I had sex with my step sister's large buttocks while she was aroused by me wearing her undergarments

I had been craving a taste of my step sister for a while, and finally, I managed to get my hands on her panties. They were soft and smelled like her, driving me wild with desire. When she walked in on me wearing them, her eyes widened in surprise, but then she let me take her from behind. Her big, round ass was begging for it, and I was more than happy to oblige. I pushed my thick, black cock deep inside her, feeling her tightness around me as I thrust. She moaned with pleasure, her body writhing beneath mine as I continued to pound her. My large, black cock was too much for her to handle, but she kept begging for more. I gave her exactly what she wanted, filling her with my hot, sticky cum. This was the kind of sex that left us both completely spent and satisfied, our bodies entwined in a passionate embrace.