2boys, abs, bara, beach, beard, blush, bulge, chest_hair, dark-skinned_male, dark_skin, dolphin_shorts, facial_hair, from_side, green_male_swimwear, imminent_kiss, ken_(suyohara), kuma_(suyohara), large_pectorals, leaning_forward, male_focus, male_swimwear, mature_male, multiple_boys, muscular, muscular_male, nipples, original, outdoors, pectorals, red_male_swimwear, sand, short_hair, shorts, sideburns, size_difference, standing, stomach, stubble, suyohara, thick_eyebrows, thick_thighs, thighs, topless_male, water, yaoi