I had heard rumors, but she was even cuter in person, leaving me stunned. That day, when my friend's older sister showed up, I felt my heart race, realizing I had started becoming aware of my own attraction to erotic sites. Checking the adult sites I secretly browsed every night, I discovered I was actually drawn to masochism. When my friend's sister found out, she must have misunderstood—thinking I was a perverted M man—and to keep me away from her younger brother, she began tormenting me. She mocked, insulted, and screamed at me, toying with my cock like a plaything, forcing me to ejaculate over and over. In the end, I even lost my precious virginity to her.