MIAA-609 When I was being eyed by my boyfriend's sister.

While my girlfriend was preparing for our date, I was waiting in the living room and her sister came home in the morning. I was shocked by her extremely sexy outfit, and not only that, she approached me provocatively. I was interested in her, but I couldn't stand being seduced by such a dirty sister. I was addicted to the thrill and immorality as I was truly getting increasingly provoked.