The reason my best friend Suzie calls me a 'pure slut' is because she knows how I am and how I think. I mean even though I'm only fifteen, I already have fucked two guys at school and I'm always pointing out to her other guys that I'd let do it to me ... even two of my teachers, if I could ever get their interest. The one guy I didn't tell her about was the guy I wanted most; that was my step-dad Clark.

In fact, I really think it was because of my horny feelings for him that I had sex in the first place. He had married my mom four years ago and during the first two years of their marriage, I could hear them almost every night. At first, I thought my mom's screams were of pain, but when I began to hear her asking him for more, I knew that she was alright. Still, I was very curious, though I was too afraid to ask either of them what I was hearing.

One night, about six months after these almost-nightly-bouts begun, they left their door partially open. It was quite late and I had been asleep, so I guess they thought they were safe. Instead, I awoke to go to the bathroom and immediately heard mom. When I saw that their door was ajar, I stopped and snuck over. Then I edged the door open until I could see them. That was the first of two times that I actually saw them 'making love' -- yeah, fucking. Clark was atop my mom, thrusting himself into her, and she was moaning and muttering in obvious pleasure. Although I was only 9 or 10, I actually became aroused for the first time in my life.

After that, my horizons were expanded. Not only did that lead to my eventually masturbating, but I also became increasingly attracted to my step-dad, though he had no way of knowing.

Clark's a construction worker so he has always had a gorgeous tan and a slim, yet muscular, body that he keeps in great shape. The truth is that he was a tremendous hunk and was more than a little pleasant on the eyes. Besides that, he was also the nicest guy I've ever met and never treated me like a kid, like most grown ups do. As I've matured, to me my stepfather has turned into one of the most handsome, sexiest guys I know.

Somewhere after about two years after they were married, it seemed that my mom and Clark stopped getting along. They didn't fight much, but there was just something in the air. That's not to say that they didn't fight at all; in fact, I overheard a couple of doozies late at night. What I didn't hear anymore were those sounds of pleasure coming from my mom.

Recently, over the last year or so, there were a few strange phone calls, and mom had to go out. I kinda thought that maybe she had another guy, but that was only a wild guess. Still, the looks on Clark's face and a few of his comments made me think that he thought so too.

I found out later that in the last couple of years my mother was losing interest in my step-dad, especially in the sex department, and Clark is one of those men who needs his quota of pussy daily. Even though he's thirty-two, my step-daddy looks years younger. My mother must have been crazy not to want to jump in the sack with him every chance she got. I would have. If the silly bitch didn't appreciate what a gorgeous hunk she was married to, then she didn't deserve him in the first place.

Anyway, remembering all the times I'd heard them, I now figured that if he wasn't getting any sex, that Clark was probably as horny as a dog in heat, and I wasn't much better. I'd recently broke up with my boyfriend, Ricky, who I'd been fucking since he took my cherry a year earlier, when I was fourteen. I don't know when the idea hit me, but I began to think it would serve both of us nicely if I tried to help my step-dad out. What harm could there be in that? All I had to do was let him know I wasn't the sweet little fifteen-year-old virgin he thought I was, and that I wouldn't mind some of what mom was missing out on.

I'd been thinking about him a lot while masturbating, wondering what his big cock would feel like sliding in and out of my recently neglected little cunny. I just needed the right moment to get his attention and let him know I was more than interested in a little incestuous fun without coming straight out and saying it.

At every opportunity I wore as little as possible around the house, much to my mother's annoyance. Sometimes, I didn't wear any bra or panties at all, and would innocently be in a position where my step-father could see right up between my legs. I'm sure once or twice he almost had a heart attack at the sight of my hot little twat poking out from under my short dress.

For a long time Clark pretended to ignore it, but as I began to get bolder, he started to get the message. I'd sit on his lap and grind my ass down over his cock-bulge or 'accidentally' lose my towel as I came out of the bathroom past their bedroom door (if my mom wasn't around). His occasional hard-ons seemed to become quite common when I'd manage to find a way to stir him up.

Of course, I was careful not to let Mom see any of this, but she was hardly ever home anymore anyway; she was always out at work or elsewhere, conveniently leaving Clark and me alone in the house together.

This all led to the day that I managed to seduce him. I suppose it wasn't all me; he must have been secretly thinking of doing stuff with me, but I was certainly much more aggressive than anyone would have suspected me of being.

