The Big ImageBoard (TBIB) - anal anal penetration anthro anthro on anthro anthro penetrated anthro penetrating anthro penetrating anthro bed biped black body black fur black nipples black penis black tail border crt effect digital media (artwork) distortion doggystyle duo equid equine erection facial piercing from behind position fur furniture genitals grey body grey ears grey fur grey spots grin horse light body light fur male male/male male penetrated male penetrating male penetrating male mammal markings narrowed eyes ninetht nipples nose piercing nose ring on bed open mouth penetration penis penis base piercing pillow pink tongue ring piercing septum piercing sex smile spots spotted body spotted fur static tail tail grab teeth tongue white border white pillow