2girls, bikini, black_bikini, black_hair, bracelet, breasts, brown_hair, brown_nails, cleavage, contrapposto, fingernails, frilled_bikini, frills, front-tie_bikini_top, front-tie_top, green_eyes, hoshi_san_3, jewelry, large_breasts, long_fingernails, long_hair, looking_at_viewer, medium_breasts, mole, mole_on_breast, mole_under_eye, multiple_girls, nail_polish, original, pale_skin, parted_lips, siblings, side-tie_bikini_bottom, sisters, standing, swimsuit, yamifuka-san's_sister_(hoshi_san_3), yamifuka-san_(hoshi_san_3)