The girls were fighting again. Mary Kate had gotten up fifteen minutes early, specifically so she'd have time to use the bathroom before Ashley set up camp in there (Ashley typically spent about an hour bathing and shampooing and messing with her hair, and no doubt holding the pulsating shower head against her pussy), but just as Mary Kate got a change of clothes ready and her own personal soaps and towels together Ashley suddenly threw back her blankets, leaped out of bed, and shot out of their room and into the bathroom, shutting and locking the door behind her.

"Hey!" Mary Kate shouted, running into the hall and banging on the bathroom door. "No fair! I was gonna use the bathroom! I got up early and everything! You've only been awake three seconds!" She banged her little fist on the door again. "You stupid slut!"

"Mary Kate," her dad said from his own bedroom doorway, "I've told you not to use that kind of language."

"But Dad, she's going to be in there until I'm thirty five! I don't wanna be all dirty when Uncle Matt gets here."

"Still, that's no reason to be calling her such names. As soon as she gets out of there I want you to apologize to her."

Mary Kate threw her arms up in the air and stomped back to her room. Her dad went to the bathroom door and knocked.

"Ashley!" he called. "Don't take too long in there! Your sister needs to use the bathroom too!"

The only reply he received was the sound of the shower being turned on. He tried the door but it was locked, so he turned and went to the girls' bedroom door and opened it. He stuck his head in and found Mary Kate taking everything out of Ashley's dresser drawers and tossing them onto the floor.

"What are you doing?" he asked.

"Getting revenge," Mary Kate replied.

Dad put his hands on his hips and stared at her and Mary Kate stopped, stared back at him.

"Put all of that back, Mary Kate," he told her.

"But Dad," Mary Kate whined, "you don't know what a pain in the butt it is to live with her."

"Oh, I think I have an idea. I figure it's probably a lot like the pain in the butt it is to live with you. Now, come on, put those things back in Ashley's dresser."

"Fine," Mary Kate replied. She bent down and began picking up nightgowns and socks. "But I'm not touching her stinky underwear."

Dad stood in the doorway and watched her, making sure that she got all of the things she'd taken out of Ashley's dresser put back (minus the underwear), then turned and went back downstairs. As soon as he was gone Mary Kate took everything back out and threw it all over the room. Then she went over to Ashley's vanity, took her bright pink lipstick, and wrote on her mirror in huge block letters: Ashley is a stupid slut. She was busy attempting to unlock her sister's diary (she was planning to add a new entry detailing a sexual interlude with a gang of gorillas) when Ashley came back from her shower, wearing her robe and a towel turbaned on her head. Mary Kate was expecting her to scream and yell and possibly hit her, but Ashley simply bent down and picked up a pair of underwear and a pair of socks, then took off her robe and began to put them on.

"Aren't you going to get mad?" Mary Kate asked, feeling almost as disappointed as she was mystified.

"Nope," Ashley replied. "And stop looking at my boobs, lezgirl."

"I'm not looking at your boobs. But why aren't you mad? I just threw your stuff all over the room."

"Because." Ashley went to her closet and began searching for an outfit to wear. "As soon as Dad sees what you did he's gonna beat your teeny brains right out of your head. By the way, I heard him telling you to apologize to me for calling me a slut."

"So?" Mary Kate asked as she gathered up her shower stuff.

"So, I'm waiting for your apology. And make it good, I was deeply wounded."

"Fine. I'm sorry your a slut."

"I'm not a slut, you buttsuck!" Ashley yelled, but it was too late, Mary Kate had already gone out of the room. Ashley sighed melodramatically, then went back to picking out an outfit, looking for what she hoped would be the perfect ensemble with which to impress Uncle Matt.

*****

Mary Kate set her towel on the floor right in front of the tub, put her special soaps and shampoo on the shower shelves, then turned on the water. As it was warming up she took her nightgown and her underwear off and put them in the hamper, then carefully inspected her face in the mirror for zits until the mirror began to fog up. She jumped in the shower, immediately screamed because the water was too hot, adjusted the temperature, then took the bar of soap and began to lather herself up. While she did this she thought about her Uncle Matt.

He was coming to visit today, all the way from New York City, and Mary Kate was happily anticipating his arrival, since she hadn't seen him since she and Ashley were seven years old. She remembered him as being a tall and muscular guy, young and handsome, with a big toothy smile like Donny Osmond. She also remembered sort of having a crush on him and wanting to kiss him, but that only lasted for a few days. Her crush ended when she accidentally discovered him hugging and kissing Ashley and sticking his hand down her pants. Since then she'd been kind of mad at Uncle Matt even though she still liked him, and she felt a little apprehensive about his visit because even though she really wanted to see him again she knew that he was probably going to do more than just stick his hand down Ashley's pants this time. After all, she and her sister had grown up a lot, they'd both grown little boobs (and would probably get hair on their pussies any day now), and of course, Ashley had turned into a big sloppy slut.

A month ago Ashley had given Piper Valentine a blowjob, then let him fuck her, and as soon as that happened just about every guy in the city who was old enough to get a woody wanted to go out with her. Ashley said no to most of the guys who asked her (especially the ones over eighteen), but she did go out a few times a week, and Mary Kate was convinced she did it with them. Let them put their big ugly dicks in her mouth and her pussy. Let them contaminate her with their disgusting splooge. And Mary Kate knew that Uncle Matt was going to get the chance to do the same thing, since Ashley still had a crush on him. Big sloppy slut.

