2boys, abs, bara, barbell_piercing, beard, black_hair, chest_hair, clenched_teeth, earrings, facial_hair, forehead-to-forehead, hair_over_eyes, heads_together, jewelry, large_pectorals, looking_at_another, male_focus, mature_male, multiple_boys, muscular, muscular_male, mustache, navel, nipple_bar, nipple_piercing, nipples, original, owariya_ranko, pectorals, piercing, short_hair, teeth, upper_body