True story...back in my "highschool days", I had this girl who was a good friend that I was super attracted to, but she was involved with someone else.  Heck, even her parents adored me and constantly told me "you 2 should be together".  Well one night, she was griping about how he was not taking care of her needs and I jokingly said something along the lines of "bet I could rock your world with my tongue alone".  Must've struck a chord, because she said "do it now" and her pants came off.  I was right in the middle of going at it when her dad walked in.  I about died.  He took one look...realized it was me and said...its about damn time...if it was that worthless idiot, I'd be furious...but since its you....you've got my blessing to do whatever you want with her...just don't get her knocked up and he left the room.

Turned out to be a good day for me cause she did end up letting me screw her too