2boys, arm_hair, assisted_exposure, bara, bare_pectorals, beard, belly, black-framed_eyewear, black_hair, blonde_hair, blush, chest_hair, couple, facial_hair, glasses, holding_hands, large_pectorals, male_focus, mature_male, multiple_boys, muscular, muscular_male, mustache, navel, navel_hair, necktie, necktie_removed, nipples, old, old_man, open_clothes, open_shirt, pectorals, plump, round_eyewear, short_hair, stomach, thick_eyebrows, undone_necktie, undressing_another, yaoi