream cone. If you want me to stop, just say so."

"OK," Tara said, still uncertain.

He never tired of looking into those big blue eyes. Bill kissed her once on the lips, and then on each cheek before moving down the bed to approach his prize. First he just licked up and down her labia on the outside. Tara giggled once, then stopped.

He lifted his head, "I like that so much, Tara. Is that OK with you?" She nodded.

He went back to licking. Slowly he spread her legs wider so the labia naturally parted a little. Then he placed his fingers on the outside parts and gently pulled them apart, revealing fully her girl parts. He feasted on the sight. He licked her vaginal opening gently, exploring it, but he soon adjusted his licks to linger on her clitoris each time.

It took Tara's clit a few minutes to wake up, but once it did Bill could feel her wiggle her hips a bit and start breathing more deeply.

"Oh grandpa, that feels soooo ... mmmmmmmm."

"I'm so glad you like it. That's the feeling I get that I said was like eating chocolate."

"Mmmmmm."

Bill happily returned to licking out his little granddaughter, and his arousal became so great he felt it as frustration. After half an hour Tara's pleasure seemed to wane, and evidently she had not had an orgasm.

"Tara," he began. "There's a spot between my legs that lets me feel really good just like you've been feeling good. Now if it's OK with you, I'm going to put my hand in my own underpants for a few minutes to make it feel good." It felt very exciting just to tell her.

"OK," Tara said, looking down with curiosity as Bill slid a hand down through the top of his jeans and briefs. He made sure she didn't see anything of what was inside.

The pleasure built, but Bill needed a little more. "Tara, can you hold your little lips down here apart so I can see?"

She did, and with the sight of her exposing her little organs to him the pleasure throbbed, and he spurted cum all over his hand and underpants, "Oh, Tara! Ohh, Mmmmmm, Aaaahhhhh!"

He flopped down on the bed below her. She scooted down to hug him. He tried to wipe most of his cum off his hand as he pulled it out of his pants, but despite his care a little ended up on her naked back. He smeared it around so it would dry and she wouldn't notice.

Tara was looking sleepy, so Bill extricated himself and helped her into her pajamas. He left after a last hug and kiss.

---------

Allie and Bill told the girls repeatedly never to talk to anyone else about any of the naughty things they did. They didn't realize at the time what a risk they were taking, but fortunately neither girl talked.

When the two of them were alone one evening, Allie asked, "How's my dad doing with his sexy granddaughters?"

Bill was getting more comfortable with telling of his encounters. "I did some French kissing with Kira. I also slid my hands up between their legs." He didn't really want to talk about the other stuff, though he would if pressed.

"Is that it?" she asked.

"Well..." he said.

"The girls tell me you're quite the pervert. Or rather, from what they tell me, I see you're quite the pervert!" She said it with a good-natured smile. "Eating out little Tara, dry humping Kira. And you like to watch Tara pee! I thought only little boys were curious about that!"

Bill shook his head, growing a bit pink.

"Why don't you show them your organ? I think they'd get a kick out of it."

"What? They won't be shocked?"

"Nah. Kira wants to know why you were bumping against her belly; I assured her it was fine with me if it was OK with her, but told her I'd leave it to you to explain. And Tara's curious to know what you did with your hand inside your underpants. Did you come?"

Allie was being very forthright. "Yeah," he said.

"Both times?"

"Yeah."

"Good for you!" she chuckled.

---------

As Bill and the girls sat in the armchair in Bill's living room, he took Tara's hand and put it over the fly of his cords. He had an erection as usual.

"Feel anything unusual?" he asked.

"Yeah, what's that bump?" she asked. She felt around to get its shape.

Kira eagerly took her turn palpating Bill between his legs. "It's kind of like a stick."

"You've seen little boys with their penises?"

Both girls nodded. "Well, that's my penis." They looked confused.

"When a man grows up it gets a lot bigger, and then when he's in the right mood it gets long and hard like that."

"What's the right mood?"

"When men and women get all lovey-dovey that's the usual time. That happens to me too, like when grandma was alive." Bill had a sudden pang of loss, but it passed. "For me, it also happens when I'm with you. Would you like to see it?"

They both nodded eagerly. He didn't have to offer any chocolate bribes.

Bill led them to his bedroom and folded back the sheets. He lay down and took off the cords, the bulge showing much more clearly when covered only by the thin cotton fabric of his briefs.

"Ready?"

The girls nodded.

"You can leave or tell me to stop any time."

He slowly pulled them down, lifting the cloth a little to get over his tip. First the purple head showed, then more and more of the shaft became visible, lying on its bed of thick pubic hair. Finally his scrotum and testicles showed up. He pulled the briefs down the rest of the way.

They were both fascinated, and neither looked frightened. He lifted his cock so they could see the rigidity of his full seven inches.

"Can I touch it?" asked the ever-intrepid Tara. Bill nodded.

He thrilled at her small hand's first touch. She stroked it a little, lifted it, and squeezed it gently. Kira first focused on his scrotum. Looking at the smooth skin from the base of the scrotum all the way to his anus, she said, "You don't have any slit!"

"Nope, we boys and men never do."

"Weird." Kira wanted her turn on the main attraction, and Tara readily gave up her exclusive rights.

Bill gulped before going on. Would they really be OK with this? "What makes me feel really good is when it moves back and forth against something. I was rubbing it against my underpants when I was on top of you, Kira. And my hand was rubbing it when I was with you, Tara."

The girls nodded.

"You know how boys pee out the end of it?" He showed them the little hole in the end. They both nodded, though Tara's nod was delayed enough to make Bill wonder if she really had known that.

"When I feel really, really good, whitish stuff shoots out the end too."

Tara giggled.

"It's not pee."

Bill was dying for release. He loved the idea that his granddaughters would be watching.

"I'd like to get that really good feeling now, and if you could show me something naughty I'd love it." He started stroking up and down.

Tara immediately stripped and began rubbing her own pussy lips. Kira hesitated just a minute, then she pulled her pants down just a little. "Turn around and wiggle your butts, OK?" How enticing!

"OK, watch!" Bill said. His pelvis arched up, "Nnnnnnnhhhhh!" he gasped as a jet of semen splatted on his neck. With the next arch another shot out onto his chest, and a third dribbled into his bellybutton.

Tara giggled.

"First I clean it up," he said after catching his breath, grabbing tissues from his bedside table. When he had finished, he said, "And now, if you girls are willing, I'd love a naked little beauty on each side of me."

This time Kira didn't hesitate to strip completely, and soon one warm wiggly body pressed against one side, another against the other. Sweet breath and the smell of girl wafted to him from both sides. He was in heaven. His limp organ rested content. Kira periodically rubbed her pelvis against him.

---------

School ended the next week. Bill took the girls shopping to pick out four new bathing suits for each of them; he chose one and they chose the other three. He got them new summer clothes.

He bought them five new games for the Wii, accessories for their dolls, and an assortment of other toys and games.

While Allie worked and studied, Bill took the girls to pick strawberries, to the Science Museum, Six Flags, the Children's Museum, and the zoo. They went to the beach at least a couple of times every week. The suits were nearly as revealing of the shape of their pussies as panties, but it was somehow permissible in the one case, but not the other.

Bill enjoyed their company and their delight at every new thing. He really did like them the way any grandpa likes his granddaughters. He just had this other way he liked them, too.

---------

The three of them were alone again a few days after he had jerked off while the girls watched. "Grandpa, will you lick my peepee again?" Tara asked.

"Sure," he said, eyeing Kira and wondering how she would react.

Tara had eagerly reported Bill's tongue work and how it had felt really good, but Kira wasn't interested. Now they would see how she felt about watching.

Tara lay back and spread her legs wide.

"Let's talk about words," grandpa said. "'Peepee' is fine, but there are grown-up words too. The official name for this whole area, everything you can see, is 'vulva', but it's also called a 'pussy' or 'twat'. These," he said, touching them and wiggling them open and shut, "are 'labia', but the sexy name is 'pussy lips'.

"This little tiny thing," he said, "which feels really good, is officially 'clitoris', or 'clit' for short."

"And this thing," Bill said, with a touch of reverence, "is the opening to a tube inside which is a 'vagina', or 'pussy', but the exciting naughty word for it is 'cunt'."

"My thing is a 'penis' of course, but also known as a 'cock', 'dick', 'prong', 'tool', 'manhood', or 'rod'. And I'm forgetting a bunch."

"So many names!" said Kira.

"Well," Bill said, only half in jest, "it's a very important organ! The sack below is a 'scrotum', and the little hard things inside are 'testicles', but they are known as 'balls'." When I get that really good feeling, it's called an 'orgasm', but it's more commonly known as 'coming'. The stuff that shoots out is 'semen', but is also known as 'sperm' or 'cum', or 'seed', or 'jism'. And it's exciting for me to use the other words and hear you use them."

Bill began licking luxuriously all around Tara's delightful little smooth pussy lips, then inside. He poked his tongue into her vagina. It went farther in than he would have thought, with no resistance. Tara giggled.

"You're in my cunt!" she said.

Oh, this girl learned fast!

Bill returned to her small clit, and this time it woke up much faster.

"Oh, grandpa," she moaned. He lifted his head to find Kira staring at them, her hand tentatively rubbing her crotch through her panties. When she saw his head come up she quickly withdrew her hand and looked away.

Bill smiled at her. "It's OK," he said quietly. "You can feel good too. I even like it when you do." Kira still looked uncomfortable.

Bill went back to the enthusiastic little girl whose legs were spread as wide as they could go, pushing her little crotch up at him. He licked carefully, at all different speeds, pressures, and different spots. He loved her scent. But after a while her interest flagged and he stopped.

When he looked up this time Kira had her hands inside her panties, and although she froze momentarily when she saw him looking, she smiled a little and went back to a rhythmic motion.

He had wanted to touch Kira's crotch for a long time, of course.

"I would love to see what's inside those panties," he asked quietly, "if you're willing."

Kira hesitated. Then she pulled her panties off and slowly spread her legs wide to show her grandpa her privates.

"You are so beautiful down there," he said. Kira looked a little bashful.

To Bill's surprise, Kira then said, "Tara, time to move over, I want a turn."

Tara was delighted at the prospect of seeing her big sister getting the treatment she had, so she sat back quietly to watch.

