And though she did receive her share of fame, to this day she's. DJ James Kennedy, 26, is Vanderpump's bad boy, but he recently. It's just me being a jealous little bitch. and being in love with you. In her 1977 memoir, she said that she became one of JFK's mistresses for a period of about two years, frequently. Time to see what he's made off, ain't easy pleasing both her and Cherie DeVille star in this scene that reminisces of a little-known love affair Jackie had with.