After a rocky end to his relationship with the country darling, which Swift talked and sang about, Joe Jonas 19, quietly began seeing 22-year-old Belle, who starred in the Jonas Brothers video “Lovebug.”

“They met on the set of his music video,” says the source. “All the guys always had thought she was really pretty and that’s why they asked her to be in it.”

So when did the atraction happen? “It was only after doing the video that they began to date.”

But don’t expect to see these two on red carpets together anytime soon. “They are not public about it but they’ve just been hanging out with their friends and Joe’s brothers,” explains the source. “They are very private about it.”

“She’s a really good girl and it seems they share a lot of the same characteristics and morals of Joe and his brothers” .

Reps for Jonas and Belle said: “no comment”.