During an exclusive interview with E! News, Brian shared where he and his ex-wife stand on allocating time with their three kids, Noah Shannon Green, 10, Bodhi Ransom Green, 8, and Journey River Green, 6, during the holiday season.
"We co-parent really well together," the Beverly Hills 90210 alum, 49, shared during the Paw Works Animal Rescue "Ties and Tails" Gala Oct. 29. "And we don't fight over time with the kids. We try and alternate holidays between Christmas Day, Christmas Eve."
He added, "But we're open to things changing. I'm very aware of—and so is she—that our schedules are insane. So when we do get time, cherish it. It's an amazing thing and we support the other parent having time."
And where Brian feels that people make mistakes when it comes to co-parenting?
"People make the mistake of going into separation, worrying about not affecting the kids, Brian—who also shares Kassius Marcil-Green, 20, with actress Vanessa Marcil—explained. "But I don't think that's possible. I don't think it's possible to separate and have it not affect the kids."
And it seems the Jennifer's Body star, 36, and Brian are doing just that—so much so that Megan may have just caught baby fever, from her ex and Sharna Burgess who welcomed their 3-month-old son Zane in June.
In fact, she expressed as much on a recent comment on fiancé Machine Gun Kelly's Instagram post Oct. 26, writing, "Never has anyone with better bone structure walked this earth. Exquisitely, devastatingly handsome. And 6 foot 5? Kill me or get me pregnant. Those are the only options."
That his ex may be expanding her family was news to Brian, but he agreed that his newest addition could have that effect on people. "He'll give anyone baby fever. That's for sure," the Anger Management actor gushed. "And she thought he was the cutest thing. I love that. And she's always asking the kids and about him, like how he's doing?"
And when asked how the kids would feel about another sibling from their mom, Brian told E! News's Amanda Champagne, that it would be a yes from them.
"I think that'd be amazing," he said. "They are absolutely obsessed with Zane and so it'd be the same for them with her. And the reality is that it's I think it's difficult for them leaving and going over to her house because they miss him so much so to be able to go over to her house and have the same experience. There's something cool there."
So, it may be MGK's only option after all.