rule 34 2018 5 fingers abs anal anal sex anatomically correct anatomically correct penis animal genitalia animal penis anthro anthro on anthro arm grab balls biceps black balls black eyebrows black fur black hair black lips black mane black penis black stripes black tail blue eyes closed eyes clothed clothing cum duo equine equine penis erection eye roll eyebrows from behind position fur girly grey background grey fur grey lips grey nipples hair hi res cock inflation kaeldu large insertion lips long hair male male penetrating mammal mane mask medial ring multicolored fur multicolored mane muscular muscular male navel navel piercing nipples nude open mouth pecs penetration penis piercing pink clothing prison guard position quillu rubber sex signature simple background standing sex stomach bulge striped fur stripes two tone fur two tone mane white fur white mane yaoi zebra 2697497