The first Christmas after a breakup — especially when there are small children involved — can be a tricky one. So Jennifer Garner and Ben Affleck's newly refreshed face are putting on a united front, celebrating the holiday together for the sake of family harmony, according to Us Weekly.

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“Christmas morning they will all be together to open presents,” a source says, adding that the clan will be celebrating at a cabin in Montana. “Ben and Jen want every Christmas to be a time of joy and family. They want their kids’ childhood memories to still be good."

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But don't take this show of cooperation as anything more than some good, solid co-parenting. "Ben and Jen are together only for the kids, not romantically," the source warns. 

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