Rule 34 Dev - 2023 animal_genitalia animal_penis anthro artist_name balls biped black_balls black_mane black_tail bodily_fluids brown_body colored countershading english_text equid equine equine_genitalia equine_penis equine_tail erection fingers genital_fluids genitals hand_on_own_penis heracles_(theunscforces) hooved_fingers hooves horse looking_at_viewer lunalei male mammal mane nipples nude penis precum presenting presenting_penis sitting solo tail text url white_body white_countershading|11624072936