I've always been drawn to my stepsister's tight, round ass. When I finally got the chance to seduce her, I didn't hesitate. I tricked her into thinking we were going to have a romantic encounter, but my intentions were much more carnal. As soon as she was alone with me, I wasted no time in getting down to business. I teased her pussy, tantalizing her with my fingers and tongue, before finally plunging my hard cock into her tight asshole. She moaned in surprise, but I could tell she was enjoying it. I pounded her ass relentlessly, my lust for her insatiable. The sight of her ass bouncing up and down on my cock was enough to drive me over the edge, and I came hard, filling her with my hot load. It was the best sex I've ever had, and I know it won't be the last time I'll be fucking my stepsister.