FURVERT!

alexvalyutin animal_genitalia animal_penis appaloosa aroused balls black_hair black_hooves black_mane blaze_(marking)blue_eyes draft_horse ears_front equid equine equine_balls equine_genitalia equine_penis erection facial_markings feral flared_penis fur genitals grey_balls grey_body grey_fur grey_sheath hair head_markings hi_res hooves horse imminent_masturbation looking_at_genitalia looking_at_own_genitalia looking_at_own_penis looking_at_penis looking_at_self male mammal mane markings medial_ring mottled mottled_genitalia mottled_penis penis quadruped raised_leg sheath smile solo vein veiny_penis