Jennifer Aniston and her ex-husband Justin Theroux - much to their fans' excitement. The couple had a cute exchange over Instagram on Thanksgiving and revved up hopes of a reunion.MORE: Jennifer Aniston showcases her washboard abs in sports bra in new adJennifer, 51, shared some adorable photos of herself with her holiday date, who came in the form of her new puppy, Lord Chesterfield. WATCH: Jennifer Aniston has insanely flirty reunion with Brad Pitt She captioned the post with a simple message: