My Friend's Mother -Final Chapter- Kaori Mihara

One day, Kaori learns that her only son, Toru, is being bullied, and she tries to protect him with her own body. Yoshino, seeing Kaori's devotion, forces her to strip naked in front of her son. Then he makes her masturbate against her will, takes photos with his phone, and repeats relentless caresses. Before long, Kaori begins to feel pleasure from those persistent touches...