JUQ-272 I fucked my wife's sister, who was glaring at me with contempt for cheating, until she said 'No more' and kept coming.

Nao is asked by her pregnant sister to take care of her brother-in-law, Yoshio, while she is hospitalized for tests. Then, by chance, I witness Yoshio walking with an unknown woman... She is furious at Yoshio who tries to be unfaithful to her sister during her difficult time. ``Can any woman do it?'' Yoshio gets so excited that Nao insults him, and he shuts her up. Nao is humiliated while feeling so frustrated that he wants to kill her, and continues to be made to cum over and over again.