JUY-643 Reiko Sawamura is invited by her mother-in-law who wants her son-in-law's big dick all the time.

Reiko hasn't been able to do anything at night since her husband went away on his own. - When she couldn't get over her horny state, she happened to witness the huge cock of her son-in-law, Tetsuya, who was living with her. - When Reiko saw Tetsuya masturbating alone without sex, she said to herself, ``As a mother, I will take responsibility and make things easier,'' and she pushed him down while her daughter was asleep. - From that day on, her sexual desire, which had been suppressed to the limit, exploded, and she played with his big cock over and over again...