4boys, all_fours, anal, anal_object_insertion, artist_name, ass, ass-to-ass, back, bikini_tan, blonde_hair, blue_eyes, borrowed_character, brothers, brown_eyes, couch, cum, cum_in_mouth, cum_on_ass, cum_on_body, cum_on_tongue, cum_string, cumdrip, dark_skin, dildo, double_dildo, erection, eyelashes, facial, fellatio, foreskin, group_sex, hairband, hand_on_another's_head, hands_on_hips, head_out_of_frame, incest, lips, long_hair, looking_at_another, looking_back, looking_up, male_focus, multiple_boys, multiple_penises, muscular, navel, object_insertion, open_mouth, oral, otoko_no_ko, penis, perineum, phimosis, saliva, sex_toy, shared_object_insertion, siblings, sweat, tan, tanlines, testicles, tongue, tongue_out, uncensored, watermark, yaoi