It was a Saturday in the beginning of summer and I wanted to get a head start on my tan. My mom worked every other Saturday and this was a working day, so knowing that she wouldn't be back until late, I put on my favorite string bikini and hit our pool in the backyard to get some sun.

As I was lying there on my back on the lounge chair, my step-dad came outside to clean the pool. As he vacuumed the bottom of the pool and chatted with me, he kept sneaking glances at me, when he thought I wasn't looking. Because I've shaved my pussy clean since I started to grow hair between my legs, my bikini lines didn't show, and the skimpy strip of string-cloth between my legs concealed very little. I purposely kept my legs parted enough so he could see all the way up. It aroused me immensely knowing that Clark could see the outline of my hairless little cunt; I was excited to show it off to him.

I lay in the most subtly seductive poses I could think of, without being too obvious. It wasn't hard to notice the hard-on I was giving him. For sure, Clark had looked at my body over the last couple of years, and I guessed that I'd shown him enough that he had sometimes even fantasized about me, but by the look on his face and the lump in his pants, I suspect that this was probably the first time that he realized that I might be an available piece of pussy with a tight ass, firm tits, luscious lips and juicy twat.

Playing it to the hilt, I let my legs fall open a little more as I talked to him, running my hands sensually up and down my thighs every time Clark looked at me. When he wasn't looking, I tugged down my bikini tops to just above my nipples. To see his reaction when he looked back was really interesting.

Then, after he'd gotten a good long look at my tits, I rolled over to show him my ass. I must admit that I was feeling very wet knowing I was getting to him. Under the pretext of getting comfortable, I further spread my legs and lifted my hips a bit, knowing that my plump little pussy mound showed clearly through the fabric covering my crotch, and my young cunt-slit would be framed nicely by my firm, creamy buns. Clark was panting like a schoolboy by that stage, so I decided to really give him something to look at.

"Do you mind if I take off my top, Daddy?" I asked innocently. "I don't want to get any tan lines this summer."

"I, er, I don't er think that's a good idea, sweetie. Your mom wouldn't be too happy if I let you. She'd have a fit," he stammered. He was pretending not to be too interested, but I could see him swallow and lick his lips nervously.

"Aww Daddd -- She won't be home until later," I pleaded, then purposely added, "She doesn't have to know anything."

I saw something in his eyes I'd never seen before. "Umm, okay, baby, but make sure it's back on before she comes home."

I sat up on the side of the lounge. I acted as if I didn't even consider his presence as I undid the strings. When I removed my bikini-top and released my pert young tits, I heard him gasp. For some reason I suddenly felt my heart begin to race; I guess it was because I knew that my step-dad liked what he saw and that I was actually exciting a grown up man.

I purposely lay back, this time on my back again, and I arched my back slightly so he could get a better look. My tits aren't humongous, but the only girls in my class who are bigger in the chest are Joanie Stramm and Jenna Somethingorother.

Even though Clark was trying not to stare, my bared little breasts were like a magnet to him. My excitement was increasing, just knowing my big, handsome step-dad couldn't keep his eyes off my tits. I smiled sweetly.

"Do you think they need more sun, Daddy?" I asked, trying to keep my voice sounding casual and innocent.

"Huh?" he muttered, tearing his gaze from my chest with an effort.

"My boobs, silly!" I said with a grin, "Do you think I should tan them some more?"

"Er ... no ... I mean yes ... er, I guess so."

One look at my bare tits and he was an emotional wreck. I loved it! I knew my hunk of a step-dad was getting turned on and it aroused me something fierce. My hot little pussy was getting wetter and wetter and the bulge in his pants was getting bigger and bigger.

He must have started getting embarrassed, because he suddenly made some lame excuse about having to go back inside the house. He disengaged the vacuum, and then turned to leave. I had to act fast or the moment would be lost.

"Daddy!"

"Yes, sweetheart?"

"If I rolled over, would you please rub some lotion into my back?"

My step-dad stopped in his tracks and turned around. I gave him my best daddy's-little-girl-needs-her-daddy look and slightly raised my knees to keep his attention. He hesitated for a second, then took a deep, shaky breath and came over to me. He walked at an angle which told me that he was trying to hide his erection from my 'innocent' eyes.

"Sure, hon. If you want me to," he said. He was trying to sound disinterested, but the bulge in his pants that he'd been trying to hide was obvious now.

