JYMA-073 While my wife is away visiting her family during pregnancy, I have an affair with my beautiful busty sister-in-law. A forbidden relationship with my sister-in-law, Miki Yoshii, who is highly aroused and sensitive.

Five years after getting married, my wife became pregnant. She said she wanted to give birth at her parents’ home, so she went back to stay there. I thought a little time living alone might not be so bad, but then my wife’s older sister came to help with the housework and other things. When I saw my sister-in-law again after so long, she was beautiful and had a mature charm that was hard to ignore. I knew I shouldn’t, but I couldn’t help seeing her as a woman. Just the thought of being alone with her in the same house made me uneasy. Then one day, while I was secretly watching my sister-in-law in a private moment, our eyes met, and after that, we ended up crossing a forbidden line…