When I was a 16 year old boy, me and my 19 year old cousin were messing around one afteroon at his house. He had always told me I looked and acted more like a girl than a boy. Anyway he showed me his dick, which was huge compaired to mine, he kept at it, and we ended up naked. He was on his back on the bed and wanted me to straddle him and rub my ass on his dick. So after a little while his dick was in my ass, it kinda hurt, but it also felt kinda good, so I started rocking back and forth on it. He kept saying, yeah bitch, ride that cock, it was really feeling good so I kept doing it, then he said, if you don't want your ass filled with cum, you better get off that cock. But I liked it and didn't stop, suddenly he put his hands on my hips and thrust upward hard and fast about a dozen times. He said, you should've got off, but its too late now, you just got fucked, and did most of it yourself. I felt really embarrassed about it, but he never menitoned it again, and I've always wondered what he was thinking when I was ridding his cock like a girl.