HUGE news for Leighton Meester and Adam Brody

We're sure Leighton Meester and Adam Brody are currently over the moon as they have some very exciting news to announce.

The Gossip Girl star is expecting her first baby with the O.C. star.

The pair went out for lunch in LA over the weekend and that was definitely not a food baby that Leighton was showing off.

They couldn't stop grinning as they walked to the car afterwards and Leighton proudly showed off her growing baby bump in a tight grey t-shirt. 

Suspicion had previously been growing about Leighton being pregnant after she was spotted with a small bump, but this has confirmed it. 

The pair married in a secret ceremony in February 2014.

What an exciting chapter in their lives.

We bet Blake Lively is thrilled about a bestie for little James.