toaru majutsu no index
misaka imouto, misaka mikoto
2girls, bed sheet, black eyes, blush, bra, brown eyes, brown hair, dakimakura (medium), empty eyes, flat chest, head-mounted display, lingerie, multiple girls, open clothes, open shirt, panties, school uniform, shirt, short hair, shorts, siblings, sisters, socks, striped clothes, striped panties, tokiwadai school uniform, underwear, undressing
absurdres, highres, imageboard desourced, non-web source