Photos of Hilary Duff and Penn Badgley Kissing on the Set of Gossip Girl

Hilary and Penn Get Up Close and Personal

Things were heating up on the NYC set of Gossip Girl yesterday as Penn Badgley and Hilary Duff filmed an intimate kissing scene. Dan seems like he's going to have a busy love life to kick off college life, but he's not the only one whose lip locks make headlines. Hilary is a newcomer to the set and she's already sporting the fabulous fashion we love to see on the show. Also on set, Blake Lively and Chace Crawford shared a laugh running their lines together only a few short weeks before the start of their first semester.

To see more of the cast on set, just read more.