Was at my mom's house staying the night up late getting a snack. I thought everyone was sleeping. As I was leaving the kitchen her boyfriend, totally naked and fully erect,runs into me. He says,"oh sorry"but for some reason I said, "damn" when I looked at his cock. There was an odd silence and then he asked if I, "wanted to".

Of course I said okay, and we hurried behind the stairs and I got down on all fours and said fuck me in the ass. His dick was all slimy and soon he was fucking me in the ass. I was going nuts trying to be quiet. It wasn't long and he nutted deep in me and grabbed my ass tight when he came. That was that,and he pulled out and left. I was gushing cream walking to the bathroom. It was like nothing happened the next day. I think I liked it.