Mary Kate had gotten most of her body lathered with soap, and now she began touching herself, one hand caressing one of her small round boobs while the other one rubbed the bar of soap between her legs. She closed her eyes and imagined Ashley and Matt together, what they would be doing once they got the chance to be alone. Kissing, no doubt, and Matt would be feeling her boobs and sticking his hand down her pants, and probably complimenting her on what a promiscuous little bitch she'd become.

And Ashley, true to form, would smile sweetly and bat her silly eyes and dive bomb for his crotch. She's whip it out and suck his dick like the preteen version of Traci Lords. She'd probably suck him dry, letting him go off in her mouth and swallowing it like it was Ben and Jerry's. Then she'd take off all of her clothes and let him stick his big dick in her and fuck her empty head off. And maybe even though she'd had about five million dicks in her in the last week, she'd still be kind of tight because Matt's dick was the biggest one she'd had so far. It might hurt her a little bit but he'd get it in. He'd stick his long hard cock right up into her pretty cunt, then he'd just slam her and slam her and she'd come like crazy, only she wouldn't gasp and moan real loud like she usually did, she'd just make these soft quiet little pleasure noises, the way she did late at night and she was masturbating and she thought Mary Kate was asleep and didn't know. Yeah, she'd make those kinds of noises, and she'd play with her boobs and touch her pussy while Matt was fucking her.

Mary Kate fondled and caressed herself while she thought about these things, one hand gently squeezing and pulling on her small round boobs while she slowly rubbed the bar of soap against her pussy. In her mind she watched Ashley doing the Big Ugly with Matt, watched him pummeling her with his huge nasty dick until he sprayed his come all over her, then the fantasy changed and it was just Ashley, laying on her bed naked, covered with Matt's stuff and masturbating and making those sweet soft noises. She rubbed and fondled herself the same way Mary Kate was doing it, only without the water and soap, and as she got closer and closer to orgasm so did Mary Kate, and pretty soon Ashley was breathing hard and pinching her little nipples and rubbing her hand really fast over her clit and pussy lips and Mary Kate was doing the same thing. Mary Kate changed the fantasy again, adding herself to the picture, and now she and Ashley were kissing and pushing their fingers in and out of each other's pussies, furiously fingerfucking each other while they kissed and sucked each other's boobs, and finally she came with a powerful shuddering moan that she just knew was way too loud.

After she was done masturbating Mary Kate soaped herself up again, washed herself under the spray of water, then shampooed and rinsed. As she did this she thought about the day ahead and what would probably really happen. More than likely Matt would take them someplace fun and they would have a good time despite Ashley batting her eyes and flirting with him and otherwise making a big dumb goofball out of herself the whole time, then he would bring them home and that would be it. Except for maybe he would stop in some out of the way place on the way home and Ashley would give him a blowjob. And then Matt would bring them home and leave to go back to New York and Mary Kate would have to listen to all the horrifying details, probably for the next week. Or at least until Ashley got a mouthful of jizz from some other pukey boy.

Gee, Mary Kate thought sarcastically, I can't wait.

She shut off the shower and got out, dried off with one towel, put her hair up in a second towel, and wrapped a third towel around her body. She gathered up her shower things and left the bathroom just as her dad was coming up the stairs and she said hi to him. At the same time she accidentally dropped one of her soaps, and when she bent down to pick it up the towel she'd wrapped around herself somehow came undone and dropped straight to the floor, leaving her totally naked. Her dad, who'd been about to say something, stopped with his mouth open and his eyes wide, staring right at her little boobs.

"Oh my God!" Mary Kate cried. She yanked her towel up from the floor and held it in front of her, making all the other soaps and shampoos and hair conditioners fall onto the floor, bouncing and rolling everywhere. Mary Kate cried out again, then dashed for her room, hearing her dad chuckling and calling after her, "Don't worry, sweetheart, I'll pick it up."

Mary Kate burst into the bedroom and ran to her bed, threw herself down on top of it, not even noticing that Ashley was taking everything out of Mary Kate's dresser and stuffing it into a suitcase.

"Oh my God!" Mary Kate cried into her pillow, "I can't believe it!"

"What happened?" Ashley asked, "They cancel Queer As Folk?"

"No, Dad saw me naked! Without any clothes on!"

Ashley shrugged and said, "So what? He's seen us naked before. Just be glad he didn't pop a boner and start telling you about how much he misses Mom." She shook her head and rolled her eyes, then closed Mary Kate's suitcase.

Suddenly the bedroom door opened and Dad came in. Mary Kate, barely covered with her towel, screamed and pulled her blanket up over her. Ashley laughed as she dragged Mary Kate's suitcase over to the window.

"Hi, girls," Dad said, carrying Mary Kate's shower stuff over to her bed and dumping it around her feet. Mary Kate screamed again. He looked over at Ashley, who was busy trying to lift Mary Kate's suitcase up to the window sill, and asked her, "What are you doing?" then looked around the room, saw all the mayhem Mary Kate had wreaked earlier, and asked, "And what is all this? Are you girls still fighting?"

"No," both girls answered at the same time.

"Well, you get all this stuff picked up before your uncle gets here. And Ashley, put your sister's suitcase down."

Ashley sighed and let the suitcase drop on the floor.

"Dad, get out of here!" Mary Kate yelled from beneath her blanket. "And tell Ashley to put my stuff back!"

"Dad," Ashley said, "Mary Kate's a dyke and she won't leave me alone."

"Shut up, you pukey slut!" Mary Kate cried.

