My stepdaughter and I engage in a threesome with my wife while she remains silent as my sex slave

I was at my place, chilling with my girlfriend and her stepdaughter. I've always had a thing for her, and when we were alone, we decided to spice things up. We invited her stepdad over, and as he walked in, I noticed he had a massive cock. I knew he was the kind of guy who would make our threesome even more exciting.We started off with the girl and me in the bedroom, getting down and dirty. Soon after, her stepdad joined us. He took control, dominating both of us. His huge cock was thrusting into her sweet pussy, while I was watching, unable to resist the urge to join in.The sight of his big cock pounding her juicy ass from behind was too much for me. I had to get a piece of the action. As we switched positions, her stepdad remained silent, fulfilling his role as her sex slave. It was clear that he was enjoying every moment of it. We continued our wild ride, indulging in our desires, leaving her stepdad satisfied with his obedient wife.