vocaloid
kagamine len, kagamine rin
cyuutaro
1boy, 1girl, blonde hair, blue eyes, blush, brother and sister, censored, cum, cum in mouth, cum on tongue, cum string, ejaculation, facial, fellatio, hair ornament, hairclip, hand on another's head, hetero, incest, open mouth, oral, penis, short hair, siblings, tears, tongue, twincest, twins, wince
commentary request