Jennifer Aniston Laying Out at her Malibu Home

Courteney Cox has blasted US reports that her best friend Jennifer Aniston is making wedding plans with Vince Vaughn, insisting "she's not engaged." American publication Us Weekly printed the story about the couple's mid-air engagement last week, but Aniston's former co-star has told rival Life & Style the reports are untrue. Asked at a charity event on Monday if Aniston was planning to become Mrs. Vaughn, Scream star Cox said, "No, she's not."