Kira lay with her legs wide apart. As Bill approached her little pussy he asked once more, "Sure you want to do this?"

Kira nodded. Bill dove into Kira's crack with his tongue. Kira's clit needed no time to wake up; she had been rubbing herself. She was moaning at once and gasps mixed with the moans as he continued. Her hips squirmed, then started bucking upwards. He licked a little harder and faster.

"Oh, grandpa!" she moaned. "I feel ... is it OK?"

"Really good?" he asked, lifting his head.

"Yes!" the young girl panted.

"It's OK, just relax and let it happen. It will be a nice surprise," Bill grinned.

"More! Please?"

He returned to her clit with special care. Kira panted and murmured. She bucked harder and moaned louder, then after a minute she shrieked.

"What's wrong?" Tara asked, worried. "Are you OK?" she asked her sister.

"Mmmmm," said Kira.

Bill lifted his head and elaborated. "She is OK. More than OK. She feels great."

He raised himself to feast his eyes on Kira's face, slack and more beautiful than ever in its ecstasy. Her body was relaxed in all its glory, and she displayed with no shame the private parts which she had just shared with him and which had just brought her such pleasure.

"That's how I feel when I shoot the stuff out the end of my cock," he said. "You just had an orgasm; you came!"

"Oh, wow!" Kira said.

"It didn't feel that good to me," Tara said.

"Yeah, it didn't. We'll just keep doing things that feel good and see what happens," Bill added.

"You're too young," Kira put in. This time she might be right, but she might not.

"Kira..." Bill said sternly.

---------

Kira and Tara were naked and waiting for their grandfather's next interesting suggestion.

"Kira, I've got a new idea."

"Yeah?"

"You know how when I rub my cock and I have an orgasm it feels really good?"

"Sure."

"Could you rub it for me? That would feel even better."

"Okay," she said. Bill pulled the K-Y jelly out of the bedside table drawer while she sat beside him. He showed her how to grasp his organ, firmly but not too tight, and she started to get the hang of it; it felt good. But watching her smooth body beside him, he wanted more.

"Could you lie down on me so I can see between your legs."

She shrugged and assumed an approximation of the "69" position.

"Now, spread your legs really wide, like a frog."

He then had a beautiful view of her smooth little sex, and he spread the lips gently with his fingers. Kira looked over her shoulder briefly and smiled, then returned to stroking her hand up and down.

"Is there anything I can do?" Tara asked.

Bill briefly considered.

"Oh yes, Tara. Kneel on the bed here beside me, legs apart a little, and hold your own pussy lips open."

She eagerly complied, smiling.

Now Bill had two alluring sets of girl pussy lips open before him, not even a foot from his face. He started thrusting his hips upwards a little in rhythmic motion. He noted with some surprise and excitement that a little wetness was showing at the entrance to Kira's pussy.

"Oh, a little faster, Kira!" Bill said. "Don't stop when the stuff starts coming out, OK?"

She nodded, and the tingling and urgency grew. Bill gave a big groan and a big upwards thrust and his first gob of cum spurted out. Kira giggled; it had splatted onto her somewhere, though Bill couldn't see where. She hesitated momentarily, which made Bill feel a moment's agony of frustration, but then she began stroking again, which was doubly exciting as he spurted again and again.

"OK, that's great!" he panted. "You're so sexy."

Kira turned around.

"You're a mess!" Tara exclaimed.

Kira had cum all over her hand, and he had splatted it onto her cheek and neck. She tried wiping it off, but with the cum on her hand she just smeared it around more, which got her giggling.

Bill got her some tissues and she cleaned up.

"You started getting a little wet down here at your pussy," he said.

Kira looked a little confused. "Is that bad?" she asked.

"No, but when it happens sometimes it means girls want to feel good."

Kira squirmed a bit. "Yeah, doing it to you made me feel funny."

"OK, sweetie, lie back down on top of me and push that gorgeous pussy of yours up into my face."

She did. Bill started licking away, and Kira relaxed and made an "mmmmmm" sound.

Tara spoke, "Is it feeling really good yet, Kira? Grandpa, will you do that to me later?"

Kira sagged. "I can't do it with her in here! Could you just GO AWAY," she grumbled.

"I wanna watch!" said Tara.

"Wait, wait!" Bill said, hoping to find a way to keep both girls happy -- and keep both little bodies in the room with him. Tara had been with them before, the first time he had licked Kira to orgasm and hadn't said anything. But then she had just been licked herself for half an hour. "Listen, Tara, when I am doing Kira, that's the most important thing in the world at the moment, and you shouldn't do anything to distract her. Now if you can feel like you really want her to feel good and it's all about her, you can stay and I think she'll be OK with it. You think you can do that? Do you really want your sister to feel good?"

"Yeah," said Tara, and after a pause, "Can I play with myself?"

"Sure you can, if you're quiet and make sure you're looking at Kira and focusing on how it feels good for her."

Kira grumbled again, but Bill said, "Give it a try, Kira, and see how it goes."

Bill fingered Kira's pussy lips, opening them.

"Tara, isn't your sister's body beautiful? Remember how good it feels?"

"Yeah. I hope grandpa makes you feel really good, Kira."

Bill returned his tongue to Kira's little clit, and she wriggled her pelvis just a little.

Tara sat with her legs apart, her finger rubbing her own labia, but looking intently at where Bill's head was buried between Kira's legs.

After several minutes of increasingly plaintive moans, Kira turned her head to the side to see her little sister looking at where Bill's tongue was giving her such rich waves of pleasure, and saw the little sister playing with herself, and gasped, "Faster, grandpa!"

Bill picked up the pace, and within a few seconds, she mushed her twat down hard onto Bill's face and gave the distinctive groan of orgasm.

Tara was a very good girl and waited to speak until the other two had extricated themselves and her big sister was snuggled against her grandpa's chest.

"That was how it felt really good?" she asked.

Kira nodded.

"I'm so glad you felt really good. My turn, grandpa?"

Kira thought again of how exciting it had been to see Tara playing with herself, and had a sudden surge of love for her little sister.

"What if I try licking your cunt?"

"You?!" Tara exclaimed.

"Why not?" her grandpa asked, grinning. "I don't really know how it feels to have little girl parts like you do, but Kira does! Maybe she will know better how to make you feel good, maybe even to come."

The sisters smiled at each other, and then Tara lay back, legs spread wide, while Kira moved her head up between her legs.

"I've never looked at a girl up close," Kira noted. "I guess I look like that too?"

"Just as gorgeous," Bill answered.

Kira started licking away, and Tara smiled. "That's so nice, Kira!"

Bill's erection had returned, hard and twitching. "Oh, girls, it's so exciting to watch you do that!" he said, starting to stroke his organ. In that moment he realized, more clearly than before, that what he really wanted to do was gently push Kira aside and slide his cock into Tara's little cunt, press deep and spurt his cum inside her. The cock wouldn't fit, of course.

"Is it OK if I spurt on you down there?" grandpa asked.

Tara was lost in pleasure and nodded absentmindedly. Grandpa watched the big girl licking away in earnest in the little girl's private parts. He was wanking away, and within a minute he leaned over and aimed his cock right at the crevice where Kira's tongue was licking away. Just as the first shot was rising from his balls he remembered that he would be coming on Kira's tongue, and he hadn't asked permission for that, so he quick guided his dick up so that his sperm shot right on Tara's little mound. He coated the area with his second and third shots. Tara barely noticed. As he was coming down from the fog of his climax he realized a little of his milky cum was starting to trickle down towards the junction where tongue was pleasuring clit, so he reached down to wipe it upward again.

Tara had her eyes closed but her face showed she was straining, not just enjoying the sensations but wanting more, and Bill thought she was maybe on the verge of orgasm. He took his finger, coated with his semen but not enough to drip off, and placed it an inch from Tara's nose so her feminine smell receptors would receive the distinctive male odor. She immediately shrieked and convulsed. Bill smiled.

As her afterglow faded, Tara wriggled, making it clear to Kira that she was done.

The older girl's head came up grinning. She noticed the blobs and smears of cum right in front of her and smiled up at her grandpa. "Why did you want to shoot the cum onto her?"

"I just do. It's just another bit of that chocolate. Maybe like the hot fudge." He would leave an explanation of the basic reproductive desire for another day.

"Oh Kira, that felt so really good!"

"Congratulations, Tara," Bill said. "You now know what orgasms are like."

"Can I have another one?" she asked.

Bill and Kira chuckled. "Not just yet," Bill answered.

---------

Allie and Bill were both alert to any harmful effects that their sexual escapades were having on the girls. One thing they both noticed was that as soon as the girls started having regular orgasms, they showed a new energy in life. They became more confident and sociable with friends, more cooperative at home, brushing off setbacks more easily and seeming to enjoy life more in every way.

---------

Bill had a number of framed pictures on his walls. One was a painting Matt had done in elementary school, and another was Allie's. Matt had more talent, but of course Bill had had to have one picture by each of them. As he looked at Allie's painting one morning, he noticed something a little different, or was it? On closer inspect, there was a little dark circle, the diameter of a AAA battery, perhaps, in one of the dark areas of the painting. He looked behind the painting and was startled to find a tiny electronic device. It was readily apparent that it was a camera, and the circle behind the glass in the painting was the lens.

At first he panicked. The lens was aimed at his bed. Were the police staking him out? If so, he was finished. He had done enough with his granddaughters to land him behind bars for a long time. It didn't seem likely, though. Once they got a look at one of his sessions with the girls, they would arrest him, not keep recording.

He readily found the model number on the camera, and quickly determined from the web just what it was. It broadcast a wireless signal to a receiver that could be some distance away.

He had a hunch, and when he was up visiting Allie, he picked a moment when she was logged in but away from her computer to quickly determine that she had the software installed. He got as far as finding a directory full of movies, and quickly looked at one clip of him eating out Kira while Tara jacked him off. Then he felt he ought to rejoin the family so as not to arouse suspicion.

Later, he thought things over. Allie had had the opportunity to see a lot more than his sessions with Tara and Kira. She undoubtedly had collected footage of him masturbating, picking his nose, and admiring his cock beyond what mere masturbation would require. He felt like Allie had betrayed his trust, and that annoyed him.

