To prepare for my upcoming entrance exams, I ended up staying at my brother's place. The first time I met my new sister-in-law, Aki, she was incredibly beautiful. As I eagerly anticipated our cohabitation, suddenly the seduction began... I ended up having unprotected sex with her, releasing inside. After that, even while studying or taking a bath, my sister-in-law would frequently tempt me, and we had unprotected sex many times…
