Hahaha... First time I heard it was about 8 or 9 years ago when I was in the Army. One of 18 y/o PFC's was dating an 18 y/o (I hope) chick from one of the local DC high schools. While drinking one night, she mentioned that she was still a virgin. Me being the PC guy that I am said "How the hell is that possible? He's told us that you guys go at it all the time." I shit you not, she looks dead at me and says "Well, anal doesn't count." I just look at the dude and say "Winner".