1boy, 1girl, ass, bad_pixiv_id, breasts, cleavage, collarbone, competition_swimsuit, covered_navel, greyscale, highleg, highleg_swimsuit, kekemotsu, large_breasts, legs_together, monochrome, one-piece_swimsuit, open_mouth, original, poolside, standing, swimsuit, thighs, towel, towel_around_neck, wet