Joe Francis and Brody Jenner, two legendary lotharios on the Hollywood party circuit, engaged in a knock-down drag-out fight Friday morning after the 'Girls Gone Wild' founder reportedly punched and kicked Jenner's girlfriend during a dispute over his macking skills.

Joe FrancisJenner, famous for his time on MTV's 'The Hills,' told TMZ he and his girlfriend Jayde Nicole were celebrating his birthday at the Guys and Dolls nightclub in West Hollywood when they spotted Francis "unrelentingly" hitting on a close friend. Nicole confronted Francis, began arguing, and eventually tossed a drink on the soft porn magnate. More wild fight details after the jump.