GVG-162 Busty wife Mio Kayama cuckolded by her virgin son

It's been a year since Mio married as a second wife, and she lives with her husband and their son, Satoshi. Concerned about Satoshi, who is nervous about his father's strict educational policy, Mio tries to be understanding and gives him advice, but she ends up giving her body to Satoshi. Unknowingly, her father sets up a camera to monitor Satoshi's studies, but the footage he sees awakens emotions he hasn't yet discovered...