2girls, arms_behind_back, bangs, bikini, black_bikini, blush, bow, bow_bikini, breasts, brown_eyes, brown_hair, cleavage, closed_mouth, cowboy_shot, crossed_arms, embarrassed, large_breasts, looking_at_viewer, medium_breasts, multiple_girls, pink_bikini, short_hair, siblings, side-by-side, side-tie_bikini, simple_background, sisters, standing, swimsuit, white_background