Rule 34 Dev - 3d animal_genitalia animal_penis anthro anus ass backsack balls big_penis equid equine equine_penis facial_piercing gay genitals hi_res horse looking_at_viewer looking_back lying male male_only mammal mask moreuselesssource moreuselesssource_(artist) nose_piercing nose_ring on_front penis piercing puffy_anus solo tail_wraps wraps|4553514344