This role-play is performed by adults. ``I don't want to see my mother's lonely face anymore.'' Mayu is briefly moved by the kindness of her grown son, but she is forced to push him down. ``I absolutely don't want my mother to be fucked by another man,'' she blurted out in front of her son, worried about the lack of sex. That would produce such a result... Her body trembles with fear of the taboo of incest and anticipation of the long-awaited pleasure. It's just for now...so Mayu told herself and let go of her rationality.