Well, his underwear stinks even after I wash them. Idk if it's just a man butt thing.. idk if man butts stink I've never smelled his butt so I don't know and holy hell I don't want to. And it's not like a shit smell either, it's like a dirty sock smell.  I pull them out of the dryer and everything else smells fresh and good while his underwear, wow. I cannot get the sweaty man butt smell out of them.