2girls, ass, bangs, bare_arms, bare_shoulders, bikini, black_hair, blue_sky, blush, breasts, brown_eyes, covered_mouth, day, eyebrows_visible_through_hair, from_behind, green_bikini, halterneck, highleg, highleg_bikini, long_hair, looking_at_viewer, looking_back, multiple_girls, nose_blush, outdoors, parted_lips, side-tie_bikini, sky, small_breasts, string_bikini, swimsuit, thong_bikini, white_bikini