Is there something going on between Cameron Diaz and Sean Diddy Combs? A new report claims theyve been occasional hookup buddies since connecting on Oscars weekend in 2008. Since then, when shes single, shell booty-call him, a source tells Us magazine. As recently as Oct. 24, the hip-hop mogul and the actress were inseparable in a booth at a New York restaurant, an eyewitness recalls, adding that they had their hands all over each other. And as even-more-recently as Nov. 11, they were making out, acting romantic over lunch at a Beverly Hills eatery, according to another source. But reps for both stars say theyre just pals, and are meeting to discuss a potential comedy movie. So evidently that movie has a love scene, and they figured theyd rehearse it right off the bat? Demi Done with Ashton Its all over! On Thursday, 49-year-old Demi Moore issued a statement to The Associated Press (how A-list is that?!) saying she is ending her marriage to Ashton Kutcher, 33. The pair, who wed in S...