karubi (karubi465558), oyama mahiro, oyama mihari, onii-chan wa oshimai!, commentary request, highres, 2girls, ahoge, bare arms, bare legs, bare shoulders, black hair, black skirt, black socks, bolo tie, brown eyes, controller, dress, game controller, hair ornament, hair ribbon, hairclip, hand on another's head, holding, holding controller, holding game controller, kneehighs, lab coat, light blush, long hair, lying on lap, multicolored hair, multiple girls, pink hair, purple hair, red ribbon, red shirt, ribbon, shirt, siblings, simple background, sisters, sitting, skirt, sleeveless, sleeveless dress, smile, socks, tablet pc, twintails, two-tone hair, white background, white dress, white socks