1boy, bara, beard, curled_horns, dark-skinned_male, dark_skin, demon_boy, demon_horns, ear_piercing, facial_hair, finger_in_own_mouth, horns, kuroshima_kurishiro_(muyi24108414), large_pectorals, male_focus, mature_male, muscular, muscular_male, nipples, nude, original, pectorals, piercing, short_hair, skin-covered_horns, solo, upper_body