2boys, 4koma, anger_vein, angry, blue_hair, blush, brown_hair, bulge, comic, embarrassed, grin, hinghoi, long_hair, male_focus, male_swimwear, multiple_boys, navel, nipples, nose_blush, open_mouth, original, otoko_no_ko, pectorals, smile, spoken_anger_vein, swim_cap, swim_trunks, thumbs_up, topless_male, v-shaped_eyebrows