The rage on Kaph's face matches Ren's.

At first.

Then, the more Ren goes on, the more Kaph's expression shifts into a strange mix of anger and utter, sincere confusion.

"W... What? What the fuck are you talking about? I'm not cock-hungry if I like sticking my dick in women, that means they're hungry! For my dick!" He gestures towards his crotch. You know, in case his point isn't clear enough.

Then he adds, as if he feels he needs some punctuation to hide his bafflement, "... Jackass!"