2girls, black_hair, black_shorts, blonde_hair, blue_eyes, blue_one-piece_swimsuit, blush, breasts, collarbone, cowboy_shot, dark-skinned_female, dark_skin, grin, jewelry, kofune_mio, kofune_ushio, long_hair, looking_at_another, midriff_peek, multiple_girls, necklace, one-piece_swimsuit, open_mouth, seashell, shell, shell_necklace, shirt, short_hair, short_shorts, short_sleeves, shorts, siblings, simple_background, sisters, smile, sssbii, standing, summertime_render, swimsuit, white_background, white_shirt