I instruct my young stepsister in using her phone as I pleasure her with my large penis

I was giving my stepsister some pointers on how to navigate her new smartphone when things took a bit of an unexpected turn. My big cock happened to be in the mix and before I knew it, she was on her knees, eager to give it a try. It wasn't like we were breaking any rules, after all, she's not my sister by blood. But the thrill of it all, the taboo, made it all the more exciting. She started off with a few tentative strokes, but soon found herself lost in the moment, her tight hole being filled by my large shaft. The sight of her, on her knees, her ass bouncing with each thrust, was enough to push me over the edge. I filled her with my warm release, marking the end of our steamy encounter.