Ben Affleck and Jennifer Lopez
Ben Affleck and Jennifer Lopez called off their engagement in 2004 Reuters

A celebrity gossip website has come up with claims that Ben Affleck and Jennifer Lopez are dating again. The two reportedly reconnected while working on some projects together.

According to a report in Radar Online, the former couple showed great chemistry during a script meeting. A source said: "It was like they'd never split up."

"She was actually blushing when he kissed her in greeting. There's so much chemistry between them, all the other folks ... could have been invisible!" the insider added.

The source continued: "Jen was always paranoid about JLo and it looks like she was right. Ben and Jen have been meeting in secret, and tongues are wagging that they're serious about making it work this time!"

Affleck and Lopez dated for two years, but called off their engagement in 2004. The Oscar winner had previously revealed he is in good terms with Lopez despite the split. He told The Hollywood Reporter: "We do have the kind of relationship where there'll be an email saying, 'Oh, your movie looks great.'"

"I remember when she got American Idol. I said, 'This was really smart. Good luck.' I touch base. I respect her. I like her. She's put up with some stuff that was unfair in her life, and I'm really pleased to see her successful," he added.