Harry Styles of mega boy-band One Direction is "on to the next one" and rumored to be dating someone new. Styles and fashion model Cara Delevingne were seen out at the popular musical "Book of Mormon" last week. What was at first thought of a friendly night out is now sparking rumors of a real relationship.

A source close to Styles and his new girlfriend Delevingne are already in a relationship and ready to shout it out from a mountaintop for the entire world to hear. Well, maybe not that but the source did say he wants to make the relationship public.

"They have great chemistry," the source disclosed. "Sure, they've always agreed to keep things super-casual and private because of their crazy worlds, but Harry genuinely likes Cara a lot - he has done ever since they met three years ago."

The source also added that Styles and Delevingne have seen each other romantically when they're both in town, but because of such busy scheduled they've never had the time or proximity to start a close-distance relationship.

"They've actually had an on/off thing going all this time when they're in the same city, but they've never had the chance to give a real relationship a shot. I can't imagine she wants to join the list of women who have been Harry'd."

Though the source may be right about the Harry Styles girlfriend rumors, Cara Delevingne doesn't seem to be heading into a relationship with the One Direction singer or any other guy for that matter.

In a recent interview Delevingne said she's "done with boys."

"They're so annoying, all they care about is their willies. I want to behave more like a boy," Cara confessed. "I want to be the strong one."

Let the Harry Styles girlfriend rumors ensue.