My cousin and I had always been very close, we were the same age and our families lived near one another, but her folks moved away when she was 12 so it had been a few years since we had gotten together. Our families were going to be sharing a cabin at a lake for the summer and I was looking forward to seeing Karen once again. Wow!!! What a difference a few years make, Karen has blossomed into a young woman, when she walked in the front door I couldn't help but notice she had tits!!!, and nice ones too. Her hair hung down below her shoulders, she had long thin legs, and her tight jean shorts showed off a beautiful little ass, I was in love. That first day we spent catching up on kid stuff, but the whole time I kept thinking how much Karen had grown. We decided to go for a midnight swim just to get away from the adults for awhile, so at midnight we both snuck out our cabin windows and headed for the beach. I peeled off my shorts and t-shirt and headed for the water in just my swim trunks, the coldness shrunk my dick right away, but that was about to change. When I looked back to the beach to see what was keeping Karen I got a pleasant suprise. Karen had stepped out of her top and shorts and was now removing her bra and panties.......she was going skinny dipping. I watched as she hooked her thumbs in her satin panties and moved her hips from side to side to let them slide down her hips, she kicked them aside when they reached her ankles. She reached up and undid the front clasp of her bra and let it fall off her shoulders, her breasts stood out in the moonlight. Then Karen slowly walked to the waters edge and headed towards me, with long powerful strokes, she was always a good swimmer. When she reached the waist high water I had stopped in she noticed I still had my swimsuit on and asked why. "I didn't know we were skinny dipping" was my feeble reply, but before I could finish it she had dove underwater and pulled my suit down around my ankles and pulled my suit away. She bobbed up out the water triumpantly waving my suit and yelling "first one to the platform gets a kiss", with that she swam towards the platform in the middle of the lake leaving me stunned and standing naked. I tried to catch her but she had good lead on me and made it easily to the platform first, I watched her climb out of the water and could see her tight little ass as she moved up the ladder, she sat on her knees waiting for me to catch up. "I guess I win" she laughed as I finally reached my goal and started to climb aboard forgetting that I had no swimsuit on. "Well you owe me one kiss" she said and came over to where I was standing, she had put my suit on but her chest was still bare and the cold air had made her nipples hard. She pressed them against me and put her lips to mine, her hands pulled me close to her and I could feel my cock beginning to grow, as we kissed each other, our tongues intertwined. Her hard little nipples were like two hotspots against my chest, I could feel her heart beating, feel her hands exploring my ass cheeks, her breasts crushed against me. "I want my swimsuit back" I said "if you want it, you'll have to take it" she whispered. I laid her down on the platform and grabbed at my suit with both hands, she didnt resist as I pulled it from her legs and tossed it aside. She laid there naked her breasts heaving, her legs parted just enough so I could see the pink of her pussy lips. "I'm getting a little cold,can you warm me up" she said as she reached up and pulled me down on top of her. Our bodies blended perfectly, my cock head laid against the downy hair of her cunt and when she lifted her legs I could feel her open up to me. With long slow strokes I entered her hole, it was tight, and warm, but already wet from her excitement. She egged me on by putting her hands on my ass and pulling me into her deeper and deeper. She moaned my name with every stroke and circled my asshole with one of her fingers, when she knew she was ready to climax she forced it into my asshole and I came inside her, filling her cunt with warm cum over and over. We spent the rest of the night fucking and sucking but those stories will come another time.