Title: Belles de Jour
Air Date: September 13, 2010 at 12:00 AM PDT
Season 4 opens with a stylish bang as Serena and Blair gallivant around Paris. But it's not all macaroons and Louboutins: B is still nursing a Chuck-induced heart break while S is looking for a way to tell B she was accepted into Columbia. Meanwhile, back in New York, Dan has been playing "baby daddy" to Georgina's spawn and Nate finds himself having fun with Chuck's little black book.
Read our full recap here.