<human>: Said friend and I were discussing our kind of taboo fetishes.  When he was in college he was an RA for a coed dorm.  He admitted to using his keys to break in to some of the girls' rooms and steal panties, and then, y'know, with them.

I played it off like I wasn't too freaked out.  The panty thing doesn't bother me (I honestly find it hot), but the whole theft (especially of that nature) is pretty fucked up.  He's always been an amazing, caring guy and this was a few years back before I knew him.  He apologized for telling me, and guaranteed me he would never do it again.  He clearly sensed the shift in our light and natural conversation.

I'm not really sure how to act at this point, or how to bring it up.  Should I tell him that I find it quite a bit fucked up?  Or just let it slide?

Can you provide a brief rundown of the text in within 3 sentences?
<bot>: Friend stole panties from girls' rooms to wank with.  Not sure whether or not to be freaked out.