"At least I don't play with myself while I'm watching Buffy the Vampire Slayer, you smelly sicko!"

"If Dad wasn't here right now I'd kick the shit out of you! Dad, get out of here!"

"Alright, girls," Dad yelled, his hands on his hips, "that's enough. Do what I told you and no more fighting, otherwise I won't let you see your uncle when he gets here."

He turned and went out of the room, shutting the door forcefully behind him, and both girls stayed perfectly still until they heard him going down the stairs. Once they were sure he was gone Mary Kate threw back her covers and Ashley dove toward the bed and they began to fight, screaming and pulling hair and rolling around the bed and onto the floor. In the process of their battle Ashley's top, which she had just put on a few minutes ago, got torn and her little boobs came falling out into the open, and of course Mary Kate's towel got tossed across the room and she was completely naked again. The girls wrestled around on the floor like that for a few minutes, until they both got too tired to fight and finally called a truce, then lay entangled and entwined, breathing hard and giggling. They'd ended up with Ashley sort of on top of Mary Kate but Mary Kate quickly changed that, rolling Ashley over onto her back and laying on top of her.

"Wanna make out?" she asked, then pecked Ashley on the lips.

Ashley clicked her tongue and rolled her eyes and said, "God, MK, you never change."

Mary Kate didn't reply, she simply began kissing Ashley's face and neck, making her way down to her sister's small boobs. She pulled the torn part of Ashley's top open further, exposing both of her small firm tits. She kissed one, then the other, then took one nipple between her lips and began gently sucking on it. Ashley sighed and caressed Mary Kate's hair for a few moments, then said, "We should stop, Mary Kate. We have to get ready for Uncle Matt."

"Yeah, okay," Mary Kate said, sounding morbidly disappointed. She slowly got up off of her sister, got to her feet and helped Ashley up, asking, "Can we make out tonight?"

"Maybe," Ashley said as she straightened her clothes. "You'll have to take another shower first, though. You smell like poop."

"Shut up, you slut," Mary Kate replied with a giggle.

*****

Mary Kate and Ashley finally got dressed and managed to get most of the stuff they'd thrown around the room put back in their drawers, as well as the lipstick off of the mirror, just a few minutes before their Uncle Matt showed up. They were primping in front of their vanities and talking about the day ahead (Mary Kate: are you going to let Uncle Matt stick his worm in your big smelly pussy, Ashley?; Ashley: I dunno, MK, maybe I'll just get him to beat you up and sodomize you with a screwdriver.") when they heard their dad call up the stairs that their uncle was here. Both girls dropped their hairbrushes and dashed for the door, fought each other to get out, then blazed down the stairs, Ashley in the lead. When they got down to the living room they found their dad and their uncle standing near the sofa talking. Uncle Matt was the one to look toward them and smile and say, "Hey, there's my two favorite nieces."

"Hi, Uncle Matt!" the girls called out together.

They ran over to him and he took one in each arm and hugged them, then picked them up off the floor and swung them around once. The girls hung on and giggled, and when he set them back on their feet they wouldn't let go of him.

"Uh oh, Jim," Matt said to his brother, "looks like I've got two girls stuck to me. Guess I'll just have take them home with me."

The girls yayed and their dad said, "You can have them, Matt. Just remember to feed them once a week, and if they start fighting just hit them with a rolled up newspaper."

Matt finally got the girls to let him go and asked them, "How would you two like to go to the fair today?"

Mary Kate and Ashley screamed and jumped up and down and shouted that they'd love to go to the fair.

"Well, get on out to the car, then. Can't hang around this boring old house all day."

The girls dashed for the door, struggled with each other to see who would get through the doorway first, then ran outside. Matt turned to Jim and said, "Couple of eager beavers, it looks like."

"Well, not exactly beavers yet," Jim replied. "They still haven't grown any hair. Nice little knockers, though."

Matt chuckled.

"Now, Jimmy," he said, "you haven't spoiled those two ripe young things, have you?"

"Are you kidding? That would be incest, not to mention pedophilia."

"And your point is....?"

Jim chucked his brother on the shoulder and said, "Bring them back in one piece, please. And try not to make them grow up too fast. I've got enough to worry about."

"Don't worry, big brother," Matt said as he started for the door. "I won't harm your little princesses. Believe me, they're in very good hands."

"That's what I'm worried about," Jim replied.

*****

Naturally, Mary Kate and Ashley fought over who would sit in the front seat. Matt had a nearly brand new Ford Mustang, painted bright yellow, and it gleamed in the morning sun as the girls pushed and shoved each other at the curb. They'd just fallen down and begun to wrestle in the grass when their uncle came out and pulled them apart. Laughing, he told them, "Alright, girls, no more fighting. You fight any more today, even one time, and I'll bring you right back home and spank your little bare butts."

"Hit Ashley hard," Mary Kate said, still breathing heavily from the fight, "she likes it that way."

"I do not, you poop eating dyke," Ashley replied.

"And no more insults," Matt said, still chuckling a little. He shook his head. "Man, you girls are a handful. Which is actually the best thing about you, or at least I hope it is. Tell you what. Ashley, you can ride up front on the way to the fair." Ashley yippeed and Mary Kate groaned and fell flat on her back in the yard. "And Mary Kate, you can ride up front on the way home." Mary Kate wooped and sat up, narrowly avoiding Ashley's kicking foot. "Come on, ladies, get in the car." Both girls dove for the passenger door, yanked it open, and Mary Kate climbed in the back, then Ashley got in the front. Matt watched them with his arms crossed, then shook his head again and said, "Didn't even have to offer them any candy."

