rule 34 2014 4 toes abs all fours anal anal fisting anal sex anal vore anatomically correct anatomically correct anus anatomically correct penis animal genitalia animal penis anthro anus ass back muscles backsack balls being watched biceps big penis biped black and white black border border building claws clenched teeth clydesdale comic digital media artwork draft duo focus equine equine penis feathering feet fisting fully sheathed fur getting erect group hair harness head first hi res hooves cock larger anthro larger male licking licking lips line art looking back male male penetrating mammal mane medial ring monochrome mostly nude multiple scenes muscular muscular male mustelid nude oral otter outside pandottermon pecs penetration penis perineum plantigrade puffy anus rannik rimming rope sex sheath short hair size difference smaller anthro smaller male snout surprise tail wraps teeth thick penis thomas burzah toe claws toes tongue tongue out vein veiny penis vore webbed hands whiskers wide eyed wraps 2535000