He had always respected her privacy -- well, at least since high school, when he had snooped on her computer. She had caught him and he had confessed, though with a grown-up's authority he had argued he needed to check on what she was doing online. It wasn't exactly a good excuse, he realized. There were other times he had poked through her drawers to see if she was hiding anything from him. He didn't exactly have clean hands.

He was also abusing her daughters. Although she had approved of the concept, it would still make sense that she would want to know the specifics to make sure nothing got out of hand. She was being a protective mother.

But one piece of evidence didn't fit that picture. There was no need for her to keep a whole library of movies. He had a hunch that made him smile.

During another stolen moment at Allie's computer, he determined that she had scheduled the camera to only broadcast during the afternoons and evenings when the girls might be visiting. As he had discovered the camera in the morning and left it in place, there would be no footage of him finding it, so it seemed unlikely she knew he had discovered it.

He set his plan in motion.

---------

On the computer in his study he watched a few boring videos of Allie moving around her room, getting dressed, putting laundry away, and so forth. He also saw her picking her nose and looking at herself in the mirror while she massaged her breasts and rubbed between her legs. He figured all people had little secret habits, and they didn't bother him. He hoped she felt the same about his private antics.

And then he found a scene that took his breath away. There was his daughter intently watching her wide-screen TV as it showed Bill eating out Kira while Tara licked her sister's nipples.

Allie was naked, legs spread wide. He hadn't seen Allie naked since she was -- what, five years old? -- and her body was very sexy, even after two pregnancies, and he studied that body. Her breasts were the size of small grapefruits, and the nipples were big and beautiful. They had been used for their intended function, as both girls had nursed. Her pussy was just perfect, a tuft of hair above her beautiful pussy lips, now engorged and spread wide. Although it wasn't her intention at the moment, her body was ready to get fucked, and he felt a surge of blood to his loins.

She had reclaimed these parts as private when she was five, and she had offered them to seven different young men before settling on Kyle. Well, make that six young men and one professor.

Now her fingers massaged away urgently. From her left hand she was thrusting several fingers into her pussy, deep and hard. The other was pulsing on her clit.

The sound track was faint but distinct, "Do my baby, give it to her, fuck her!" That made Bill start.

Allie turned over and stuck her butt up in the air, still watching intently. She supported herself on one hand while the other moved rapidly between her legs. She alternated between pulsing on her clit and fucking herself. And then she groaned with orgasm -- a big full, woman's orgasm. After it subsided, Allie clicked the remote to turn off the video, then sat down. Just as she reached up to turn out the light Bill saw a big satisfied smile on her face.

He realized he had a very hard erection from watching his daughter masturbate. He had a momentary glimmer of shame that he was turned on by his own daughter. He was already abusing his granddaughters incestuously, but attraction to his daughter was the urge to incest in its most basic, forbidden form. At least she was a grown woman. He shrugged.

Going to his bedroom, he started to lie back on the bed, then realized that Allie's camera was recording him. He turned out the light, stripped, and pressed his hips up over and over, thrusting away into his hand, and with the vision of Allie's butt up in the air, within seconds his body was primed to spurt. He whispered, "Oh, Allie -- I mean, Kira!" The semen spurted out, pulse after pulse, as pleasure glowed throughout his body.

He knew his daughter had been open about discussing sex, but this was a new dimension. She got off on watching her dad abuse her own daughters! Allie had been willing for him and her daughters to be sexual as long as everyone was willing. He now realized that her motivations might not have been entirely pure.

Most astonishing was her fantasy that he actually fuck her daughters. There was no ambiguity about it. That meant penis inserted into vagina.

He was a pedophile. What was the word for someone who fantasized about a pedophile fucking her daughters?

---------

The girls still liked all the activities he did with them -- the reading, make-believe, trips to the park and museums. At first he had gotten them into the bedroom as a favor to him. But he no longer had to convince them to accompany him. They were experiencing sexual pleasure, and they liked it.

He wondered what would be different in their threesome, knowing Allie would be reviewing their activities. What he felt was some extra excitement. Partly that was because he felt an extra layer of permission from Allie. Her rule had been that the girls didn't need to keep any secrets, but she didn't pry into their activities with Bill. But now it was apparent she was right in there, spying on everything they did and not putting a stop to any of it.

The biggest turn-on, he realized, was realizing that Allie found it a turn-on to watch him.

The girls weren't dressed in an especially sexy manner -- pants and long-sleeved shirts, as the weather had gotten cooler. Tara stood in front of him, and lifted her arms so he could lift her shirt up over her head. He stroked her chest briefly. But what he craved was down lower, so he tugged her pants and panties as a unit until her ever-alluring little girl labia popped into view. He stroked them briefly, then kissed them briefly. He did the same with Kira.

"I have a new idea today, girls."

"Yeah?" asked Tara with excitement.

"You get like this, Tara," demonstrating by getting into doggy position with his knees right at the edge of the bed. "Kira, you lie down on your back between her hands and legs with your head near the edge of the bed. Spread your own legs wide." That would be an alluring touch if he peeked around Tara's butt to look. "First let me lube up your hands."

"Now, make a little tunnel out of them for my cock and hold it up here, right below Tara's pussy. There! You hold them still and I'll do the back and forth."

Bill bent down to spread Tara's pussy lips, then licked them, including the entrance to her tiny cunt hole. If only his cock would really fit!

He then stood and approached her little rear end, and slid his cock along her labia and into Kira's waiting hands. He began his in and out motion. It was amazing! He started on those urgent thrusts that lead to orgasm, excited to think Allie would be watching this later. It was about as close to fucking her daughters as he could get. Just then Kira said, "Come, grandpa! Shoot your cum all over me!"

Tara pushed her butt back against him and looking over her shoulder said, "Yeah, grandpa, come!"

That was all it took. As he imagined his dick sliding deep into his little granddaughter's cunt a wave of amazing pleasure seized his brain and he felt the spurts come out. After his first spurt the image of Allie watching came into his mind and he felt an extra surge of pleasure that added some extra force to his second spurt. He turned his head slightly towards the camera so his orgasmic expression was fully visible to anyone watching the video.

Kira giggled, and when he pulled away he could see that his first spurt had ended up right on her labia and was now oozing down between her slit, the next just a bit higher on her, and the last couple blobs had dripped onto her face.

Bill flopped down on his back on the bed. "That was so wonderful, girls! You're so great!"

They gave him big smiles. He proceeded to eat Kira out carefully and patiently. Tara briefly squatted above Kira's face for some tongue work, then sat close by to pleasure herself. After Kira had convulsed, it was Tara's turn.

---------

That night when he checked the feed from his camera, he saw Allie once again spread out naked, looking at the TV and massaging herself as she looked at the video of Bill pulling his daughters' pants down and giving them instructions. She looked especially excited as Tara positioned herself like a little doggy, and stopped in amazement as he saw Bill sidle up behind her. Allie went at herself like a woman possessed, and she gave a little scream as she came. But she went right on pulsing her hand on her clit until she came again. Just then the video reached the point where Bill had turned his head to the camera to show his orgasmic pleasure -- seeing it now, it looked less like a natural, innocent turn than he had thought at the time.

Watching now, he saw Allie drag herself from orgasmic bliss to confront feelings of puzzlement and fear. She suspected something! After a moment, her legs shut and she looked around for ways to cover herself. When she had found her bathrobe he saw her start scanning the room. The final section of the video showed Allie's indignant expression as she spotted the camera and her hand reached up to block the picture.

Bill realized that filming Allie had been a dumb idea. She could have found his camera at any time, just like he had found hers. The situation had been stable as long as she thought her activities and proclivities were hidden. But now they each knew of the others' spying activities, and knew the other knew.

Now she might come to her senses and stop letting him abuse her daughters. But he also knew that this woman was open-minded enough to share sexual fantasies and accept her father as a child abuser, though she apparently didn't think of it as abuse. He would just have to see what happened. She had shown that if she wanted to talk, she would approach him.

---------

The next day Bill noted that Allie acted awkward around him. She wasn't seizing the first opportunity to be cool about what they now knew about each other. She tried to act as if everything was normal, but she wasn't a very good actress. She kept her eyes cast down and only raised them for the briefest glances at him.

When he got back from an outing with the girls he noticed that the camera in his bedroom was gone. And checking his computer, he saw as expected that his own camera had not received any transmissions, and knew without a doubt that Allie had removed it.

He and the girls resumed their normal routine for the next two days. He found that Allie no longer left herself logged in when she was not at her computer.

On the evening of the second day, though, the camera was once again positioned in Allie's painting in his bedroom! He smiled.

Without thinking much, in celebration, he stripped and lay on the bed. After applying some lube he gave himself a slow, luxurious hand job, making sure it was all visible to the camera. He let his face take on a look of pure pleasure when he came.

Later he reflected that in providing Allie with that feed, he was knowingly feeding an incestuous pattern. They both knew that he had chosen to display himself masturbating to her. That was different from letting her watch his escapades with her daughters. They had stumbled into a level of incestuous intimacy with each other that neither had really intended. He wondered what would happen.

He felt almost certain Allie's feed would be working again, and he was right.

She was not looking at the video of him masturbating, but at a much earlier video where he had lubed both hands and insinuated fingers inside the labia of both girls at once and given them pleasure in parallel. It was sweet as he recalled it. Kira had come first, which distracted Tara, but after a few seconds the big sister had put her head to the little sister's ear and whispered encouraging things while she stroked her hair. Bill had used the hand that had brought Kira off to massage Tara's stomach, hips, and chest. The little one had soon convulsed. The look of sheer joy on a child's face is one of the wonders of nature, and it is no less wondrous when the joy comes from orgasm.

Returning to the current video from his contemplation of the video of the video, there was one big difference tonight. Allie was under the covers. He could see that her hands were moving; she wasn't hiding the fact of her masturbation from him, she was just hiding the view of her body. She didn't hide her expression of bliss when she had her orgasm.

---------

Bill felt hornier than ever, drawn to his granddaughters with a heightened lust. He had Tara lie on her side with Kira behind her, spooned, but tilted so that their little twats were as close together as possible. Then he had them both lift their top leg in the air and hold it there. Bill dove beneath and he had one hand to arouse each girl. He altered use of his tongue between the two of them. Each girl experienced the rich pleasure of a finger rubbing her clit, and then about half the time the additional exquisite joy provided by a tongue.

