I was at a dance and was hoping to have sex with my date. It was going to be my first time, though she had already done it with another boyfriend before me. I was saving up and horny as hell.

During the dance we did a little grinding. She was in a really tight dress and asked me if I could feel her thong. That got me excited, and she loved grinding on my cock. Next thing I know I explode in my pants. The cum oozed out all over my pants and left marks on her backside. We sat down for the rest of the dance so taht no one would see. Her dress looked worse than my pants (black pants, light blue dress and the stains didn't come out after a dry clean).

We had sex later that night and a few times after that, but she was always mad at me for ruining the dress, so we broke up a few months later.