He went around to the driver's side and got in, checked to make sure both girls were buckled up, then started the engine and drove away from the curb. He wasn't even half a block away before Mary Kate noticed his hand creeping over to Ashley's leg.

Oh brother, Mary Kate thought, then said, "Hey, Uncle Matt, it's actually a good thing that Ashley gets to sit up front."

"Really?" Matt replied. "Why is that?" He began moving his hand slowly up and down Ashley's thigh.

"Because whenever she's in the back seat of a car boys start lining up outside."

"Yeah, right," Ashley said, "and that's the last thing you'd ever want is a boy."

"Well, at least I don't have to make weekly trips to the free clinic," Mary Kate replied.

"Now, girls," Matt said, "remember what I told you about insulting each other. You two should be nice to each other."

"Yeah," Mary Kate said, "be nice to me, you dumb slut."

"I will," Ashley replied, "as soon as you stop trying to suck my pussy every time I turned around, you sleazy-"

Suddenly Matt slammed on the brakes and the car shrieked to a halt, causing both girls to scream.

"I said, be nice," Matt told them in a stern voice. He looked from one niece to the other. "No more fighting or insults. You understand?"

"Yes, Uncle Matt," both girls replied in unison, their voices trembling.

Matt nodded and began driving again, saying, "That's more like it."

*****

It took them about twenty minutes to get to the fair, and the entire rest of the way there Matt had his hand on Ashley's leg, right up near her crotch. Ashley was chatting her head off, all bubbly and silly, pretending that she wasn't practically getting fingerfucked while she talked, and Mary Kate sat in the back seat with her arms crossed and a scowl on her face. She figured that Matt would probably be doing the same thing to her on the way home, but she couldn't decide if she would let him or not. Probably not, except maybe she would if it made her dumb sister jealous.

They finally got to the fair and the girls each took one of Matt's hands and headed straight for a refreshment stand and made him buy them soda pops and cotton candy. After that they dragged him around to every ride and amusement booth in sight; the ferris wheel, the merry go round, the bumper cars, the roller coaster, the fun house and all the shooting galleries where they both won stuffed animals. And they were totally nice to each other the whole time, not arguing even once, and not even coming close to beating each other up. The only problem they had was when Mary Kate managed to knock over a bunch of milk bottles with a rubber ball and won a foot long baseball bat, which she promptly handed over to Ashley, telling her, "Here, you can fuck yourself with this," to which Ashley had responded, "Yeah, either that or I can beat you to death with it." Fortunately, Uncle Matt had been staring at some shapely twelve year old girl who was bugging her dad to take her on the ferris wheel and he hadn't heard their little exchange.

They also made him buy them lunch, and candy and other snacks, and naturally they weren't actually going to carry anything themselves, so by late afternoon he was following them around with bags bulging with stuffed teddy bears and giraffes and kitty cats, toy baseball bats and plastic purses and pennants destined for the walls of their bedroom. And because he was almost three times their age, he was ready to go home long before they were, and was in kind of a bad mood when the girls finally decided they'd had enough fun.

They got back to the car and waited patiently while he loaded all the goodies into the trunk, then waited patiently again for him to open the passenger door for them like a gentleman. Ashley went to get into the back seat but Mary Kate stopped her and said, "No, you can go ahead and sit up front. I don't mind sitting in back."

Ashley giggled and said, "Nope, sorry, it's your turn, MK."

"But I don't want to sit up front."

"Yeah, I know," Ashley replied, climbing into the back seat. "And I know why, too." She cackled and pointed her finger at Mary Kate and Mary Kate balled up her little fists.

"Fine," she growled, "but you are so gonna get it when we get home."

"Yeah, and you're gonna get it at the next stop light."

By this time Matt was climbing into the driver's seat and gruffly telling Mary Kate to get in so they could go home. Mary Kate stuck her tongue out at Ashley as she got in and Ashley smiled and flipped her off. Once they were buckled up Matt got the engine started and grumbled and complained as he tried to maneuver his way out of the parking lot. After about five minutes of crawling along at one mile an hour he finally got out onto the street and they were on their way.

Less than a minute later his hand crept across the open space between him and Mary Kate, slinked up onto her knee, then slowly began moving toward her crotch. Mary Kate considered smacking him, but she felt oddly flattered; he obviously liked her just as much as he liked Ashley. She found herself smiling just a little as his pinky finger made contact with the spot between her legs, light and feathery at first, but then pressing against her. She glanced back at Ashley to see if she was watching but her sister had her eyes closed and one of her hands down the front of her pants. Oh brother.

Mary Kate looked out the passenger window, watching the city fly by, and let Matt touch her for another minute or so, but then he started fumbling with the button on her jeans and she decided she had let him do enough.

"Hey, Uncle Matt," she said, "guess what?"

"What?" Matt said absently, staring out at the traffic but still trying to get her pants undone.

"They have laws against incest. And having sex with kids under eighteen. Isn't that a kick in the head?"

Matt wordlessly drew his hand away and gripped the wheel.

"How about if I give you a kick in the head, butt nugget?" Ashley said.

"How about if I glue your skanky pussy shut, turdface?" Mary Kate replied.

"How about if you both shut up for a minute?" Matt said.

The girls quieted down and Matt drove on for another minute, then slowed and turned into a parking lot. Mary Kate and Ashley both looked to see where they were going and found that they were now in the parking lot of a motel.

