2girls, black_hair, bottle, breasts, cleavage, closed_eyes, copyright_notice, denim, denim_shorts, dolphin_wave, hagane_otsuki, holding, holding_bottle, japanese_clothes, kurenashi_yuuri, large_breasts, long_hair, lying, marvelous, multiple_girls, on_back, outdoors, purple_hair, red_socks, seiza, short_shorts, shorts, sitting, sleeveless, socks