I was 9 and I was at my room with the neighbors' kid who was a few months younger than me, my older sister was in the other room.
We were playing and then he suggested a new game that he learned (god only knows where he did) which involved playing with each others' dicks, at first I said no and resisted, but he was such a nag, so we did it, but I was extremely nervous, then he got a stiffy and introduced me to another game which involved putting his stiffy up my butt hole, I didn't care so I let him do it, he did it for a minute or so, and I don't really remember enjoying it..
Later that boy used me a few times through out the next 2 years as his bitch boy, and whenever we were alone at home he'd ask me to play the dick-up-the-butt game, and he tried to convince me to try it up his butt, but at the only time I was about to do it, his mom came home and we dressed up quickly, we never did anything sexual ever again after we realized what we were doing was actually sex, till this day, we never spoke of how he molested the innocent me for 3 years, though once I hit puberty, I wanted to rekindle that affair, but I never got the nerve to do, and I've never had sex since that last experience at the age of 11 with him, so I consider myself a virgin!