"What are we doing here?" Ashley asked.

"Yeah, right," Mary Kate replied, "like you've never been to one of these before."

"Oh, go suck a pussy, Mary Kate."

Matt parked the car and shut off the engine.

"We're only going to be here for a short while," he told the girls, "so I want you to be on your best behavior, alright?"

"Ashley sure will," Mary Kate said. :"I think I'll just wait here in the car. Do you have any barf bags?"

"Both of you are going in. Now, come on."

Matt got out of the car and the girls got out too, fighting over who would get out first. It would have come to blows if Matt hadn't come around and separated them. He grabbed each girl by an arm and led them to room number 12, made them stand next to each other as he unlocked the door, then let them go in. He followed them inside and shut the door behind him, locked it. Mary Kate and Ashley looked around the dim rundown room as Matt pulled the drapes shut and turned on the lamp by the bed.

"Okay," he said, sitting on the bed and looking up at the girls. "Why don't you two come sit with me and we can talk about a few things."

"Like what?" Ashley asked, moving over to the bed and sitting next to him.

"I'm gonna go hang myself," Mary Kate announced, then went into the bathroom and shut the door.

"What is it with her?" Matt asked.

"Well," Ashley replied, "for one thing, you're a boy, and she doesn't like boys. For another thing, you're not a reptile, which is the only species she can have meaningful orgasms with. And for another thing, she eats poop right out of the toilet, which is what she's really doing in there."

"She doesn't like boys? You mean she's a lesbian?"

"A lesbian reptile. But I don't wanna talk about her anymore. I'd like to be able to keep my lunch down. Let's talk about me instead."

Matt laughed and said, "Okay, what about you, Ashley? You're not a lesbian, are you?"

"Nope. And I don't eat poop, either."

Matt put his arm around Ashley's shoulders and said, "Well, then, you sound like someone I'd like to get to know much better."

"Cool," Ashley said, a big grin on her face.

A moment later they were kissing, and Matt began fondling her through her blouse. Ashley sighed and reached for his lap, started to stroke his cock through his jeans. They made out like this for about a minute, then Matt pulled his mouth away from hers and asked, "You suck cock, Ashley?"

"Are you kidding?" Mary Kate said from the doorway of the bathroom. She was standing there with her arms crossed and a scowl on her face. "All the guys in our school just took up a collection to buy her her own set of kneepads."

Matt and Ashley both looked around at her.

"Hey, Mary Kate," Matt said.

Ashley was still stroking Matt through his jeans as she said, "Well, at least I don't steal all of Dad's Playboy magazines and lock myself in the closet, you weirdo."

"I don't lock myself in the closet, you sloppy slut."

"Shut up, carpetmuncher."

"You shut up, cumbag."

"Oh come on, girls," Matt said. "Can't you two get along just for another hour or so?"

"Gee, I'm sorry, Uncle Matt," Mary Kate said, although she didn't sound like she was sorry at all. "I didn't mean to interrupt the felony you're committing with my sister. Go right ahead and victimize her, I'll just stand here and watch. By the way, she likes to be beaten and raped in the butt."

"I do not," Ashley said.

"Actually," Matt said as he started to get up from the bed, "maybe this was a bad idea. I'll just take you girls home instead."

"No!" the girls cried in unison.

Ashley reached out and grabbed Matt's wrist, tugged him back in her direction.

"Don't take us home, Matt," she said. "Just ignore Mary Kate, she's a stupid fuckhead. We can do stuff and she won't tell, I promise."

"I dunno," Matt said, looking from one girl to the other.

Ashley gave her sister a look that was half imploring and half scowl and Mary Kate sighed, dropped her arms to her sides and said, "Oh, alright. I promise I won't tell."

"Yay," Ashley said. She wrapped her arms around Matt's neck and they began kissing again.

As they kissed Matt unbuttoned Ashley's blouse and pulled it open, exposing her round little tits, and began to fondle her. Ashley sighed and mewed and reached for the fly on his jeans. She undid the button and pulled the zipper down, reached inside and found his cock and pulled it out into the open. Matt moaned against her mouth as she began stroking him, sliding her little hand slowly up and down the shaft.

Mary Kate stayed in the bathroom doorway, her arms still crossed over her chest, watching with a mixture of resentment and interest; she didn't really like watching her sister getting laid, but at the same time she did like looking at Ashley's sweet little body. Besides, Matt had an exceptionally large dick, which she found fascinating despite the fact that she firmly believed that dicks in general were the most revolting things on the face of the earth.

Matt took his mouth away from Ashley's lips, whispered in her ear, and the next moment he was laying on his back and Ashley was leaning over his stomach and holding his huge cock straight up in the air. It looked even bigger now, and so swollen that it might burst. Ashley stroked it with her small hand, slowly from the knobby part at the top all the way down to his balls, then back up again, then down, up, down, until Matt apparently got tired of waiting and put his hand on the back of her head. He gently pushed and Ashley brought her mouth down on him. She had to open up as wide as she could, and when she slipped her lips down over the end of his dick she only got about an inch past the knobby part before she had to stop. She was still stroking him, and now she started to bob her mouth up and down too, in time with the movement of her hand. Matt laid his head back against the headboard and let out a light moan as he watched her.

