nao (flake), kagamine len, kagamine rin, vocaloid, 1boy, 1girl, aqua eyes, arms around another's back, ass, belt, blonde hair, blush, brother and sister, closed eyes, detached sleeves, hair ornament, hair ribbon, hairclip, hand on another's head, heart, hetero, hug, kiss, kissing forehead, leaning on person, messy hair, one eye closed, ponytail, ribbon, sailor collar, short hair, short ponytail, shorts, siblings, sitting, twins, wink