Rule 34 Dev - 1boy animal_genitalia_on_humanoid anthro athletic athletic_male balls centaur diphallia diphallism equine equine_taur fully_sheathed horsecock_on_humanoid kitsune_foxtaur long_body male male_focus male_only mammal monochrome multi_balls multi_genitalia multi_leg multi_limb multi_penis muscular muscular_male on_hind_legs penis sheath sketch sleipnir solo solo_focus solo_male standing taur toned toned_male|3340436880