Yuri married her husband and lived with her father-in-law. Although their sex life was bland, Yuri was satisfied at first. However, as months turned into a year, the frequency and number of times they had intercourse decreased. After all, Yuri's libido was intense while her husband's stamina reached its limit. Reluctantly, Yuri resorted to masturbating during her alone time to make do. Her father-in-law observed this marital life and kept a diary for his amusement. One day, Yuri's attire changed. It became more revealing, almost seeming like she wasn't wearing a bra or panties. Initially, he thought it was part of their acts with his son, but looking back at the diary, he noticed that her acts with his son had decreased and disappeared around the time she started dressing like that. One day, when her husband went to work and her father-in-law left for an errand, Yuri was enjoying her alone masturbation time. However, her father-in-law returned early after skipping his errand. He found Yuri engrossed in masturbation, looking at her with a shocked expression, but he became excited seeing her pathetically gasping. He then took her by force. Her father-in-law's experienced caresses were incredible, especially his relentless cunnilingus that made her climax multiple times. His member was bigger and harder than her husband's, and Yuri reached orgasm the moment she was penetrated. A few days later, with the family out, Yuri alone fumbled and took her father-in-law's underwear from the laundry basket, gently smelling it. As she reminisced about their act, she slid her fingers down to her crotch, finding her own underwear disgustingly wet...
