Because her husband had to go on a long business trip, Ryo had to use exercise to relieve his sexual desire. One day, Kousuke, Ryo's son's best friend, comes to play. At first glance, she was attracted by Kousuke's muscular, muscular body. When Kousuke was naked in the sauna, Ryo secretly peeked at his giant cock. Because he had been deprived of sex for a long time, Ryo couldn't control himself and rushed inside, seducing him. Being at her most prolific age, of course Kousuke couldn't resist Ryo and gave her what she wanted. But Ryo didn't expect that Kousuke would be so strong. He fucked her over and over again, fucked her from night to morning, and ejaculated in her uterus countless times. The next morning, Ryo couldn't open her eyes, and her pussy was damp and sore. Even so, Kousuke still comes to her and wants to fuck her more. Knowing that he couldn't bear it, Ryo immediately ended up with him. Kousuke also understood and since then has not come to look for Ryo anymore. Two months later, Ryo hears that Kousuke has a girlfriend, and his girlfriend is even a model. In the depths of Ryo's heart, she remembered the feeling of happiness that Kousuke had brought her. And suddenly one day Kousuke came to Ryo, and it turned out that his girlfriend didn't want him to fuck her, she only cared about herself. Hearing that, Ryo felt an indescribable joy. She took the initiative to invite him, let him fuck her comfortably, as many rounds as she wanted, because for the past two months, she had been training her lower body to be able to meet Kousuke's sexual needs...