Showing off their onscreen chemistry, Hilary Duff shared a passionate kiss with Penn Badgley on the set of "Gossip Girl" in New York City on Wednesday (August 26).

Changing into a cute floral dress, the former "Lizzie McGuire" star got all prettied up in her trailer before emerging to join the Dan Humphrey actor for their intimate smooch scene.


During her guest role stint, Miss Duff is playing a character named Olivia Burke - a movie star who enrolls at NYU to get a 'regular college experience.'

Previously talking with press about how great her experience on the hit CW show has been, Hilary said, "Everyone's been really, really gracious to me and sweet to me. I'm a huge fan of the show. They called me and said come on and do a few episodes. I jumped at the chance."

Enjoy the pictures of Hilary Duff on the "Gossip Girl" set with Penn Badgley (August 26).