2boys, abs, alternate_costume, aqua_hair, ass, bara, bare_pectorals, beach, beard, blue_eyes, bulge, dark-skinned_male, dark_skin, day, eyewear_on_head, facial_hair, fins, fish_boy, from_behind, large_pectorals, male_focus, male_swimwear, mature_male, multicolored_hair, multiple_boys, muscular, muscular_male, nape, navel, nipples, outdoors, partially_submerged, pectorals, sharp_teeth, shell_necklace, short_hair, stomach, streaked_hair, stubble, sunlight, swim_briefs, teeth, thick_thighs, thighs, water, white_hair