I still feel a little regretful for stepping into the world of BDSM, even if it was just a fleeting impulse. It all started when I met a 30-year-old senior coworker at work when I was 19. He was married, tall, had a sweet face, and was always joking around—a genuinely kind man. Before I knew it, we started going out to eat together, hanging out, and eventually became lovers. I knew it was wrong and felt terrible toward his wife, but I couldn't help being drawn to him. After about seven or eight times together, he invited me to his apartment, where I experienced BDSM for the first time. He gently begged me to indulge him, and that's when the session began. I was stripped completely naked, blindfolded, my hands tied behind my back with toy handcuffs, then made to kneel and slowly bend forward. With my ass thrust out, both my anus and pussy fully exposed, I protested, "It's embarrassing..." but whenever he said, "Please, just this once," I couldn't refuse and ended up obeying him completely. He licked my anus and pussy, fingered me roughly, and despite my shame, I climaxed several times from the intense pleasure. Then he entered me from behind, came, pulled out, and said, "I'm going again right away." When he thrust into me for the second round, his cock somehow felt much larger. He tightly gripped my ass cheeks, roughly kneaded my breasts, and kept thrusting in and out. My mind went completely blank—I couldn't think at all. I was penetrated, forced to give oral, and I even felt like my anal virginity was taken that day. In the end, overwhelmed by both pleasure and pain, I lost all sensation in my pussy. I passed out midway and only came to when dawn broke. That day marked my full awakening as a true female masochist. There's no turning back now... I can't forget that sensation, which is why I've come back here again today.