2boys, abs, aegir_(housamo), age_difference, aqua_hair, bara, bathing, beard, blue_eyes, brown_hair, bubble, completely_nude, dark-skinned_male, dark_skin, facial_hair, fins, fish_boy, hinokumo_f, large_pectorals, looking_at_viewer, male_focus, mature_male, multicolored_hair, multiple_boys, muscular, muscular_male, no_nipples, nude, on_lap, on_person, pectorals, protagonist_1_(housamo), same-sex_bathing, shared_bathing, short_hair, sideburns, size_difference, stomach, streaked_hair, thick_thighs, thighs, tokyo_afterschool_summoners, water, white_hair, yaoi