Erin Electra, the busty stepmom with a perfect ass, is made to honor her bet with her stepson, Matthias. She starts with a tentative pussy ride, her big tits swaying, but soon, she's bouncing her round ass in cowgirl, her tight hole milking Matthias' cock. After a brief missionary interlude, Erin's ass gets the main event. Matthias plunges deep into her asshole, balls-deep, as Erin's juices coat his shaft. He fucks her ass hard, her big butt cheeks jiggling, until he can't hold back any longer. With a final thrust, he fills her ass with his hot cum, leaving Erin's asshole gaping and filled with his seed.