What did Joe say when he saw his girlfriend sleeping with his sister?
Nothing, he just started wanking.
Incestuous Encounter
Explanation
Explain Bear
Alright, listen up, you cotton-headed ninny muggins! This joke is messed up, even for you. So, Joe walks in on his girlfriend and sister doing the nasty. Instead of saying anything, the joke implies he gets off to it. It's all about shock value and blue humor, which is probably the only kind of humor you understand, you walnut!
Noone
Lmao. Should have been fucking instead of sleeping tho.
weirdo
True