FURVERT!

animal_genitalia animal_penis anthro biped black_hair equid equine equine_genitalia equine_penis erection flared_penis fur genitals grey_body hair harness hi_res horse kneeling leather leather_harness long_hair male mammal medial_ring mostly_nude nipples penis sheath side_view solo straddling tail tryst_entangled unusual_anatomy unusual_genitalia unusual_penis white_body white_fur