Mary Kate was still standing in the bathroom doorway, watching everything that was going on. She was a little disappointed; she figured Matt could have at least gotten a little rough with Ashley, slapped her around a bit, or even forced his dick down her throat till she choked. That would have been cool. But no, he just laid there and let her go at her own pace. Played with her hair and her pretty tits while she sucked him off. Mary Kate didn't care for watching that kind of thing, although she had to admit that she liked watching Ashley. And now that she thought about it, she really didn't want Matt to hurt her sister. She just felt that way sometimes because Ashley was so boy crazy. Mary Kate wished that she could be boy crazy too, but only because it would make Ashley happy. It would have been cool the other way around too, if Ashley liked girls as much as she did. That would have been way cool. That would have been bitchin.

Ashley was still bobbing and stroking on Matt's dick, apparently enjoying the hell out of it, but suddenly she stopped and looked up at Mary Kate.

"Hey, MK," she said. "Instead of just standing there wishing you could be me, why don't you come over here and help me out? I don't mind sharing, and I know Matt wouldn't mind."

"I'd rather rip out my intestines with a fork," Mary Kate replied, reciting her favorite Weird Al Yankovic line. "No offense, Uncle Matt."

"Oh, come on," Ashley said, still stroking Matt's dick and smiling sweetly at her sister. "If you come help me, I promise I'll be nice to you the rest of the day."

Mary Kate's eyebrows went up.

"Nice? How nice?"

"Really nice," Ashley said, using that special sultry voice she always used whenever she was trying to get Mary Kate to do something she hated.

"Okay," Mary Kate said. She started toward the bed, taking her clothes off as she went.

Ashley continued to suck Matt's cock, but as soon as Mary Kate had her clothes off and climbed onto the bed she took her mouth off of him and said, "Your turn, Mary Kate."

Mary Kate laid down next to Matt and looked at his dick, then at Ashley, a reluctant expression on her face.

"What if I barf?" she asked.

"You won't barf," Ashley told her. "Just pretend it's that dildo you keep under your mattress."

Mary Kate rolled her eyes, then looked back at Matt's dick. She swallowed, took a breath, then closed her eyes and opened her mouth. Immediately she felt Ashley's hand on the back of her head, pushing. She would have complained about that except Matt's cock was suddenly sliding into her mouth. It really was big, bigger than she'd thought, and fat too. It pushed past her lips and slid over her tongue, filling her mouth completely before bumping up against the back of her throat. Mary Kate gagged a little and pulled her mouth back, then put her hand around the shaft and started stroking it. Matt groaned and Ashley giggled.

"Cool," she said. "MK, you're a natural. You could almost pass for a straight girl."

She giggled again and Mary Kate had to resist the urge to slug her. She told herself she just had to endure this stupidity for a few minutes and then she'd be able to do fun things with her smartass sister. She continued to stroke Matt's cock, realizing that this actually wasn't as bad as she thought it would be. It was still a disgusting nightmare, but she figured she could handle it as long as Matt didn't go off in her mouth. She'd leave that part for Ashley, who tended to suck the shit up like candy. Matt moaned again and stroked her hair while Ashley took his balls in her hand and played with them. Mary Kate continued to slide her mouth up and down on Matt's long dick until she felt Ashley's fingers on her chin. She pulled her mouth away and Ashley took the end of his dick back into her own mouth and started sucking on it again. Mary Kate kept stroking him, watching her sister bobbing on their uncle's knob, apparently enjoying herself.

Jeez, she thought, it's a miracle I haven't tossed my cookies yet. How can she stand it? So disgusting. But look at her, though. She's so beautiful, even with that horrible thing in her mouth. And she's obviously gotten good at the whole blowjob queen thing. No wonder boys like her so much.

Ashley's hand slid up from Matt's balls, replacing Mary Kate's hand and taking over the stroking job, and Mary Kate on impulse reached up and touched her sister's face, then slid her fingertips down along her neck to her shoulder. She caressed Ashley's smooth skin, feeling her back and her arm, then reached down under her arm to grasp one of her firm little boobs. Ashley didn't even seem to notice, she was so intent on slurping up Matt's slop. Mary Kate held her sister's boob lightly, fondling and squeezing it, playing with the nipple. Just touching Ashley like that sent warm shivers through her body and, again on impulse, Mary Kate leaned closer to her and kissed her cheek. Ashley removed her mouth from Matt's cock and gave her a quick peck on the lips, making her smile.

Matt had one hand on each of the girls' heads, fondling their hair, as he said, "Hey, girls, why don't you both work on it at the same time?"

He sounded like he was about to pass out.

"Okay," Ashley said, obviously speaking for both of them, and started to lick Matt's cock from his balls all the way up to the knob at the top. Mary Kate sighed and joined her, halfheartedly licking the other side. They worked on him together for several minutes, both of them sliding their little tongues all over his cock and balls, until Mary Kate's jaw started to hurt and she stopped. Ashley was still going all out and Mary Kate poked her boob with her finger.

"Cut it out, cocksucker," she said, and giggled.

Ashley responded by taking Matt's cock back into her mouth and sucking on it like a porn star. Matt let out another groan and grabbed the girls' hair in his fists.

"Ow," Mary Kate said. "Take it easy, you big gorilla."

She went back to feeling Ashley's little boob while her sister slobbered all over Matt's dick, wondering when this whole thing was going to be over. Then suddenly Ashley took Matt's cock out of her mouth again and pushed it up to Mary Kate's mouth. Mary Kate started to say that she didn't want to suck on it anymore but never got the chance because at the same time Ashley had put her hand on the back of Mary Kate's head and pulled her forward and Matt's cock slid right back into her mouth.

