2girls, d, ^_^, beach, bikini, blonde_hair, breasts, cleavage, closed_eyes, collarbone, dutch_angle, grin, hair_between_eyes, hair_ornament, hair_scrunchie, hairclip, halterneck, idolmaster, idolmaster_cinderella_girls, jougasaki_mika, jougasaki_rika, long_hair, looking_at_viewer, medium_breasts, multi-strapped_bikini, multiple_girls, navel, open_mouth, outdoors, pink_hair, ponytail, ryus, sandals, scrunchie, selfie, siblings, sisters, smile, swimsuit, v, very_long_hair, white_bikini, yellow_bikini