2girls, alternate_costume, beach, bikini, black_bikini, breasts, closed_eyes, girl_on_top, hair_ribbon, looking_at_another, lying, lying_on_person, medium_breasts, midriff, multiple_girls, navel, ocean, on_back, one_side_up, orange_hair, outdoors, purple_eyes, red_hair, ribbon, swimsuit, yellow_bikini, yuri