MISM-053 The son discovered that his mother-in-law was a nude model and the outcome.

Her daughter and son-in-law wanted to save money to buy a house, so they came to live at their mother-in-law's house, Mihara used to be a model, and she didn't know that her son-in-law was a fan of hers.

One day, she accidentally discovered that her son-in-law was watching a movie with an actor who looked very similar to her, surrounded by photos from when she was a model. He used her photo to masturbate! Her son-in-law's big cock made her unable to take her eyes off.

It turned out that because the cock was too big, it hurt Mihara's daughter, and it had been a long time since her son-in-law had had sex, so he had to "deal with" it alone. Feeling sorry for her son-in-law, Reiko decided to offer to "take care" of this big cock on his daughter's behalf.

Before the invitation, plus the fact that he had to endure for so long that he couldn't resist anymore. Since then, the two have continuously secretly fucked each other every time they have the opportunity, secretly maintaining this wrong relationship...