FURVERT!

abs animal_genitalia animal_penis anthro appaloosa aroused balls black_hair black_hooves black_mane blaze_(marking)blue_eyes blush bodily_fluids draft_horse equid equine equine_genitalia equine_penis erection facial_markings flared_penis fur genitals grey_balls grey_body grey_fur grey_sheath hair half-closed_eyes head_markings hi_res holding_own_penis holding_penis hooves horse imminent_orgasm looking_at_viewer looking_pleasured male mammal mane markings masturbation mottled mottled_genitalia mottled_penis narrowed_eyes open_mouth penis sheath sitting smile solo sweat tail teeth teeth_showing tongue touching_own_penis touching_penis vein veiny_penis vincedots