Word on the street is that new couple of the moment, Serena (Blake Lively) and Dan (Penn Badgley) are hosting Thanksgiving together. But this party is about to get crowded really fast. Why? Well, Blair (Leighton Meester) and Chuck (Ed Westwick) are joining in the "fun." And is that Blair in a themed sexy outfit we see? We thought there was a loose leg on that Chair, but things seem to be on the mend...