GVH-226 Nenne Ui teaches cake decorating and ends up in sex with a boy who pranks her

Nenne Ui appears as a teacher on a cooking channel, and while she makes a decorated cake, a boy named Shota plays pranks on her, putting cream on her breasts and his own face, then has sex with her in the bathroom. After that, more mischief follows in the kitchen, and later she masturbates alone at night before calling Shota back for more.