2girls :d back-to-back bangs bare_arms bare_shoulders blue_one-piece_swimsuit blush brown_hair closed_mouth collarbone commentary_request green_eyes grey_background hair_between_eyes hair_ribbon highres long_hair multiple_girls old_school_swimsuit one-piece_swimsuit original ponytail purple_eyes purple_hair ribbon school_swimsuit shibacha simple_background smile swimsuit yellow_ribbon