I sat up a little so he could sit down next to me and I made sure that my naked breast brushed against his arm as I handed him the tanning lotion. I could see his eyes grow big, and knew that big ol' cock of his was doing the same. I turned over onto my stomach side. My pussy was oozing like crazy and began to ache with that old familiar feeling. I needed his cock real bad! I'd seen it a few times and knew it was bigger than the two I'd had in me, and that thought excited me.

Clark poured my suntan lotion into his palms and began to massage it into my upper back. By then my heart was racing almost to the point of pounding, knowing that he was aroused and that I might actually get him to fuck me. I could hear his breathing pattern become heavy and erratic, and knew he was feeling like me, extremely horny. We were both in need of a good, hot fuck, so why not keep it in the family? I was sure that the only thing stopping us was his misconception of my innocence.

He rubbed the lotion into my shoulders and down my back, but stopped short when he got to my waist.

"Mmmmmm, put some on my bottom, Daddy. It's really dry, and it needs to be worked in. Do you mind?"

"Not if you don't, sweetheart," he muttered, "Lift your butt a little."

I got on my hands and knees and raised my ass, watching the look on his face over my shoulder. Clark was just staring at my stretch-nylon-covered pussy. Being only inches away, I was sure he could see the moisture leaking from my cunt slit. I wiggled my ass at him in fake annoyance.

"Come on Daddy!" I smiled. "Don't be shy... do it!"

"Huh?" His face was red and his hands were trembling.

"Rub the lotion into my bottom before I burn!" I grinned, knowing exactly what he was thinking when I asked him to 'do it'.

He licked his lips again and reached out, massaging the oily lotion into my upraised buns. I loved the feel of his big, masculine hands on my ass, rubbing and stroking my taut young flesh until it tingled. My pussy was tingling too ... for a different reason. I wanted my step-dad to rub me there too, but I had to move slowly so I wouldn't scare him off, which I seriously doubted now, because the way he was rubbing the lotion into my ass cheeks was more like fondling than massaging by then. Once, his fingers even slid a little way under the elasticized legs of my bikini bottoms. I had to suppress a gasp of pleasure as his hands slid between my legs, but he was only rubbing lotion into my inner thighs. God, it was frustrating!

"Mmmmmmmm! Ooooh Daddy, That feels so good! Up a bit!" I moaned sexily, hoping he'd get the message.

But his hands remained tantalizingly away from my pussy, as if he was scared of touching it ... which when you think about it, I guess he was. Hell, what man was brave enough to touch a 15-year-old girl? There was no doubt the fear of being caught molesting his step-daughter was imbedded deep in his conscience. I had to break down years of built up guilt in a matter of minutes or my step-dad would get 'cold feet' and my plan would fail.

So, the next time his fingers went close to my pussy, I pushed my ass slightly back at him. Sure enough, his fingers brushed over my mound.

"Nnnggggmmmm..." I couldn't suppress a soft moan.

I did it again and Daddy's fingers stayed there longer this time, lingering for one delicious moment on my hot, wet mound before moving guiltily off to continue massaging my thighs. Then he did again, and again I tried to let him know of my enjoyment by gently shifting myself to his hand.

After a couple more times, Daddy's hand was staying on my cunt for a lot longer and I could feel his fingers actually pressing into my cunt slit. I spread my legs wider and moaned sensuously ... it was now or never!

"Uuuummmmmm! Please touch me, Daddy!" I begged. "Put you hand on my pussy and rub me there. It feels sooooo nice!"

He caught his breath and momentarily didn't speak. I'm sure he was absorbing all that was happening with how he was feeling. He'd never heard me use such words, and I was hoping that I aroused him further just by using that term.

Finally, he rasped, "Jesus, baby! We can't! If anyone would ever find out ... especially your mother ... I'll be jail faster than..."

"I want you to, Daddy!" I interrupted, pressing my ass back against his hand. "I want you to fuck me!"

There, I'd finally said it. Now it was up to him, but just to convince him even further, I reached back and grabbed for the huge lump in his pants.

"Ohhhh, God!" he moaned as my fingers wrapped around his hardened cock-shaft. Then as realization struck him, he told me, rather than asked, "You're not a virgin, are you baby?"

"What do you think, Daddy?" I giggled, suggestively.

A long pause as his fingers kept rubbing between my legs.

Then, "I think I'm going to fuck you, that's what!" grinned Daddy, staring hungrily at my upraised little ass and cunt.

