Returning to the countryside, the husband was propositioned by his sister-in-law for incestuous sex while his wife was fast asleep

In the summer, when my wife and I returned to my parents' house, I met Yui Shirasaka, who had visited me a long time ago, for the first time in a long time. She grew up cute and stole my family's eyes seducing me. Even though my beloved wife was nearby, I noticed that I was having a relationship with her. After that, her sex drive only increased, and we were sweating and getting naughty like crazy multiple times.