FURVERT!

1:1 anatomically_correct anatomically_correct_genitalia anatomically_correct_penis animal_genitalia animal_penis anthro balls biceps big_penis black_balls black_border black_sheath bodily_fluids border brown_body brown_fur crotch_shot cum cum_string duo equid equine equine_genitalia equine_penis erection flared_penis fur genital_fluids genitals grey_body grey_fur hi_res horse intraspecies kneeling laser_(artist)leaking licking lying male male/male male_penetrated male_penetrating male_penetrating_male mammal medial_ring muscular navel nude on_back oral penetration penis precum saliva saliva_string sex sheath simple_background sitting tongue tongue_out vein