"You think we can come together, Tara?" Kira panted.

"OK, how?" little sister asked.

"Let's tell each other how it feels and when we're getting close."

"It feels soooo good!" Tara said.

"But are you having that itching sensation?"

"Like the hungry one?"

"Yeah, that's probably it!"

"Not yet. But grandpa's licking my pussy and clit and it's going to."

"I'm just getting his fingers, but then I come easier than you do. You can have the tongue when you come."

Bill was amused and aroused by this talk. Would he be able to adjust his finger strokes of his two hands and his tongue strokes independently to give each girl exactly what she wanted?

"Ooo, it's like a glow from my cunt going down and up..." Tara reported.

"Yeah, I got that hungry itch now. It's almost there for me, are you close?"

"Pretty close. Press a little harder and slower, grandpa."

"Hurry! I'm trying to hold back."

"OK ... The waves are about to come."

"Oooo, it's so hard to wait... Come for me, Tara! ... Come! Come!"

"Yeah, here it is, mmmmmmm, oh God, it's on the edge, going over..."

"I'm over, here's the flood..."

"Oh grandpa!!"

"Oh grandpa!!"

Both girls screamed.

When they had both come down, Bill lifted his head. Tara's pussy was just a bit wet, but Kira's was really well lubricated. Wet with something thicker, something designed to ease the passage of a cock. He found it terribly exciting.

He rose and zeroed his rampant organ in on Kira's pussy area. She was still on her side but had let her upper leg fall as part of her post-orgasmic glow. He now lifted it again to hold her open and expose the part of her he needed.

Kira's pussy had become familiar with the fingers and tongues of sister and grandfather, but now it was introduced to the tentative attentions of a man's cock. It nosed against the flesh, against the clit and the peehole and the pussy lips to either side, but Bill naturally nosed it against the cunt opening where it belonged.

Kira looked on with interest. She welcomed friendly attention to her pussy.

Tara rose to her knees to see what was going on.

"Oh, Tara," grandpa said. "Talk dirty to me!"

Tara began, "You're going to shoot your stuff into her cunt?"

"Yeah, probably." His brainstem wanted to ram his cock up that cunt, no matter how small it was, and he wasn't thinking too clearly.

Bill made a tunnel with his hand and pressed it right up to Kira's cunt hole. His cock slid through, basking in the pleasure, and each time it poked out from the end of the encompassing hand it poked against Kira's cunt opening.

"Grandpa, come in her cunt! Sperm her up there! Shoot the jism up her pussy hole!"

He was close. On each stroke his tip pressed insistently against the little girl cunt opening. He pressed in farther, seeing the flesh push inward a half inch or so. He reached the point of no return.

"Sperm! Cunt! Sperm! Cunt! Sperm! Cunt!" chanted Tara.

Bill always felt an in-shoving instinct just as his first spurt was rising, and this time was no exception. His tip pressed harder against Kira than ever. Bill's tip felt the warmth of Kira's hot cunt opening just as the cum rocketed out the end, up inside, where it belonged.

"Ouch!" yelled Kira.

He was dimly aware that the girl was saying something, but his biology required him to hold his cock still as the remaining gobs of sperm pulsed up into the little girl's twat.

When the fifth one was tucked away, Bill realized that while he had intended to press in a little, to line up his slit to deliver his load right where he wanted it to go, he had pressed a lot harder than he had meant to.

"Oh, God, Kira, I'm sorry! Are you OK?"

She wasn't bleeding. Cum was drooling back out, of course. Bill hadn't torn her hymen or gotten even an inch into her, but her cunt opening tissues weren't used to being forced open even that much.

Kira turned on her back and looked at him with accusing eyes, but as they saw Bill's utter remorse and tears they softened.

"Does it still hurt?"

"No," she said. "But why did you do that?"

"It was the most amazing chocolate fudge, but it wasn't mine to take! I'm sorry!"

"It's cool how the sperm's leaking back out!" Tara said.

"You came inside my cunt hole!"

"Yeah," Bill said sheepishly. "My body wants to do that so bad. And my cock wants to be in even farther."

"Why?"

Bill caressed little Kira to comfort her in every way he knew, and she calmed and cheered up within a couple minutes.

He explained the facts of life. The girls listened, mouths hanging open to hear how babies were made by such a weird act. Most kids are grossed out when they find out how the man and woman connect their flesh to make a baby. Tara and Kira were shocked, but the gross-out factor was largely eliminated. They knew how good orgasms felt. They were used to male and female bodies rubbing against each other in a pleasurable way. They gave no special reaction to his confession that his predilection for younger girls was unusual.

One part was hard for them to imagine. They had never seen a woman's private parts in any detail, and they couldn't imagine how that huge cock could disappear into a girl's body.

"My body got confused and thought you were all grown up," Bill said, offering Kira the best comfort she had felt about the incident. He thought she was grown up!

---------

Bill was alarmed to wake up to the sound of his front door opening. There was little crime in the area, but anything was possible.

The footsteps came down the hall tentatively, then stopped.

"Who's there?" he asked, voice trembling.

"Allie," he heard her whisper.

He gave a big sigh of relief as she came through the door and over to his bed. They naturally had keys to each other's places.

It was almost completely dark. "Allie, what is it?"

She didn't speak, but he heard a rustling as her robe fell away. She sat on the bed and whispered, "Fuck me, daddy. Fuck me. I know it's sick, but..."

"Shhhh," said Bill. He didn't think it was sick, but he wasn't thinking much at all. He was out of his nightclothes within seconds.

It was almost completely dark, but he felt Allie kneeling on the bed, like a doggy, butt up in the air. As he got oriented his hand found her cunt easily. The external part was hot and slick, making it clear she was fully aroused.

Just as his tip nosed against her cunt opening and he prepared to shove in she said, "Mine's big enough. You can fuck me deep and hard!"

Bill grabbed her butt and plunged. He slid all the way in, surrounded by hot smooth velvet. Allie gasped. Within seconds she was coming; he could feel the strong spasms. Encouraged in every way, a few seconds later his organ grew harder and bigger, his tip widened, and he began shooting his gobs of cum right up inside his own daughter.

As his body finished its mating reflex, the two flopped onto their sides, Bill spooning against Allie's back. After a few minutes, Allie spoke:

"Oh, shit, what have I done?"

"Whatever it was, I did it too."

"I'm the one who got up, used my spare key to let myself in, and came to your bed. No one expects guys to resist when a woman wakes them up in the middle of the night presenting her rear end for the taking."

Bill had a little chuckle at that. "I guess I could claim I was fucking in my sleep."

After a bit, Bill said, "I think we both invited this. Hey, you put a secret camera in my bedroom!"

"I just wanted to check that you weren't hurting my daughters --which you were, this afternoon!"

"Well, you were a sneak about it! And besides, why did you keep all of the videos?

"Oh, Dad, I'm so bad," she said.

"And why did you say 'Do my baby, give it to her, fuck her!' while you were frigging yourself?"

"I never said any such thing!"

"Want to watch the tape?"

Allie was quiet. "I thought that sometimes, yeah, so I guess I said it, too?"

"Yep."

"You started all this, you pervert! Couldn't keep your hands out of the girls' panties!"

"I did keep them out! I offered to never see them again, right?"

"Yeah, but that would have been cruel, to deprive them of their granddad!"

"I assure you that if you surveyed mothers, 99% would say it was more important to keep a man's grubby paws out of her daughters' panties than to make them mope from missing their granddad."

Allie was silent a while. "Oh, shit," she said. "Oh, shit."

"Hey, it really is my fault more than yours. It's one thing for you to give permission, but I'm the one who was actually doing it."

"We're both perverts, dad."

After a while, Bill spoke, "There are two people who are innocent, though, Kira and Tara."

"Absolutely," Allie said. "Absolutely."

Within a few seconds Bill was aware that Allie was trying to suppress giggles. "What is it?"

"Nothing, nothing."

"You can't just laugh and then not explain!"

"I was just thinking, they sure do come like little sluts!"

Bill's first instinct was to Allie that was an unkind thought. But as he thought of the two of them begging for his tongue and shrieking, day after day, instead he found himself holding back laughter, then failing to hold it back, and soon the two of them were both laughing uncontrollably.

"Well," Bill said at last. "We know where they got it from! You!"

"Me?"

"Yeah, you!"

"You're hardly one to talk! And besides, I got it from you!"

"I guess so," Bill said. "I can't help myself."

And with that he rolled over onto Allie, nudging her legs apart.

Allie eagerly exposed her pussy for the taking. Within seconds Bill's hard cock slid into his daughter again, and the two of them started on a good old standard fuck. Cock in and out, pussy hugging it and smoothing the action with thick fluids. Allie jiggled on the bed as Bill bumped her deep with his insistent thrusts.

"You are such a pervert, dad, raping your daughter!"

"Raping?" Bill asked, and slid his cock out of Allie completely.

"No, no, get back inside me!" Allie moaned urgently.

"What do you say?"

"Please!"

Bill slid back in, and they both sighed with relief and continued the fuck.

"You conniving little slut, you! Accusing me of rape! Who was the one who used her emergency key, snuck into her daddy's bedroom and stuck her naked, dripping ass into his face?"

"Me! It was me!"

"And who recorded her daddy abusing her daughters, then watched the tapes while going wild with orgasms?"

"Me, dad! It was me! Fuck me harder!"

Bill picked up the pace, and soon enough the rock-hard prong deforming her pussy over and over again made her come. She moaned loudly, "I'm a pervert!"

Bill had enjoyed getting his daughter off, but he still had more fucking to do. He kept pounding away.

Two could play this game. "Dad, who wants to slide his hands into girls' panties? Who wants to see inside and watch the girls pee? Who wants to suck their nipples?"

"Me, Allie! It's me! I'm a pervert!"

Bill banged into Allie with renewed vigor.

"And who wants to lick out their little pussies? Who wants them to lick his cock so he can come in their mouths?"

"Me! I'm so perverted!"

"And who wants to jam his prong up their little cunts? Fill a little girl's cunt with sperm?"

"ME!" Bill shouted, and rocketed his cum up inside his daughter's cunt once more.

They lay in their second afterglow, lost in a haze of pleasure. Thoughts moved slowly.