"Mmfff," she said as her uncle's fat one eyed worm slithered all the way to the back of her throat. She tried to pull away but Ashley was still holding her head, giggling as she did so.

"Hope you like hot mayonnaise," Ashley said.

"MMMMFFFFFF!"

A moment later Matt's cock began to throb and come began pouring into Mary Kate's mouth. She made another protesting noise, tried to pull her mouth away again, but Ashley had too strong a grip on her and she was forced to take the entire disgusting load. The taste was horrid, of course, and Mary Kate felt like puking up her colon.

"Swallow it," Ashley told her. Matt just groaned as his cock continued to throb and leak his goop into her mouth.

Mary Kate reached around and forced Ashley's hand away from her head and was finally able to pull her mouth off of her uncle's dick. She immediately got up from the bed and ran into the bathroom, leaned over the toilet and spit the ungodly stuff into the bowl. She felt a gag coming on and waited to barf, but when nothing came out she spit again, then again. After that she went to the sink and brushed her teeth with the tiny motel toothbrush and the crap flavored motel toothpaste, trying to think of some way she could get back at her stupid evil sister.

She heard Ashley laughing in the other room, and at the same time Matt was telling her, "Ashley, that wasn't very nice. You shouldn't make somebody do something they don't want to do."

Boy, did he have a lot of room to talk. Maybe she could get back at him too. Mary Kate envisioned herself rushing at them both as they lay naked on the bed, beating them with a baseball bat. Unfortunately, there weren't any baseball bats around except for the fake one in the car. Besides, she wasn't really violent anyway. She just couldn't understand why her sister, her very own twin, wouldn't accept who she was. It didn't seem fair, since Mary Kate had gone to great pains to accept Ashley for the rancid cockholster she was.

She told herself not to let it bother her, there were going to be many more days like this one (well, okay, not exactly like this one), but no matter how hard she tried she couldn't keep the tears from coming to her eyes.

"Oh, hey," Ashley said. She was standing in the doorway, totally naked. "I'm sorry, Mary Kate. I didn't mean to make you cry."

She came into the bathroom and put her arms around Mary Kate's waist, hugged her gently. Mary Kate felt Ashley's warm skin against her own, her firm little boobs pressing into her back. She wiped the tears from her eyes and said, "It's okay, Ash. I know you weren't trying to be mean, even though what you did was mean."

"I'm sorry," Ashley said again. She kissed Mary Kate's shoulder. "Want me to make it up to you?"

"Yes, I do."

"By letting you do things with me?"

"Yes."

Ashley laughed a little and said, "Well, you know what. Uncle Matt looks just a little bit big for me. I may need somebody to lube me up so he doesn't damage anything in there. Know what I mean?"

"Why don't you just use Vaseline?" Mary Kate asked. "You buy the stuff by the truckload. You dumb slut."

"Aw, come on, don't be mad at me anymore." Ashley had her hands clasped together in front of Mary Kate's stomach, but now she moved them up, sliding them over her sister's boobs. She squeezed tenderly and whispered, "I promise I'll be nice now."

Mary Kate didn't need any more convincing. She turned around in Ashley's arms, embraced her, pressing her own little boobs against her sister's, and kissed her on the lips. Ashley kissed her back for a moment, then said, "Come on, let's go back to bed."

"Why?" Mary Kate said. "We could just do it in here if you want to." Her eyes went wide and she smiled. "Hey, we could take a bath together."

"No, MK, Matt will wanna watch us doing it. Now, come on."

Ashley took Mary Kate's hand and led her out of the bathroom. Matt was still laying on the bed totally naked, his big dick going flat as he smoked a cigarette. When he saw the girls he said, "You two get everything straightened out in there?"

"Don't say straight," Ashley told him. "Mary Kate hates that word. It's like an evil spell or something." She crawled back onto the bed next to Matt, laid down on her back, and told Mary Kate, "Okay, come on."

"What's going on?" Matt asked as he crushed his cigarette out in an ashtray.

Mary Kate got onto the bed too, laying down next to Ashley, and Ashley said, "We have a little show cooked up for you, Uncle Matt." She turned her head and looked at her sister. "Okay, MK, go ahead and do your crime against nature."

Mary Kate didn't need any coaxing. She immediately rolled over on top of her sister, insinuating herself between Ashley's legs, and started kissing her.

"Wow," Matt said.

Ashley put her arms around Mary Kate's neck as they kissed, mashing lips and tongues together. At the same time Mary Kate fondled Ashley's boobs, caressing and squeezing them, pulling gently on her nipples. They made out this way for about a minute before Mary Kate stopped and said, "I wanna lick your pussy."

Ashley turned her head and looked at Matt, who was staring at them intently, and said, "It's only so I can get lubed up." She reached down and grabbed his cock, which had grown rock hard again. "Lubed up for this."

"By all means," Matt managed to say.

Ashley continued to stroke Matt's cock and Mary Kate moved down her body, kissing her and licking her until she got her face down between Ashley's legs. She paused there to take a long appreciative look at her sister's pussy. It was so beautiful, a tender looking crevice made by two smooth puffy lips, not a pubic hair in sight. The lips themselves were kind of pinkish from having been used and abused like a Hollywood starlet, but it was still just about the loveliest thing Mary Kate had ever seen. She kissed it, then stuck her tongue between the lips and began to lick it lovingly.

"Hmmm," Ashley murmured. She was still stroking Matt's cock, and with her other hand she began caressing Mary Kate's hair, sifting the tendrils through her fingers.

