Where someone at a party passes out after drinking too much alcohol, then a guy jerks off and ejaculates onto their bare ass.
Girl #1: Did you see Mike did at the party last night?
Girl #2: I know - he's so disgusting,what a fumble freak.
When you're running and you can feel your penis flapping around.
No dude, I don't wanna run today - newton's third law always gets me...