1girl :d arm_holding ayuko_(ayuco) bad_id bad_pixiv_id brother_and_sister competition_swimsuit copyright_name free! heart hood hoodie jacket jammers long_hair matsuoka_gou matsuoka_rin one-piece_swimsuit open_clothes open_hoodie open_jacket open_mouth ponytail red_eyes red_hair sharp_teeth siblings smile speech_bubble spoken_copyright swimsuit teeth v