I am a bad mother. Even though he is my son-in-law, I can't help but notice the bulge in his crotch... I can't sleep because I get excited thinking about what it would be like to have something so big and hard in front of me... My daughter's husband has been living with us for a year. The Kyono family's two-family home is always full of smiles. Today, they were having a lovely time after dinner. Mirei massages her son-in-law to comfort him. While massaging his shoulders, she looks down and notices his crotch bulge. She had never paid any attention to it before, but it suddenly bothered her. After that, Mirei happened to witness her son-in-law masturbating and was speechless. His penis was big and big, and it was spurting out a large amount of milky liquid. One night, Mirei was making love with her husband for the first time in a long time. However, her husband lost his erection halfway through and they couldn't finish. Mirei's frustration grows day by day, and she can't stop thinking about her son-in-law's crotch. One afternoon. Her daughter and husband are out, and at home, Mirei and her son-in-law are taking a nap. When he turns over in his sleep, Mirei's eye is drawn to his bulge. Suddenly, her heart starts pounding uncontrollably, and she slowly approaches him, gently reaching for his crotch...