I was 16 and dating the sexiest girl I've ever known. She had huge, firm tits, a perfectly round ass and the sweetest curves imaginable. Well, my best female friend was having a house party while her parents were out of town. There were maybe 15 people there, not a large crowd, but a bunch of us stayed over for the night.
My girl and I crashed in the living room... as did the hostess and another friend of ours. It was only a few minutes after the room had gone quiet when I started to gently caress my girl's delicious behind. She rubbed herself up against my leg and I could instantly tell she was hot and wet. I reached under her shorts and panties, traced my fingers down the deep crack of her ass, and slid a finger into her dripping pussy. She was so hot it shocked me at first. Of course she started to breath quickly, and moan a little, but then she got aggressive and pulled my boxers down to my knees. She wrapped her hand around my cock and stroked me slowly. I tried to guide her on top of me, but she resisted, only because there were other people in the room no more than 5 feet away.
I didn't care about anything but sliding into my girl's pussy, so I rolled us both over, with me on top, tore down her shorts and teased her clit with my cock. She loved that and grabbed my ass hard, pulling me inside her. We started in a slow rhythm, but it wasn't long before I was putting every ounce of strength into fucking her. She tried her best not to make any noise, but we couldn't stop our grunting and moaning.
I looked up to make sure everyone else was still asl**p, and just at that moment my best friend rolled over with her eyes wide open. I knew she saw us, and she could tell I was watching her. But, strangely enough, I didn't want to stop looking at her. I kept fucking my girl harder and harder but never took my eyes off my friend... she was beautiful in that light, with her big brown eyes and full lips.
I started to imagine that I was on top of her, pushing her legs back to her chest and driving my cock into her waiting pussy. That fantasy took me to the edge, and when I looked down at my girl and saw the expression of pure ecstasy on her face I had to cum. Pulling out I got up on my knees and in plain view of anyone watching released three huge loads of cum onto my girl's chest and stomach. She reached up and squeezed the last drops out of me... while my best friend rolled back over and pretended to sl**p.