>>56359231Depends, I've seen it interpreted in a few types of ways. There's that one FGO doujin where Shuten gets a horn broken off while fucked and it makes her nose start bleeding from the pain. Of course there's the interpretation that it's just a sign of status instead of connected to them feeling pain which also makes the thought of degrading girls with horns by breaking it off. Personally I'm a fan of when it's written that they feel pleasure from them getting rubbed because that makes hurting them hotter.