Step sister's sexual skills on display after a year of college education

After a year of college, my step sister decided to show off her sexual skills. She had been practicing for a while and was ready to put on a show. She started by oiling up her big tits and ass, making them glisten in the light. Then, she got on top of me, riding me hard and deep. The sight of her big ass bouncing up and down was enough to make me lose control. I couldn't hold back any longer and I came all over her. But she wasn't done yet. She continued to ride me, her moans of pleasure filling the room. It was a sight to behold as she showed off her amateur skills, leaving me completely satisfied. This was one of the hottest moments of my life and I knew it would be one of hers too.