"How do we keep from getting you pregnant?" Bill asked.

"You think of that only now, you irresponsible man?"

"I know that morning-after pills exist."

"Yeah, true enough. My period's due in like two days."

After a few moments, Allie continued, "I've sometimes wished I had another baby."

Bill said, "Huh?"

"Wouldn't you like another little daughter? Maybe you could get into her diaper with your tongue -- pervert!"

"Oh, don't tempt me. You'd probably pass out coming watching a tape of that -- pervert! How serious are you? You don't want a baby with two heads, do you?"

"Nah. But I've thought about going to a sperm bank. Probably silly, though, since I've still got to get my career going."

There was more silence.

"I guess we could do this together, all four of us," Bill said.

Allie started. "No, dad!"

Allie's tone got Bill's attention.

"Huh?"

"Dad, I don't want my girls to know anything about this, ever, OK? They can't know their mother is a pervert."

Bill figured it was a reasonable request, though the two of them had just been having such fun wallowing in perversion.

"OK."

"Promise?"

"Yeah, I promise."

"I've got to get back upstairs in case they wake up," she said, and left after a lingering hug.

---------

The next night at midnight, Bill used his emergency key to let himself into Allie's.

Sitting on the side of her bed, he spoke. "Hi, Allie."

"Hi, dad."

He wasn't sure how a day would have changed Allie's mood. "Ummm, can I lie next to you?"

Allie thought a moment. "Do you think it's a good idea?" She was trying to suppress a smile.

Bill said, "Yeah, I do. We're perverts, remember?"

Allie made room for him. He moved his hands over his daughter and sucked her breasts. She responded with pleasure. Sliding his fingers between her legs, he was surprised to find that she was quite wet.

"Oh, my," he said. "You're not like this all the time, are you?"

"No. What took you so long? I've been watching tapes."

"Oh, which ones?"

"The one where you ate out Kira while Tara gave you a blow job."

"We've done that a bunch of times."

"It was the first time you came in Tara's mouth."

"Oh, right. And the others?"

"Yesterday's. It is so hot. Just so very hot. Why do I come when my baby girl cries, 'Ouch!'?"

Bill smiled. "Because you're a pervert?"

"Yeah. But you're a child rapist!"

Allie wrestled him onto his back and lowered herself onto his cock. She began an insistent, decisive grinding motion, taking his cock far up inside but concentrating much more on just how her outer pussy pressed against Bill's pubic bone. "You nasty man, you sick man!"

"Fuck me, you little slutty pervert," Bill countered.

Allie's breath came quicker, "Unload all your ... sticky cum ... from your ... nasty prick ... up your slut daughter's ... cunt!"

"Pervert! Unnnhh!" cried Bill, surging up inside his daughter and unloading his balls just as she asked. He was an obliging father.

---------

Once father and daughter let their inhibitions go and happily labeled themselves and each other as perverts, their lust was boundless. Allie went on the pill. Bill snuck up to her bedroom each night after Kira and Tara were asleep. After locking the door to be sure the girls would not discover them, they fucked like rabbits. An hour at a time, from every angle. Tongues brought ecstasy to erogenous zones. Cum spurted onto Allie's chest, her pubic hair mat, into her mouth, but mostly, time and again, up her cunt. Allie's clit glowed and brought her body to convulsions over and over, mostly aided by Bill's hard dick burrowing up into her depths.

Sometimes in the morning Allie left a few extra minutes before heading off to school and headed down to Bill's to visit. She wasn't seeking physical pleasure, usually. She just wanted to get fucked soundly and have the reassurance of another load of cum up inside her. She usually knelt on his bed while Bill slid into her from the rear and pounded her. Within a minute he pulsed her cunt full of more cum as he wallowed in ecstasy. Feeling her womanly need met, Allie put herself back together and was out the door in seconds, after a quick kiss.

---------

"It's OK, Tara, you don't have to do that today," said Bill.

Tara stood before him, confused, pants and panties around her ankles, presenting her little pussy for Bill to fondle.

"We can go to the park anyway."

"What happened, grandpa? Did I do something wrong?"

"No, sweetie, you didn't do anything wrong, I just don't feel like it much today. You don't really miss the stuff with my peepee and your peepee, right? I used to have to bribe you with candies."

"But I like it now."

"Well, maybe later, let's see."

Tara pulled herself back together.

Kira wandered in, ready to join in the fun. She was wearing her cute white dress with nothing underneath -- Bill knew, because that configuration was one of his favorites.

"Grandpa doesn't want to see us naked today, either," Tara said.

Kira nonetheless stood with her back to him and slowly lifted the dress, exposing her butt.

Bill still found it an alluring sight, and his cock twitched a couple times. But he was giving it a workout with Allie several times a day, and it couldn't respond fully.

Seeing his polite smile instead of the usual smoldering lust, Kira asked, "But you used to like it so much, what happened?"

"Oh, things just change. I'm not sure it's good for you, all this stuff we're doing."

"But we love it!"

"True, but not everything you love is good for you."

---------

Allie had just gotten done riding her father hard. Their genitals were still plastered together while Bill's dick softened inside her. She held herself up with her hands, her breasts hanging down towards him gracefully.

"Kira says you didn't want to see her little pussy these past couple days."

"You keep my cock pretty busy!" Bill said.

"You like a real woman better than little girls?" Allie teased.

"Maybe," Bill said, not entirely sure himself.

"In any case, dad, I still think you owe them at least your tongue. They're used to getting at least one solid orgasm every day, and I think they deserve it."

---------

"Oh grandpa, a little harder!" Tara moaned.

Bill licked a little harder as he stroked his tongue up and down her pleasure button.

Kira was attending to Bill's cock. Now she had engulfed it in her mouth and was gently sucking and licking with great skill, but his cock was softening.

Tara's juices were seeping from her baby cunt. Her clit started to stiffen, almost imperceptibly, and her squeaks got higher pitched. Bill knew from long experience that she was close. On a whim, he dug his fingers into her hips hard as he held her pelvis up off his face.

"Grandpa! Ohhh! Unnnhhh!" the little tyke screamed.

Bill kept licking, wanting to make sure the pleasure stayed intense all through her orgasm. After many seconds she pulled away and flopped down beside him on her back, chest heaving. He'd have Allie find that on the video later so they could watch it together, and he was pretty sure the mother would love seeing her daughter so thoroughly pleasured.

"But your cock is soft," Kira said with disappointment.

"It feels great, even when it's soft," he said. "Your turn!" he said, playfully wrestling the older girl onto her back and shoving her skirt up to reveal the perfect girl parts.

Kira giggled and welcomed the pleasure as Bill's head approached. He made sure to rub his scratchy cheek against her thighs, something he had noticed made her squirm especially. He started licking above her slit, and the innermost inch of each thigh, enjoying the crease where leg ended and crotch began. He inexorably moved inward as Kira purred, using his fingers to gently rub just outside her outer lips, moving them up and down. He made the barest brush against her clit to tease her, then took an excursion down to her cunt hole. He ran his tongue all around the opening and pressed in just a little.

"Can you press in more, grandpa?" Kira asked.

Bill dutifully pressed in a bit more.

"Even more?" she asked.

This was new territory, but he kept pressing until his tongue was pretty fully extended, and he felt its tip actually inside her cunt a little. After going in and out a few times, eliciting an extra moan or two from Kira, he started to return to Kira's clit.

"Even deeper?" she asked.

"That's as far as my tongue reaches," Bill said, before realigning his tongue to give her clit what it liked best. She started moaning and sighing as she often did, but then spoke.

"Grandpa, could you put your finger in?"

"It's not going to fit."

"Maybe, but let's try," she said.

Bill lifted his head and brought his little finger to her opening.

"But don't stop with my clitty!" Kira complained.

Bill saw how he could make the geometry work. With his hand up under his chin, Bill pushed his little finger at his granddaughter's hole and felt it go in a little, as he brought his rough tongue over the girl's most tender spot, her teeming nerve endings screaming pleasure to the little girl's brain with each wet stroke. Meanwhile he pressed his finger into her hole, in and out. Kira's pussy was downright wet, Bill noticed, and it smoothed the intrusion of his finger. Remembering how he had hurt her that one afternoon by pressing his cock into her too much, he was very careful. But on each stroke it went in a millimeter more, and just short of his second knuckle, Kira managed to interject among moans, "That's deep enough."

Bill pulled the finger out, but Kira said, "No! Put it back in." When Bill did, she said, "Back and forth, now!" So Bill matched rhythm of tongue with finger, and Kira's pleading "Mmmm" and tiny pelvic wiggles showed her pleasure.

He felt Kira's clit engorge a little extra, like Tara's, maybe more this time than ever before. Bill flicked his tongue faster but more lightly at this point, guaranteed to send the little girl into heaven. He realized he had stopped pressing in with his finger, to concentrate on the exact motion of his tongue, which he knew made the difference between an OK orgasm and an exquisite one. She screamed. When Kira wriggled to indicate she had had enough, he pulled back and lay on his side, cupping her recovering pussy with a friendly hand.

"You sure are hard now!" Tara said, and took his dick into her mouth. He realized he was not just hard but extremely aroused. As soon as he thought of Kira's little tunnel eagerly receiving his little finger, his body seized and he started spurting in Tara's mouth, the little girl flicking her tongue as she had been taught. Bill realized he had given a loud groan to accompany the magnificence of the pleasure he had felt. When Tara finally popped him out she exclaimed between swallows, "Wow, that was fast! I barely got you in my mouth before you started coming! Kira, he was so fast -- Kira, you're bleeding!"

Sure enough, a little bit of red blood was oozing from her pussy.

"Grandpa, what is it?" the girls asked at once.

Bill was chagrined to realize what had happened.

"I think it's OK," he said. "Does it hurt?"

"Not much. Maybe a little," Kira replied.

"What happened?"

"Girls' little vaginas have a flap of skin that protects them a little, and the first time they have sex with a boy, it breaks as the penis goes in. I guess it can break too with just a finger," he continued.

Bill sighed. First he had hurt his poor little dear with his over-enthusiastic cock, now he had taken the symbol of her virginity with his finger.

Kira sounded a little panicked as she asked, "Does it keep bleeding? Does it bleed every time?"

"No, Kira, no. It shouldn't bleed any more."

