5boys, abs, aion_kiu, bara, beard, black_male_swimwear, blue_scarf, bulge, cloud, cross_scar, eyepatch, facial_hair, feet_out_of_frame, forked_eyebrows, from_below, hair_strand, hand_on_another's_shoulder, large_pectorals, leaning_forward, looking_at_viewer, male_focus, male_swimwear, mature_male, multiple_boys, muscular, muscular_male, navel, nipples, old, old_man, original, outdoors, pectoral_docking, pectoral_press, pectorals, scar, scar_on_chest, scarf, short_hair, sideburns, smile, sparkle, stomach, swim_briefs, thick_eyebrows, thick_thighs, thighs, topless_male, water, white_hair, yaoi