Rule 34 Dev - 1boy 1girl aru_(blue_archive) blue_archive blush breasts closed_mouth collared_shirt girl_on_top greyscale halo hetero horns inotukuhito long_hair long_sleeves lying monochrome neck_ribbon on_back pants pencil_skirt ribbon sensei_(blue_archive) shirt simple_background skirt straddling sweat translation_request wavy_mouth|21383152596