Rule 34 Dev - 2girls blush covering_with_blanket closed_eyes hair_ornament hair_ribbon kotonoha_akane kotonoha_aoi long_hair lying multiple_girls on_stomach open_mouth petenshi_(dr._vermilion) pink_hair ribbon siblings sisters sleeping slipping smile surprised thighhighs translation_request twins vocaloid voiceroid waking_up|7002247707