As I was showering, my step-sister joined in and we started to get a little too close. My brother's friend joined us and things took a wild turn. We were all naked and the atmosphere was intense. The guy started to touch my step-sister and then he kissed her. I didn't know what to do. I was torn between wanting to join in and feeling guilty for betraying my brother. The guy was persistent and soon we were all engaged in a steamy threesome. It was a crazy experience and I couldn't believe I was doing it. The guy was rough with my step-sister, but she seemed to enjoy it. I had to fight back the urge to tell him to stop, but I didn't want to ruin the moment. It was a wild ride and I couldn't wait to do it again.
