Emi used to live with her son and wife and grandchildren, but now she lives alone. - Occasionally, her son or grandson comes home, but she usually lives alone and lonely. - Speaking of fun, I enjoy watching TV and masturbating as a daily routine. - Part of the fun is thinking about what to masturbate with today. - One day, while I was masturbating using a vibrator, my son Hiroshi came home. - Hiroshi witnesses his mother masturbating and becomes erect. - Just like that, the two of them...