rule 34 altagrin amputee animal genitalia ankle cuffs bound chains claws collar demon facial markings fur genital slit hair head markings hi res horn humanoid humanoid pointy ears incubus leg markings long hair looking at viewer male male only markings membrane anatomy membranous wings missing arm multi nipple navel nipples pink eyes scar shackles sitting slit smile smirk socks marking solo white fur white hair white nipples white skin wings wrist cuff 3268791