To be fair to Nina, my resentment toward that scene goes more toward the creators using her for fan service and is less of her fault. I get equally annoyed with all their shots of naked Kallen. I don't like when girls are used for the SHOCK factor in that way. Seed would sometimes balance things with fan service on the guys too. (Not that Geass is Seed but I want an easy shonen mech comparison.) I want more of that.

Well, in fiction mentality, blowing up half your side makes you nuts = interesting while random scenes of masturbation makes you weird = not sure how to feel about.