2boys, back_tattoo, bare_shoulders, black_nails, chest_tattoo, demon_boy, demon_horns, demon_tail, demon_wings, fingernails, grey_hair, hair_between_eyes, horns, leg_tattoo, looking_at_another, male_focus, multiple_boys, navel, neck_tattoo, parted_lips, purple_eyes, sharp_fingernails, sharp_toenails, smile, tail, tattoo, teeth, toenails, topless_male, wings, yaoi