"OK," she said, relieved. She wiped the blood away with a tissue, then wriggled down to snuggle against Bill's one side while Tara snuggled against the other.

---------

An equilibrium returned. Bill used his tongue to give his two little granddaughters their pleasure just about every day. He got hard most times, at least for a little, but while he adored their little girl sexy antics and efforts to please him, he rarely came.

He refused Kira's entreaties to enter her with his finger any more.

"You said your body wanted to get inside a cunt more than anything in the world!" Kira said, repeating an argument they had often.

"Yes, it's true!" Bill said with some exasperation. "But my cock is way too big, and your pussy is way too small, and it's just not going to work!"

"But your finger might work!" she said.

"It made you bleed before, remember?"

"But you said my pussy gets used to it!"

Bill sighed. "Listen, do you want my tongue, or not?"

Kira teared up a little, so Bill brought his face to hers to nuzzle and kiss -- something they didn't do as much as they should, he realized. Within a few minutes, Kira's pelvic wiggles showed she was ready for her granddad's tongue.

Meanwhile, father and daughter lusted for each other every evening and most mornings. Full-grown male and female bodies came together in the ancient union, fully satisfying to both.

As part of foreplay in the evenings, Allie often wanted to watch a video of her daughters being brought into ecstasy by her father, and it usually brought her to full readiness. Bill experimented with using his tongue on his daughter, but although she did come a couple times that way, she preferred his dick up her cunt. Physically it felt just as nice, and psychologically it just felt right in the way a tongue never did.

Bill reflected that much as he had loved his wife, their sex life had never been anything like his was now. A man expects that fulfilling his sexual hunger with his wife will produce offspring, half of them girls. He doesn't expect that his girl might grow to beg to fulfill her sexual hunger with him, nor that it will extend downward one more generation.

---------

"Grandpa, I have a surprise," little Kira said one afternoon. Tara giggled, apparently in on the secret. Kira was wearing a pink miniskirt and white knee socks, and a silky blue top he didn't see on her very often.

She settled herself back in the middle of his bed, legs spread wide with the miniskirt scrunched up out of the way. She had a paper bag with her, and from it she now produced a large carrot.

With her eyes glued to her grandpa's face, and grinning, she placed the big end of the carrot right at her pussy hole, and started pressing in. To Bill's amazement, her pussy spread out smoothly to take in the whole girth of the vegetable. Bill noticed the carrot was slick with something, then he smelled it: butter. Kira's fingers kept pressing, and incredibly, the carrot kept gliding up inside her. Kira pressed it in and out a few times, seeing that her grandpa fully understood the significance of what he saw. She then slid it out and tossed it aside. He saw that it was maybe a little smaller than his cock, but not much. She then crooked her finger at Bill with a "come hither," motion.

Bill stammered. "Kira, I ...." She just looked at him.

"You could have hurt yourself! Does your mother know about this?"

"No," she said, scornfully.

Meanwhile Tara, giggling with excitement, was working on the front of Bill's pants, attacking button and zipper. The zipper was kind of stuck, and her increasingly forceful pulling was not helping. Absent-mindedly, he finished the job she had started. The two girls smiled at the completely rigid cock that sprang forth.

"Kira, I don't think... You're too young."

Kira shook her head, beckoned him over, pointed at her pussy a few times in case there was any doubt what she wanted, and then reached out her arms to hug him.

Mesmerized, Bill approached. He lowered his body over hers. With obvious excitement, she guided his cock to her opening. Bill pushed. The girl's own wetness with a trace of butter eased the penetration. She was tight, but there was no question that he fit. Bill kept pushing, and just like the carrot, his cock went in farther and farther. When he was in all the way, reflexes took over. He pumped in and out, gazing at his beautiful granddaughter's face, brimming with excitement, and after ten strokes his innards had felt all they needed to feel. Kira's adult-sized pussy already made this seem like a dreamland, and now his ecstasy seemed to come from dreamland too. Cum rocketed out the end of his prick, right up tight within his young granddaughter, half grown with flat chest and hairless tender pussy. Bill gasped, his face scrunched up in ecstasy. Another jet of cum rocketed into Kira's shy, virgin hole. His prick kept pushing in and out urgently as more spurts graced Kira's innards.

Dazed and spent, Bill pulled out and flopped onto his back beside her.

Tara giggled. "He shot it into you, see! It's running out onto the sheet! He came up inside you!" the younger one said, fascinated.

"I'm sorry, Kira. I shouldn't have done that! Oh, no..." Bill moaned.

"Why not?" asked the triumphant Kira. "I'm so happy! You wouldn't believe how happy you looked."

"Yes, yes, I would believe it," Bill murmured in sheepish embarrassment.

"Isn't that what you really, really wanted?" Kira asked.

Bill could only nod, confused.

"Now you know what you have to do for me?" she asked.

"What?" asked the contrite Bill.

"Lick my clitty, slow and good," she said. Bill nodded and began to move into position. "But use your finger too. Your big finger, the middle one. And shove it in all the way!"

Bill readily pleasured his granddaughter, doing his very best to give her the best orgasm she had ever had. She shrieked.

Bill drew back his head to see the little girl's pussy, engorged and slick.

Bill's cock was hard again. Timidly he heard himself asking, "Kira, um, I'm sorry, but, um, can I go in again?"

Kira surfaced from her post-orgasmic bliss to grin at him, "Yes! Yes! You can! Go ahead!"

Consumed with lust, Bill mounted his granddaughter and slid in again. This time her cunt was hotter and wetter. It invited a slow, gentle fuck, and Bill was in heaven doing just that. Kira was flushed in the wake of her own orgasm and smiled at him.

"Do it to me, grandpa," she said softly. "Do it to me!"

Tara had been wriggling around this way and that, and she was looking intently where Bill's shaft pumped in and out of her sister's little twat.

"It looks so weird!" she said.

"Shhh!" Bill admonished gently, continuing his loving slow Kira-fuck.

After ten minutes of holding himself up high, Bill let himself down, hairy chest against smooth girl chest, but still supporting most of his weight. Kira wrapped her arms around him for a gentle hug.

"When do I get my turn?" Tara asked, trying not to whine.

Kira spoke, "Tara, why don't you whisper into grandpa's ear just what you'd like him to do?"

Tara shrugged, and leaned over against Bill's ear.

"Grandpa, why don't you finish up and shoot your stuff out?"

"Where?" Kira asked gently.

"Up inside? Up inside you?" Tara asked, still not quite believing this was what Kira wanted.

"Yes, Tara, up inside me. Way up inside me." Then she mouthed the word she wanted the girl to use.

Tara returned her lips to Bill's ear. "Grandpa, would you please come up inside my sister's cunt? Way up deep inside? Shoot all your goopy stuff up in her cunt?"

"OK, Tara," Bill panted. "Kira, is that what you want too?" he managed to puff, preoccupied with intruding into her cunt over and over.

"Yes! Yes! Yes!" Kira pleaded.

"Ooooohhhh," Bill moaned, spurting more gobs inside his granddaughter, holding his dick up tight so they went way up inside her, as requested.

"My turn!" Tara reminded Bill.

"Yes, just give me a moment," said Bill, savoring the sensation of his cock deep inside of Kira, having delivered its load but relishing a bit more warmth and wetness.

He then tried to give Tara the best little orgasm he could, and did a decent job of it, but Kira's pussy was on his mind. As Tara lay panting, he was hard again, and had a mischievous thought.

"OK," Bill said, and lifted himself up, starting to lower himself on Tara -- the little one.

"No, grandpa!" she said.

"Just kidding," he added as soon as he sensed her alarm. Instead, he zoomed over to Kira, who was surprised but entirely willing when she caught his drift. It wasn't hard to catch his drift as he approached with a rigid prick, pushing her gently back on the sheets.

"Grandpa, you dirty old man!" Kira said playfully.

Bill let himself go, and within a minute he surged up inside his precocious cunt-stretched granddaughter for the third time.

As they dressed again, Bill said, "Don't tell your mom about this, OK? Let me tell her."

"Sure," the two girls echoed. They hadn't volunteered much to their mother since the earliest days of their escapades with their grandpa. They liked that it was kind of private.

---------

Bill walked into Allie's bedroom at 9:30, long before his usual arrival time.

"You're not going to believe this," he said quietly.

"What?"

"Call me up before you watch the tape." With that he disappeared, waiting until Allie was sure the girls were conked out for the night.

Allie's eyes went wide when she saw the carrot, and wider when she saw it disappear entirely inside her older daughter.

Bill watched for any brewing storm of emotion as the tape showed him taking her daughter's virginity and lasting only seconds before he came. With a surreptitious glance he saw that Allie was moving her pelvis almost imperceptibly and that her panties were wet. Allie skipped ahead to see the other two fucks.

"You dirty old man!" she said, though he could make out her teasing tone.

"So now, fuck your daughter!" she said, sliding her body in to make out with Bill.

"Yummmm!" Bill said.

But Bill couldn't get hard. A little blood pulsed into his dick, but then it would soften again.

"Hmmmm. I'm getting on in years, and I've already come three times today!" he said. "Plus this morning."

"OK," Allie said, gamely.

Bill offered to use his tongue on her, but Allie turned down that offer. She was OK with his using his fingers, but while she seemed to feel good, she didn't persist long before giving up trying to come. They parted.

---------

"Kira, Kira," Bill said, shaking her gently.

"Huhhh?" the little girl said groggily.

"Kira, can I... please?"

Bill's hand was under the covers and zoomed in on Kira's naked crotch beneath her nightshirt.

"Again?"

"Yes, dear," he said. "I ... I really need it."

"I'm sleepy," she said.

"I know, I'm sorry, but ... please?"

"Oh, grandpa..." she said. "You already woke me up once tonight."

"I'll get you anything you want. Is there anything at all you'd like? Another necklace?"

Kira was silent.

"Well, if you think of it later, just let me know, OK?"

Meanwhile, Bill's hand had been busy under the covers. Kira was groggy, but her genitals responded automatically to Bill's caresses.

She pulled the covers down and spread her legs wide.

Bill eagerly lowered himself onto her and slid into that warm, wet cavity between her legs, the only thing he thought of day and night, or so it seemed.

