Tis the season to put those coparenting skills to the test! Months after a source told Us that Gwen Stefani and Gavin Rossdale had met for an “extremely productive” mediation session to “hash out their differences regarding parenting,” the exes, who called it quits in 2015, have agreed on a plan for both of them to spend Christmas with their sons Kingston, 12, Zuma, 10, and Apollo, 4.
The former Voice judge, 49, and the Bush frontman, 53, will both be in LA Dec. 24–25. “They’ve agreed to essentially split both days so that both of them are with the boys,” an insider tells Us. “It’s a significant step.” And Gwen’s time with the kids will likely include boyfriend Blake Shelton. For the past two years, Blake has joined Gwen…