I ended up staying at my wife's parents' house for a week. It had been a while since I last saw my sister-in-law Rio, and she was always unguarded at home, leaving me with nowhere to look. Our relationship changed abruptly from the day Rio went drinking with friends. I decided to let Rio rest in a business hotel after she got drunk, but seeing her alluring figure made me unable to control my reason… From that point on, Rio and I hid our relationship from my wife, indulging in intense intercourse like lovers in love…
