Rob and the strong Karyn Rob Diesel is at his favorite outdoor gym when he runs into a tough competitor while doing his morning workout. The feisty Karyn, who doesn't hesitate to tease Rob - both physically and sexually. Which one of them will take the lead during a hot fuck in bed? You'll have to watch to find out. . Rob and the strong Karyn - Duration: 27 min - Starring:  Karyn Bayres  Rob Diesel .