When I met her best friend for the first time, she was beautiful and had big breasts. We became closer through a novel, and I started to become fascinated with her best friend. Even though I felt an urge to do something I shouldn't, I ended up having sex with her and cumming inside her without her knowing... As the days went by, I gradually became addicted to her boyfriend's cock, and eventually my best friend begged me to cum inside her!