Itsuki married into the Ayuhara family with her stepson Masaru. Her husband's son, college student Tetsuo, did not welcome her, and even after half a year, they still hadn't gotten used to each other. Moreover, before marriage, when she was in an affair with her husband, he would demand her every night intensely, but now they are sexless. Just then, Tetsuo found out about the affair she had been having since before her husband's first wife passed away, and Itsuki was cornered. Desperate not to let Masaru find out, she endured Tetsuo's molestation, enduring a milk enema at the breakfast table, and at night, when the family had gone to sleep, she rode his huge cock, shaking her experienced ass. And Masaru, who is awakening to his sexuality...
