Paris Hilton has been ranked the best celebrity lover - by a lothario adult website boss who once dated her. JOE FRANCIS claims to have slept with a host of eligible female celebrities including Hilton, Lindsay Lohan, Rod Stewart's daughter KIMBERLY and Tara Reid. In an interview with US shock jock Howard Stern, Francis insisted Hilton was the best, Stewart was "awesome" but Reid was "worst of all". Hilton and Francis co-star in an x-rated video recently leaked on the internet.