Gwyneth Paltrow still hasn't met her ex's on-again girlfriend Jennifer Lawrence

It looks like the recent reunion between Chris Martin and Jennifer Lawrence might not yet be as serious as we thought.

That is, if you can judge a guy's level of commitment by whether he arranges for his current girlfriend to meet his ex-wife and their two kids.

According to Perez Hilton, Chris still hasn't introduced Jennifer to Gwyneth Paltrow, which presumably means their kids, Apple, 10, and Moses, 8, haven't met Jennifer either.

"Chris hasn't wanted them to meet yet," a source said. "Gwyneth and Chris are co-parenting without Jen involved for now."

Maybe he's waiting to see if his second time with Jen will be the charm. The couple reportedly split in October after dating for several months but reconnected over the holidays.

Chris, 37, and Gwyneth, 42, separated in March of last year after a decade of marriage, but they seem to still be pretty close. It must be hard keeping Gwyneth and Jen, 24, out of each other's orbit.

For her part, Gwyneth has already formed her own opinion of Jen, which she shared with US radio host Howard Stern last week.

"Who says I don't approve of Jennifer Lawrence? I respect [Martin] as the father of my children," she said. "It's his decision. He wouldn't be with someone who isn't great."