rule 34 absurd res animal genitalia anthro ass ass up balls black body black fur black sclera chest tuft collar cuff restraint curved horn demon femboy fully sheathed fur genitals girly gold metal gold collar gold cuffs grey background grey body grey fur half closed eyes hi res horn lagomorph leporid lying male mammal metal collar metal cuffs narrowed eyes on back penis perineum rabbit restraints sheath simple background solo spread legs spreading the xing1 tuft 7535476