Jennifer AnistonJohn Mayer isn't the only one who can make Jen happy.

Ms Aniston was full of seasonal cheer on Christmas Eve as she dined out with someone other than her beau John.

With Mr Mayer back on the East Coast, it was left to old pal Courteney Cox to keep Jen entertained.

So they popped out for what has become their annual Christmas Eve supper to Mastro's Steakhouse in Beverly Hills.

A smiley Jen, dressed all in black, joined Courteney, her hubby David and their daughter Coco in the restaurant's private dining room.

"Jen and Courteney chatted non-stop. Jen was also very sweet to Coco and the two giggled together," a source told People.

It seems like Jen was in a chirpy mood - as was Courteney and David, despite having to endure yet more rumours about the state of their marriage.Jennifer Aniston and Courteney Cox

The source added: "Courteney and David were also in a great mood and they acted very sweet to each other.

"Coco was walking around the restaurant without any shoes and when Courteney asked her where her shoes were, Coco said they were too tight and that she had to take them off.

"Both Jen and Courteney were smiling at her. Jen and Coco seem to have a very special bond and it was cute to watch Jen dote on Coco."

Is Jen getting herself all broody with her cute little god-daughter? John will be delighted...