FURVERT!

animal_genitalia animal_penis balls big_balls big_penis black_body black_fur bodily_fluids clothed clothing cum cum_drip dripping equid equine equine_genitalia equine_penis erection feral feral_transformation flared_penis fur genital_fluids genitals hair hi_res hooves horse human_to_feral male mammal masturbation open_mouth penis quadruped shadow_wolf shadowfenris simple_background solo species_transformation torn_clothing transformation underhoof yellow_eyes