Rule 34 Dev - 5_fingers abs animal_genitalia animal_penis anthro areola balls biceps big_muscles big_penis biped black_and_white closed_eyes computer computer_keyboard computer_monitor cum cumshot desk desk_chair ejaculation equine equine_penis erection flared_penis hatching_(technique) horse horsecock humanoid_hands male male_only mammal mane masturbation misterstallion monochrome muscular muscular_male navel nipples open_mouth orgasm orgasm_face pecs pencil_(artwork) penile_masturbation penis portrait quads shaded side_view singing sitting sketch snout solo spread_legs spreading three-quarter_portrait traditional_media_(artwork) triceps two-handed_masturbation|2718072720