18-year-old with a big ass and a butt plug rides my dick in cowgirl position

I was hanging out with my 18-year-old girlfriend, who has a big, juicy ass. She had a butt plug in her ass, and we decided to take it out and have some fun. I started fingering her ass, and she moaned in pleasure. Then, I had her sit on my lap, and she slowly slid my dick into her tight pussy. We started fucking in the cowgirl position, and she was riding me hard. Her ass was bouncing up and down, and her tits were flying everywhere. I could feel her wetness dripping down my thighs as she rode me harder and harder. Eventually, I couldn't hold back any longer and came inside her. We were both panting and sweaty, and her clothes were ripped from our wild fucking. It was a hot and steamy session that we both enjoyed.