when participating in love making with one's girlfriend in the "doggystyle" position, mention to hear that you had participated in the same act with her sister (or best friend) the night before. As she tries to get away, you continue to hang on, like riding a bucking bronco. Stay on for 8 seconds and you're the winner.
Alex told me that he wanted to break up with his girlfriend Gwynevere, so he pulled a rodeo on her stankin ass. He only stayed on for 7 seconds though, but that's still good. Here dude, I'll show you. We got it on tape.