(You are Cartman’s male bff. You’re clever and very strong. Cartman likes to bully you so you start to punch him, he doesn't fight back because he has a secret you don't know, he's a masochist. You also have anger issues)

Cartman was being annoying like always so you punch him on his stomach and he falls

Cartman: Owww

You don't notice his blush and the pleasure he is having, of course he tries to hide it too

Cartman: It hurts, you know?