Mary Kate worked on her fervently, pushing her tongue in between her lips, sucking on her clit, and at the same time she snaked one hand down between her own legs and began to rub her fingers over her pussy. She licked and sucked on Ashley as she masturbated, her hand moving rapidly back and forth, and soon both girls were moaning and writhing with pleasure, both of them getting closer and closer to orgasm. Ashley was now clutching one of her own boobs with one hand while her other hand jerked quickly up and down on Matt's cock, and finally, as Matt continued to watch in amazement, both girls cried out in unison, their young bodies trembling and shuddering as they came.

Afterward, Ashley collapsed on the bed like someone had just knocked her out and Mary Kate laid down on top of her, kissing her face repeatedly. Matt's cock was still in Ashley's hand but she was no longer stroking it. Matt didn't seem to care, though, at least for the moment, as he thoughtfully caressed Mary Kate's hair.

"I gotta tell you girls," he said, "that was an incredibly erotic show you just put on. You two are absolutely beautiful."

"Thank you," Ashley murmured. Mary Kate, busy nuzzling Ashley's neck, just ignored him.

Matt played with Mary Kate's hair for another few moments, then slid his hand down her back and over her tiny butt. He caressed her there as he leaned closer and kissed her shoulder, then crawled around the bed until he was positioned behind her. He grabbed Mary Kate by her narrow hips and pulled upward until she was on her knees, then tried to get his cock in between her legs, but Mary Kate suddenly squirmed away, rolling over onto the other side of the bed.

"Oh no you don't," she said. She pointed at Ashley. "She's the future mother of incest babies, not me."

"Oh man, that's too bad," Matt said.

"Too bad for lezgirl," Ashley said, taking hold of his cock and pulling it toward her. Matt followed it, falling down on top of her, and a moment later he was pushing his cock into her.

The standard moaning and sighing and cussing started as Matt began fucking her. Mary Kate just laid there and watched dispassionately, thinking about how silly they looked, this great big grownup guy and this tiny little girl, bouncing naked on the bed together. Except they didn't really look that silly. They looked a little silly, but Ashley was so pretty, and her body was so nice. Yummy, in fact. Mary Kate studied her, or at least as much as she could see of her since Matt was about twice her size, and started to rub herself between her legs, thinking about what she'd done with her sister earlier, remembering how fun it had been to suck on her little boobs and to lick her pussy.

Matt continued to fuck Ashley, going faster and faster, Ashley hanging onto him and moaning and saying, "Yes! Yes! I'm gonna come!" while Mary Kate watched and masturbated furiously, until finally both girls came at the same time. A moment later Matt let out a loud growly kind of noise and suddenly pulled his cock out of Ashley's pussy and got up on his knees. He grabbed Ashley's hand and wrapped her fingers around him and she immediately started stroking him as his come spurted out, flying in an arc and landing in splats on her face, her boobs, her tummy. The stuff went everywhere, a tiny dollop of it even landed in her hair. Ashley continued pulling on Matt's dick, squeezing out some more come, making it dribble onto her pussy, until Matt said, "Oh man, that was incredible," and sat down on the bed.

"You're telling me," Ashley said.

"I'm not cleaning that up," Mary Kate said.

"Yeah, we know, Mary Kate," Ashley replied. "The stuff is like arsenic to you. It's okay, I'll go in the bathroom and clean it up myself while you look over the latest issue of the Advocate."

"Fuck you, Ashley, you dumb slut."

Ashley giggled and said, "Somebody just did. Woo hoo!"

She got up and almost skipped into the bathroom and Matt too got up off the bed, started picking up clothes from the floor.

"We're going to have to get out of here," he said. "Don't want you two getting back too late."

"Yeah," Mary Kate said, "Dad worries when we're late. Good thing we're safe with you and not being sexually molested or anything."

"Hey, Mary Kate," Matt said as they began to get dressed, "you're really not going to say anything to your dad, are you? I mean, what happened here is just gonna be between you me and Ashley, right?"

"Sure, Uncle Matt. I won't say anything. Better check on Ashley, though. She likes to get on her cell phone and blab to both of her friends every time she gets laid. You should see the phone bill, by the way, it's about a million dollars a month."

*****

Once all three of them were dressed Matt took the girls back out to the car, where they immediately began pushing and shoving to get in the front seat. He solved this potential crisis by ordering both of them into the back, then got in and started on the way home. The girls argued and insulted each other most of the way there, but by the time he pulled up in front of the house they were both sound asleep, curled up into each other's arms. Matt looked at them for a moment, appreciating how angelic they looked, then went in and got the girls' dad. They each carried one girl in and up to their room, put them in their beds fully clothed, then spent several minutes carrying in all the stuff Matt had bought for them.

"Well, Matt," Jim said when they were finally finished, "I really appreciate you taking the girls out for the day. And I hope they weren't too much of a problem for you."

"No problem at all, Jim," Matt replied. "They were the sweetest little angels in the world for me."

"Probably the most expensive too," Jim said, eyeing the pile of goodies they'd brought in.

"Ah, that's no problem, either. Believe me, they were worth every penny."

Suddenly there came a crash from upstairs, then the sound of Mary Kate and Ashley yelling at each other.

"Okay, I'm outta here," Matt said, and left the house as quickly as he could, slamming the door behind him.

The girls' dad chuckled and shook his head, said, "Little brats," then started up the stairs to find out what they were fighting about now.