Tomoka Minami used to be a photo model, and she didn't know that her son-in-law was a fan of hers.
One day, Tomoka Minami accidentally discovered that her son-in-law was watching a sex movie with an actress who looked a lot like her, surrounded by photos of her when she was a model. He was using her photos to masturbate! The son-in-law's huge dick made Tomoka Minami unable to take her eyes off him. It turned out that the dick was so big that it hurt Tomoka Minami's daughter. It had been a long time since her son-in-law had sex, so he had to "solve" it alone like that....
