2boys, alternate_hairstyle, androgynous, ass, assisted_exposure, back, barefoot, blonde_hair, boxer_briefs, couple, dimples_of_venus, from_behind, hand_on_another's_thigh, kneeling, long_hair, male_focus, male_underwear, male_underwear_pull, multiple_boys, otoko_no_ko, partially_undressed, shoulder_blades, sitting, topless_male, underwear, white_hair, yaoi