Since he had just shot inside her a couple hours before he was not set to come right away, but he thrust away with urgency. The adorable little girl's body lay below him, incredibly sexy. Her eyes were closed and her face slack with fatigue, not ecstasy. He saw her dozing off. That was OK. He just had to keep going. He needed to push into her, and he needed to come in her. His body didn't respond quickly, but eventually his biology rose to the occasion, and he pressed in gently but deep with a soft "Aaaaah." A bit of semen dribbled up into the girl's cunt, already wriggling with his previous loads.

He pulled out and slumped. "I'm so sorry, Kira, I shouldn't have," he said, but she was asleep again. Guilty, satisfied, tired himself, he tiptoed out, locked the door behind him gently, and returned to his own apartment.

He woke a few hours later, well after dawn, hearing the girls walking above him, getting ready for school. One of those girls was Kira, and as she walked she naturally stepped with one foot and then another. Imagining looking up through a glass ceiling, he saw a leg attached to each foot, and following those two legs up to where they joined there was that opening. He needed to get into it again.

It had been just five days since he had first penetrated the pussy that Kira had so surprisingly stretched out for him. Three times that day, two the next, and only one the day after. She had said she didn't want any more. But that night, only having fucked the sweet young pussy once that day, he had used his key to sneak into Allie's in the middle of the night and then into Kira's room. Surprised by the novelty and the naughtiness of doing it right in her bed in the middle of the night, Kira had happily spread her legs for him. The next afternoon he had withheld the oral sex she craved until she had let him do her twice, but even so he had come to her room in the middle of the night. And just the day before she had let him do it just once, and seemed kind of moody about it. And last night he had come to her once, and she had received him readily, but then he had gone up a second time. This was getting out of hand.

He stumbled through his morning routine as the girls went through theirs upstairs, but he couldn't get his cock to subside completely until he saw Kira leave and get onto the school bus. Until that happened, he had imagined ways he could coax her into his apartment. It wouldn't take long, he would promise. She would hardly notice, he would claim.

He had turned off Allie's camera after that first day, explaining that he just didn't feel right about it, somehow. At the end of the second day he had managed to get it up and come inside Allie. Although they both had an orgasm, there was a tension. They weren't going at each other with total abandon. Then he had suggested they take a night off, and then when he did come up he had had trouble with his erection once more. Allie had had one orgasm, but he softened before he could come.

---------

"No, grandpa, not tonight," the sleepy Kira said.

"But Kira, we didn't do it this afternoon, either!"

"I don't feel like it, grandpa."

"But Kira, you wanted it so much. You stretched yourself with that carrot!"

"I know I did. That's what I wanted then, but now I don't."

"But it means so much to me!"

"I know, but I don't want to."

"Oh, Kira," Bill said, his hand frantically massaging between the girl's clenched thighs. "You always like it!"

"No, I don't!"

"Oh, you'll see!" Bill said, frantically. He lowered himself onto her and pushed her legs apart with his knees.

"Grandpa!" Kira said, raising her voice a little.

"Shhh!" Bill said. "Mom might hear you. Then we'll be in trouble! I'll be quick, I promise!"

Kira pushed against his chest. Bill ignored her feeble resistance.

"No, grandpa, no!" the girl whimpered.

In the face of her grandpa's forcefulness and the sense that she could do nothing to stop him, Kira sighed and let her legs be pushed aside. Bill didn't look at her. He felt for the pussy opening that was the center of his world. His raging cock hadn't been there in over 24 hours. And now he felt himself relax as the cock found its way home; the world was restored once more.

The actual fucking was still to be done, and he did, gently but urgently, aware that Kira was not very enthusiastic about this. But as he came, he pressed in extra deep, his entire day's worth of cum surging into the little girl in big, goopy shots.

"Oh, Kira, now that wasn't so bad, was it?" he asked.

He was alarmed to see that the girl had a stony face. As he came down from his high, he realized what he had done.

"You really didn't mind, right?" he asked, trying to deny it. When she didn't respond, he moved to caress her face. "Oh sweetie, I'm sorry," he said, but she angrily swatted his hand aside.

"Go away!" she said firmly, turning onto her side away from him.

"Oh no, I'm so sorry, honey," he said, but when she didn't reply further, he went back downstairs.

He didn't sleep. There was a word for what he had just done. He didn't like to think of it. It was called rape.

He was in trouble psychologically, he realized. His obsession was out of control, and he needed help.

But first, he knew what he had to do. He debated waiting until morning, but he knew it was just too important.

Allie answered on the first ring, sounding not the least bit sleepy.

"Allie, I just made a huge mistake. I did something awful."

"And what would that be, dad?" his daughter answered. He sensed something steely in her tone.

"I can't believe it Allie. I just ... I just raped Kira," he said. "I can't believe it, I don't ever expect either of you to forgive me. Can you talk to her? Before she has to come to you?"

"That's too late, dad. She's already come to me."

Bill's heart sank. "Oh shit," he said under his breath. "Tell her I'm so, so sorry. And I'll do whatever you want. If you want to go to the police, I'll plead guilty." He felt dread at that thought, and he hoped there would be some way to patch this up short of that. "I'll move out, I'll go far away. You can have all my money..."

Allie interrupted. "Yeah, dad, you fucked up bad," she said. He could tell she was restraining herself. "But let's count to ten. Promise me one thing?"

"Sure, whatever."

"You will not go near either of them without my permission."

"Of course not. I wouldn't have dreamed of it..."

"Good. Let's talk later."

---------

"Come in," Allie said.

Inside the door, Allie was standing. He noted she was dressed in one of her serious professional suits. Bill was in jeans and a T-shirt. He had felt that anything more formal would be laying claim to more dignity than he was worth.

He immediately fell to his knees, head down. "I'm sorry," he whispered. "I'm so sorry."

"Oh, get up, and let's go sit down."

In the living room, Bill began his story. "I'm addicted to her, Allie. That's what happened to me. There's a chapter of Sex and Love Addicts Anonymous near here. I've been looking on the web for ideas. And I think there are some therapists that might help. I'll also go away. Whatever you want."

Allie put up her hand to reclaim the floor, and thought a bit before she spoke.

"Remember, we're both guilty up to our eyeballs to begin with. Imagine going to the police and having Kira say that while she was initially happy to have her grandpa fuck her seven-year-old self over and over again, she decided she had gotten tired of it. And that her mom had said that anyone could do anything as long as it was OK with them."

Bill considered saying he wouldn't ever reveal Allie's part in it, but he realized that was no good. Kira couldn't hide her mother's complicity in their illegal activity.

"Kira's a smart cookie. Within an hour of being raped," Allie flashed in anger as she said that word, "she told me some insightful things. She knew that you were only doing what she had begged you to do so many times. She knew that you weren't yourself. She heard you say how sorry you were. She hates the idea she couldn't see you any more."

Allie smiled and looked at her father.

"But make no mistake about it, she was also very angry at you. However, she hates the idea that Tara would know anything was out of the ordinary. And that of course means that she wants you to go on meeting like you have all along. My slut doesn't want to give up those magnificent orgasms you give her," Allie continued with a little smirk.

"She doesn't even want to give up having you fuck her," Allie said.

Bill was surprised at that. "I guess abused children often identify with their abuser," he mumbled forlornly.

Allie waved her hand. "Sometimes, sure. But in this case that's PC crap.

"You did one big thing right, dad. One huge thing. You called me up, knowing you had really fucked up, and didn't just hope that Kira wouldn't tell."

Bill nodded. He hadn't known whether the little girl would tell or not.

"So here's what we're going to do. I'm going to change the locks on my place. You are not going to change the locks on yours."

Bill nodded.

"And if she's willing, and I think she will be, I think you and Kira should sit down and talk when she gets home from school this afternoon."

"Just the two of us?"

"Yes, just the two of you. I'll be nearby, of course."

Allie changed her tone, slightly. "You realize this has nothing to do with being perverted, right?"

"Absolutely right," Bill said instantly. He knew exactly what she meant. All their fun and games rested on consent. Sex with children and incest and voyeurism were one thing, but sex against a person's will was no less a crime in their eyes than anyone else's. They disagreed with society on whether children could consent to sex. But they disagreed not at all that a child who said "no" was not consenting, and ignoring her decision was a serious crime called rape.

---------

"Hello, Kira."

"Hi, Grandpa, how are you?"

"I'm OK, sweetheart. How are you? That's the only question that really matters to me."

"I'm mad at you."

"You should be. I did a very, very bad thing."

"I said no! I told you not to, and you did anyway!"

"I know. It was terrible of me."

"Mommy says I never have to do anything you say. She says I could scream at you, and even hit you -- if I didn't hit you too hard."

"You may, Kira." Bill got down on the floor and lay on his back. "You can kick me too if you want."

"Mom says you were kind of sick that night, like I thought."

"I was, you're right."

"And it's because you were sick that you did it?"

"Yes, though it was still my fault, even though I was sick."

Kira was quiet a minute. "I don't want to hit you or yell at you," she said.

"OK," Bill said.

"You promise never to do it again?"

"I promise, Kira, I promise. That might not be enough, though."

"Why not?"

"Sick people can't always keep their promises. I've got to make sure that never happens to me again. I have some ideas for how to do that, though."

"I trust you," she said, quietly.

Oh, the sweet child, Bill thought. She probably could trust him, given who he was, but she shouldn't be so sure of that.

"There's one thing I want to do, though," she said sternly.

"Anything," Bill said.

"Let's go down to your place, just the two of us."

Bill got uneasy. "If your mom approves, OK."

Allie readily gave her approval, though she fixed him with an expression he decided might be called wary trust. The camera was on in his bedroom.

"Let's strip," she said. That was easy enough. Bill didn't have any trace of an erection, and she gave a curious glance at that.

"Now let's go to the bathroom. OK, now you lie in the bathtub."

Lying on his back, Bill had no idea what was coming next.

Kira got in the tub and squatted over his cock, which was starting to stir in spite of himself.

"You said I could do anything, right?"

"Yes, Kira, anything," Bill said.

Pee streamed forth from Kira's nether lips, splattering Bill's cock and soaking his pubic hair.

He gave a startled expression, and Kira giggled.

"I'm not going to wipe myself, but I'm going to lie here, and I want you to make me feel really good. Really, really good."

Bill smiled and as Kira lay back, he began arranging himself to get access to her little twat. As he approached, Kira said kind of shyly, "One more thing, if it's OK."