His inhibitions dissolved in a second as I reached behind me and rubbed his erection through his pants. Whatever fears or guilt that had been holding him back before were suddenly washed away by his lust for my hard young body. I moaned with a mixture of ecstasy and triumph as I felt my step-dad's big hand cover my little pussy-mound and squeeze it forcefully. My cunt-lips pressed together and hot pussy-juice leaked out into his palm as I ground my ass down onto his hand in a frenzy of lust.

"Uuuhh, baby, you're so wet!" he gasped. Clark seemed a bit surprised that his sweet little girl could get so aroused.

"You made me wet, Daddy," I smiled, looking back at him over my shoulder. "My pussy is hot and wet for you! Are you gonna fuck me now?"

"Ooohhh, sweetheart, yesssss!" he hissed, hurriedly pulling off my bikini bottoms with a wild flourish.

As soon as they were off, I started to lower myself so that I could turn over, but my step-dad clutched my hips and whispered, "Come down here, off the lounge, baby girl -- no, don't turn, keep that beautiful ass looking at me..." I slithered down off the chair. "Stay there -- yeah, like that, sweetie." He had brought me back to my original position on all fours, only now I was on the ground and totally naked.

Almost immediately I felt his face bury itself into my naked ass and I tingled when I felt his breath breathing there. I can't tell you how good it felt when his tongue lapped inside that crack and even thrust into my ass hole. My step-dad was actually kissing and licking my ass. My boyfriend would never put his mouth on me anywhere except my lips, so I guessed that doing stuff with Clark was going to be a whole new experience for me.

Then he was kissing and licking up my back and all the way to my neck and ear, where he nibbled and licked. Wild sensations were exploding within me. I heard a metallic whirr and knew that he was opening his zipper. Then he momentarily straightened up and pulled his tee-shirt over his head.

Suddenly I felt his prick touch the cheek of my butt and I caught my breath and then cried, "No, Daddy, not there..." I shifted to move.

"Stop," he whispered. His mouth was at my ear. He was panting. We were bent over, his body over mine leaning on me for support.

Then he stood up and took his hands away. I started to stand, too, but he put a palm against my back.

"No," he said. "Stay like that." His voice was ragged.

I had managed to scramble to a slightly different position with my elbows up on the lounge. My palms were slick against the cool wood of the seat I was clutching. My heart hammered in my chest.

"Please, Daddy, no, not there, please..." I exhaled. Without meaning to, I pressed my ass harder against his crotch.

He exhaled sharply in my ear.

"Please," I said again. I threaded my fingers through his and squeezed them. I held my breath.

"Shhhh, baby girl, shhhh. It's not what you think, hon. I'm just going into your sweet pussy from this side, okay?"

He ran his shaking hands over my ass. They felt hot and rough, calloused. He moved his left hand to my stomach. He moved his right hand lower. I closed my eyes.

"God," he muttered when he pressed his hand against my pussy. My faced was flushed from both arousal and embarrassment - I didn't know if it was normal for a girl to get as wet as I was. My breath caught as he pushed his fingers between my cunt-lips. They were so much bigger than my own. He kissed the back of my neck and I shivered. I never even realized that fucking could be done this way, and the thought excited me. I nodded eagerly and tried to look back at my horny step-dad.

He hesitated, pressing his cock against my pussy. He brought his left hand back to my stomach. My body tensed in anticipation. Then he grabbed me by the hips and slid his straining prick straight into my cunt from the rear.

"Aaaahhh," I groaned as it slid tightly into my moistened channel.

With his cock buried inside me, my step-dad paused. It didn't hurt. It felt it so hard and hot. I felt filled, stretched tight -- but no pain. He held me still.

"Relax," he whispered into my ear. "Take a deep breath." I had little time to catch my breath. His mouth was at my ear. He was breathing heavily as he whispered, hotly, "Is this what you wanted?"

I took a breath, and then I answered, "Yes."

"Good," he said, and nuzzled my neck as he pushed his cock into me again. We both moaned loudly at the deep penetration.

We stayed like that until his breathing slowed. With his right hand around me at the top of my pussy mound, he moved his left hand up under me, cupping my left tit, gently squeezing its nipple between two fingers. I tilted my head back trying to get him to kiss me because all those wild feelings were tingling within me.

He began to move slowly in and out of me, his right hand still on my pussy.

"Is this okay?" he breathed in my ear, and I nodded.

His thrusts made my pussy slide under his fingers. I strained toward them, wanting more. He pressed his cheek against my neck. I could feel the sweat on his forehead. He began to thrust harder.

