As a fourteen year old girl, I had probably had hundreds of sleepovers with my friends, just about one every weekend. But one weekend something exciting happened.
It was about 8:00 in the morning, and none of the other girls were up, it was just me. I was sleeping on a twin mattress on the floor with my best friend Lana (We always slept together)
When I woke up, we were facing each other, both our knees curled up towards our chests comfortably. My right knee was placed at a slightly odd angle directly against her crotch. And though her legs were closed, I could feel the heat start coming from her a little after I woke up.
She was still asleep, but I could feel her start twitching a bit, and every once and a while she would actually bump into my knee. I wasn't sure if I should move it or not, since I was scared she would wake up. I didn't want her to be embarrassed or anything if she realized what had been happening. But then she started to groan a little and I could feel the heat from her increasing, and I didn't actually want to wake her up. It was kinda.... Hot. So I waited, feeling pretty hot myself. Then she gave one final jerky twitch and the heat died down.
About five minutes later she woke up, smiling and snuggled into me. To this day, I don't know if she had any conscious knowledge that I had anything to do with that orgasm.