I had been married to my wife for three years, and we were living a smooth, stable life together. One day, my father-in-law suddenly passed away due to illness. Not wanting my mother-in-law to live alone, we decided to have her move in with us. Since both my wife and I worked full-time jobs, having my mother-in-law take care of the housework made our lives much easier. One day, I finished work early and returned home, only to discover my mother-in-law doing housework completely naked. I couldn't take my eyes off her. I realized she had been staying nude around the house whenever my wife was away. Although I had no complaints about my wife, I found myself irresistibly drawn to my mother-in-law. Unable to resist her allure any longer, I ended up having sex with her.