Stepbrother's Dark Obsession: Turning Me into His Personal Sex Doll

I couldn't believe what I was about to do. My stepbrother had always had a thing for me, but this was different. He wanted me to be his sex doll, a toy to be used and discarded at his whim. I hesitated at first, but the thrill of the forbidden was too great to resist. I let him transform me, dressing me up in a skimpy outfit and programming me to obey his every command. As he approached me, I could feel my heart racing with anticipation. He took me roughly, using me like a doll, and I couldn't help but respond. The more he used me, the more I lost control, until I was nothing more than a vessel for his lust. It was wrong, but it felt so right. I was his sex doll, and I would do anything to please him.