Rule 34 Dev - 00s 2000s 2008 4girls bare_shoulders bath bathhouse blush breasts brown_eyes brown_hair cleavage collarbone completely_nude completely_nude_female english_text fanservice female finger_to_mouth green_eyes haimura_kiyotaka hi_res index indoors itsuwa long_hair matching_hair/eyes misaka_mikoto multiple_girls naked_towel navel novel_illustration nude nude_female o_o official_art open_towel partially_submerged pool purple_hair short_hair shushing silver_hair small_breasts steam teenage_girl teenager to_aru_kagaku_no_railgun to_aru_majutsu_no_index towel towel_on_head translated water wet yellow_theme young|8905984648