My arms were beginning to tremble from the effort of holding us up. He worked his right hand about my pussy, some of the side of his hand between my lips, his palm rubbing on my clit, his fingers just above where his cock was still inside me. He moved his hand in slow, even circles. The whole episode of my step-dad fucking me and masturbating me at the same time was mind-boggling. My legs spread wider.

"Faster," I whispered.

He moved faster. My legs began to shake.

"Faster," I said again.

I could feel thin trails of sweat running down between my breasts. His grip around me tightened.

"Faster!" I said frantically. My legs buckled. He pulled me back against him. I reached down and covered his hand with one of my own, pushed it hard against my pussy as I began to explode within.

"Oh Daddy Daddy Daddy... !"

"Oh God," he said through gritted teeth. I pushed back into his thrusts. The hand on my breast squeezed harder. His cock seemed to swell inside me. I bit my lip. My knees went weak as he moaned against my shoulder. I tightened my pussy around his cock.

Clark was so horny, he was now pumping his cock into my tight, hairless little pussy like a piston. He must have been exceptionally aroused, because he was fucking me like a wild man. My ass shook and my tits jiggled as my handsome step-dad plowed into me with jack-hammer strokes.

His big cock was stretching my poor little fuck-hole much wider than Ricky's boyish prick had ever done, pushing me quickly towards a powerful orgasm. Another couple of strokes of my step-dad's thick cock and I was cumming like crazy. I pushed my cunt back at his cock and arched my back, squealing and whimpering so loud it was a wonder the whole neighborhood didn't hear me.

"Fuck!" he shouted and shoved into me so hard I nearly lost my balance. He moved both hands to my waist and held me close.

Clark kept slamming into me, fucking me through my orgasm as his own climax began to build rapidly. I could feel his cock throbbing inside me.

He was suddenly holding me tight, muttering, "I don't wanna pull out, don't wanna pull out..."

I screamed back at him, "Don't Daddy ... don't pull out... !"

I heard him snort and felt his pistoning cock swell even bigger as he came with a shudder. My own step-dad was actually coming in me! The thought that he was filling my fifteen-year-old cunt with his incestuous seed made my knees weaker.

"Ohhhh! Ohhhh, shit! You gorgeous little fuck!" he groaned, as he emptied his balls into my still-convulsing twat.

We collapsed together, panting. We slumped forward with Clark on top of me, his twitching prick still buried deeply in my hairless, cum-drenched little fuck-hole. I was squashed beneath his big, muscular body, but I didn't care ... my wonderful, handsome step-dad had fucked my cunt and made me cum like I'd never, EVER cum before.

Finally, he pulled his softened dick from my somewhat sore pussy.

"Come here sweetie," he managed to say between panting breaths. He had rolled down onto the floor on his back and wanted me to lay with him. He laid back, his arms and legs splayed. Cum trickled down the side of his cock. I wondered how much of that stuff had been ejaculated inside me. It probably didn't matter anyway. I shut my eyes and pressed my burning face to the cold floor.

Suddenly, a honk from the front of the house.

"Shit!" bellowed Dad, hurriedly moving to gather his pants and tee-shirt. "Get your clothes back on quick, sweetheart! ... Your mother's home for lunch!"

I scrambled into my bikini and lay back on the pool chair just in time, as Mom opened the back door looking for us. Clark was standing by the edge of the pool fishing out leaves and I was lying back lazily on the chair with my towel around my waist by that time. We both waved to her nonchalantly but underneath my heart was pumping madly; and I suspect that Clark's was too. To any casual observer, it looked like the perfect backyard family scene, but Mom would have shit in her pants if she knew that only minutes before, my step-dad has his long, hard cock rammed up my tender fifteen-year-old cunt and we were fucking like rabbits!

Mom was her usual obnoxious self and complained to Clark, "Didn't you hear the horn? I needed help with groceries."

"Sorry," my step-dad called, as he put down the leaf net. "I'll straighten this stuff out and be right in."

"Sorry mom," I added, "I was nodding."

"Let's go inside, I got cold cuts for sandwiches," Clark said to assuage my mom. Mom went in first and Clark gave me a conspiratorial wink as I got up to go in behind her. I knew after what happened he would be watching my butt so I gave it a seductive little wiggle and was rewarded with an intimate little squeeze of my ass as my step-daddy silently let me know how much he appreciated our first fuck. I was determined not to let it be our last!