2boys, abs, bara, bare_pectorals, beard, black_hair, boxers, brown_pants, bulge, chest_hair, couple, facial_hair, height_difference, kiss, large_pectorals, male_focus, male_underwear, mature_male, multiple_boys, muscular, muscular_male, navel, nipples, open_clothes, open_shirt, pants, pectorals, shirt, short_hair, thick_thighs, thighs, underwear, undressing, white_background, white_hair, white_shirt, yaoi