Cameron Diaz is having a high old time with one of Jennifer Aniston 's exes, the model Paul Sculfor . Diaz and Sculfor have been vacationing together in the Maldives where they've rented a huge bungalow, and Cameron was reportedly seen wearing a big fat ring on her finger. "They snorkeled, kayaked, and she ate like a horse," a source said. And Jen? She has a hot date tonight - with a ...