We already knew Duff's new character Olivia has her sights set on Dan Humphrey this fall on Gossip Girl, but now there's big, fat proof of at least one big, fat kiss between the movie starlet and the one young man at NYU who doesn't know who she is.

Could this kiss be the sign of a flourishing romance, or is this relationship doomed from the start? Hard to say, but the news of an ex-boyfriend's return and Hilary's own take on her character point to some bumps in the road for these new NYU co-eds...