"Anything's OK, Kira," Bill said, although hoping that there weren't going to be any feces involved.

"Could you, um, could you pee on me?"

"Really?" Bill said.

"Yeah, down where my cunt is."

"OK," Bill said, a little confused. "If you're mad at someone, peeing on them is one way I could see of letting it out, but having them pee on you wouldn't usually do that."

"Oh," Kira said, a little shyly. "I didn't pee on you because I was mad at you, I've just always wanted to, and was afraid to ask."

Bill smiled at that, and Kira smiled back. Her smile and the relief of tension started turning his half erection into a full one quickly, the angle of elevation rising with each pulse of blood.

The little naked girl lay back in the tub, and the man knelt above her.

"There's only one problem, Kira. I can't pee when I'm excited."

"Why not?"

"It's just the way guys are made. When a man's trying to give a woman a baby he's got to put the sperm in her, but not pee. So there's this reflex so he can never pee when he's hard."

"So how do we get you not excited?"

"Hmmm. I could think of yucky things. Or you could tell me how mad you really are at me."

"Grandpa, you stuck your thing in me and I didn't want you to!"

"I know, Kira, I was very bad." Bill knelt, eyes closed, and nodded. He needed his eyes closed because the sight of the girl laid out below him would make him hard.

Kira spoke with sudden passion, "You can never stick it in me if I don't want! OK? You can never touch me any way if I don't want!"

Bill nodded. "You're absolutely right," he said.

"And you should make sure you brush your teeth before we get all lovey-dovey. Sometimes your breath smells yucky!"

Bill's eyes shot open. "Oh, I'm so sorry, sweetie! Why didn't you say anything before?"

Kira looked a little confused. "It's not nice, right?"

Bill supposed you had to learn that intimate relations entitled a person to greater say over another's hygiene. "Never mind," he said. "I'll just make sure to always brush my teeth."

One effect of the surprise Bill felt was that his erection had subsided completely.

Seeing that, Kira whispered, conspiratorially, "OK, now pee on my pussy."

"Are you sure?"

"Yes!" she whispered, and used her hands to hold her pussy lips open.

It took a few seconds to overcome his long-ingrained aversion to peeing anywhere but in a toilet, and his stronger aversion to peeing on anything he valued or especially anyone he loved. Still, Bill peed. His yellowish stream splashed down inside Kira's pussy lips. He had plenty of pee, so he got her inner thighs as well. The tiny splattering drops went every direction, including into the young girl's face.

Kira giggled as she squeezed her eyes shut, then laughed. As Bill's stream slowed down, he did what males always do to get the last little bit out. He squeezed, and another little shot of pee spurted out onto Kira's privates, making her giggle. He squeezed again, and another spurt came out. Kira laughed hard. At last the final pee was out, and Kira's laughs subsided to a mere smile.

"Now can I kiss your pussy?" Bill asked.

"Yes," Kira said sternly.

Bill gladly lowered his head, and although pee wasn't at all his favorite beverage, there were just a few drops left, and he soon enough had worked his tongue into the girl's private parts. But he couldn't get the best angle, and Kira was lying in a cold ceramic tub, not a nice soft bed. Bill had an inspiration.

"Want to take a shower together?"

"Sure!" Kira replied eagerly.

Soon the warm water had flushed the pee away, and man and girl were basking in the warmth of the shower water. Bill started to wash the girl, but she wasn't terribly interested.

"I still want you to make me cum!" she said.

On an inspiration, Bill positioned Kira so warm water was splashing all over her midsection, then knelt and, pushing her gently against the wall, started wiggling his tongue between her pussy lips.

Kira enjoyed the novelty of it for a few seconds, then said, "Let's go to your bed, like always!"

Toweled dry, Kira lay on Bill's bed while he applied his tongue to her heavenly, exquisite girl parts. She asked him to use his hands to rub her nipples, something she had never suggested before, but a delightful variant for him too. He applied his tongue with greater care and concentration than ever before, somewhat easier because Tara was not there to distract either of them. And Kira cried out as she never had before, and kept going for nearly a minute before having Bill stop.

"Now," she heaved, "Fuck me!"

"Are you sure?" Bill asked.

"Yes! Please. And as quick as you can, OK?"

He eagerly glided into her cunt, seemingly smoother, hotter, and tighter than ever before. He gently pushed his way back and forth until he was in all the way.

"Can you go faster? Harder?"

Bill couldn't believe his ears. He went faster, fucking with abandon, eyes squeezed tightly shut. And his body then exploded, rocketing ropes of creamy cum up inside the cunt of the girl, now not just willing but eager. Of course, it felt so much righter and better this way.

Bill wasn't quite down from his high when Kira said, "You know, it feels good for me that way too!"

"Yeah," Bill said. "A lot of grow women come that way too."

"Are you saying I can't?" Kira challenged.

"No, not at all," Bill answered, remembering Kira's impressive carrot trick in response to the last challenge she had set for herself. "We could see. You could tell me just what feels better and worse and we could work on it. Know what else we can do?"

"What?"

"I can lie on my back and you can push yourself down on me. Women sometimes really like that."

Kira's eyes glowed with the excitement of something else new to try.

---------

Tara got her equal time that evening. It became part of a new pattern where mostly Bill spent time with each girl separately, though they reassembled as a trio sometimes.

Bill learned cognitive therapy techniques to keep his sexual desire from getting out of control, and started seeing a therapist regularly to make sure.

Within a couple weeks, during one of their trio sessions, Tara surprised them both by producing her own buttered carrot and showing how it fit into her smoothly. Bill eagerly fucked his younger granddaughter to the hilt. He started feeling the same unbridled lust for Tara he had for Kira, but controlled and tamed it with his new techniques.

Allie forgave Bill more slowly than Kira did. She had been astounded to learn that Kira had begged her grandpa to fuck her within 24 hours of having raped her, but she judged her reaction was genuine and it was what she truly wanted.

Bill listened patiently and humbly as Allie dressed him down, occasionally lashing out with anger. But within a week, her lust returned. She had masturbated frantically to the sight of her dad fucking her daughter. And within a week she was desperate to be fucked herself. Bill enthusiastically complied.

Although there was a lot of variation, on average he fucked Tara, Kira, and Allie once a day each.

The two girls were slightly different from each other and very different from their mother.

Kira loved riding her grandpa and learned to come that way, though she usually then turned over and had him fuck her from the top to maximize his pleasure. For her own orgasms, she still loved his tongue best, and he adored pleasuring her that way. She still loved peeing on her grandpa and being peed upon now and then.

Tara wasn't into pee, which suited Bill just fine. What Tara loved was being done from the rear, doggy style. For her own pleasure, she adored Bill's tongue. But she wasn't satisfied with a single orgasm. She could move from pleasure to pleasure, peak to peak, for an hour or two at a time. Although Bill had plenty of time, his tongue got tired, so he had to work on tongue stamina. Tara also needed time to do her homework and the rest of her life. She had to deal with a less serious version of her grandpa's problem: sex addiction. She had to learn to make time in her life for other things. Eventually they settled on a limit of 45 minutes of sex a day for her.

What Allie and Bill liked best was just plain fucking, man to woman. He sucked her breasts a lot, since she was the only one of his lovers who had breasts. What turned Allie on more than anything was watching video of her daughters getting pleasured and fucked by her dad. To then have the experience completed by being fucked herself by the same dad was heaven for her.

Kira and Tara never suspected that their grandpa was fucking their mother, and they had no idea they were being recorded for their mother's pleasure.

The girls thrived in school, and made friends and participated in school activities. Allie finished her master's degree and got a good job as a software developer. Bill enjoyed his retirement. Above all, he enjoyed the loving relationships with his daughter and two granddaughters.

It was an unusual family arrangement, but it worked well for everyone. It worked for the two little girls whose substantial sex drives were awoken early and who, in their mother's indelicate words, came like sluts. And it worked for the two perverts, father and daughter.

---------

Bill saw them first as they passed the airport security gate at Logan.

"Grandpa!" Kira said, as she walked quickly across the twenty feet that separated them. Tara was close on her heels, and Bill hugged one in each arm.

"How was California?" he asked.

"OK," Kira said.

Tara nodded.

"Did you enjoy seeing your dad?"

"Yeah, it was OK," Kira answered.

Bill would get the full rundown later from Allie. Kyle had gotten his act together enough to suggest a visit. Feeling that it was important for the girls to know their father, Allie had flown the three of them out for a week's stay over February vacation.

"Disneyland was great," Tara said, "and the warm weather."

"But we missed you," Kira said.

"A lot," added the littler one.

Luggage was retrieved and loaded, and the four piled into the van for the half-hour ride home.

As Bill turned the van into the driveway, Tara asked, "Can I go visit grandpa?"

"After we unpack, OK?" Allie said.

"No!" Kira whined. "We can do that later!"

Allie sighed. "Would you mind having the girls come see you?"

Bill had just finished adjusting his crotch as unobtrusively as he could.

"I guess not," she said, with a little snicker.

"At least carry your bags upstairs!" Allie said.

"Mom!" the two whined in unison as they waited impatiently outside Bill's door.

Allie shrugged her shoulders and looked at Bill, then whispered, "We were wrong, they're perverts too!"

As soon as Bill shut the door behind them, girl pants came down and shoes got tossed aside in a frantic rush.

"Me first!" yelled Tara.

"No, it's me!" Kira answered. "I gave you the window seat!"

"I'm here first," called the undoubtedly naked Tara from the bedroom.

"I'll be wetter sooner!" called Kira.

Bill had no doubt Allie had raced upstairs and was fumbling to connect the camera's live feed so she didn't miss anything. He tried to calm his mind, fervently hoping he could wait to get his twitching cock into one or the other of the sweet pussies before shooting his stuff. It would probably arch the length of the bed and splatter against the wall.

"Quit pushing!" Kira said.

"Girls, girls!" Bill called, heading into the bedroom. He had stripped, and his cock was bulging, painfully hard. "I tell you what, I'll flip a coin."

As he picked up the coin he saw his two naked granddaughters, side by side with legs wide apart, rubbing away frantically, gazing at his cock. He could see both pussies so wet that the precious stuff was starting to ooze out.

He smiled as he said, "Kira, call it in the air!"