2girls, ahoge, bare_arms, bare_legs, bare_shoulders, bikini, black_hair, blue_bikini, blue_bow, blue_one-piece_swimsuit, bow, breasts, brown_eyes, cleavage, collarbone, grey_hair, groin, hair_between_eyes, large_breasts, locked_arms, long_hair, looking_at_viewer, multicolored_hair, multiple_girls, name_tag, navel, one-piece_swimsuit, onii-chan_wa_oshimai!, oyama_mahiro, oyama_mihari, pink_hair, purple_hair, school_swimsuit, siblings, sisters, small_breasts, smile, stomach, swimsuit, thigh_gap, twintails, two-tone_hair, v, zokusei_unei