Jennifer Aniston and Justin Theroux went shopping at Barneys New York in Beverly Hills on Saturday. The couple browsed the perfume section and left the department store with a bag in hand. Jennifer and Justin already got started on their holiday celebrations after throwing a tree-trimming party at their LA home last weekend. It was a star-studded event with pals Demi Moore, Tobey Maguire and Ben Stiller in attendance. The engaged duo had an eventful year but it doesn't look like a baby is in their immediate future since Jen's rep shot down the latest pregnancy rumours last week.