Last week, the fabulous Upper East Siders of Gossip Girl went their own bi-coastal ways. While Blair began preparing for her wedding to Prince Louis, Serena made a name for herself in Hollywood, Dan tried to hide the juicy contents of his book, Chuck turned into a total daredevil, and Nate shacked up with a va-va-vroom cougar.

This week, on an all-new Gossip Girl, the fun continues with more beautiful dresses and one big feast. And this is going to be one event you don’t want to miss because, tonight, Blair meets the future thorn in her side her future sister-in-law, and reveals what she intends to do about…(voice drops to a whisper)…le bebe.

Watch a sneak peek of Gossip Girl episode 5.02 with executive producers Joshua Safran and Sara Goodman:

How long will Cousin Charlie (or should we say, Ivy) continue to deceive Serena & Co.? More importantly, will Blair reveal news of her baby bump to any of her minions? Leave your predictions below and watch an all-new Gossip Girl at 8/7c. (Check back tonight for an exclusive “Watch and Win” fashion giveaway)!