There's Chemistry Between Blake and Penn

Penn Badgley has opened up about his romance with Gossip Girl co-star Blake Lively. He said that obviously, there's chemistry between them and that Lively is a great girl (of course she is!)

He added, "we have to draw a line, at some point, with our personal lives, because otherwise, ya know, when do people stop?"

A picture of Penn smooching Blake while vacationing in Mexico's Mayan Riviera has been widely spread on the internet, but Penn insists that he's "not a fan" of on-set romances.

"I think they cause a lot of drama. God, I'm being so cryptic," Penn added.

He said he is still getting used to the fact that he's become a heartthrob.

"I would say I once got mauled by 40 or 50 girls on the street, all school girls, all from one of these schools that the show is about and all is plaid skirts, white shirts, and just screaming, eyes glazed over," he said, recalling his scariest fan encounter.

According to Penn, it's different shooting the CW hit the season finale aired Monday in New York City rather than Los Angeles because people have a certain respect for the show because it's a show in the city about the city.

"In New York I would say it's pretty tame, out here it gets a little crazy," he said.

As crazy as your romance...?