My husband is on a business trip... A busty tanned mother secretly seduces her son's friend

One day, Hiroshi arrives at his friend's house, but unfortunately he is absent. My mother, Rena, invited me to dinner just because I had the chance... Rena, whose husband is on a business trip and secretly feels lonely, gets drunk and steals Hiro's first kiss. When Hiroshi decides to stay overnight, he can't sleep after his first experience and leaves the room, and by chance he witnesses Rena masturbating due to a crush on her. Rena, who gets drunk and mistakes her for her husband, forcefully holds her, takes her lips away again, and pushes her down as she desires...