How Courteney Cox Reacted to David Arquette's Baby News - ABC News

Courteney Cox makes an appearance on "The Ellen DeGeneres Show," Jan. 7, 2014.

Michael Rozman/ Warner Bros.

Talk about supportive exes!

Courteney Cox sat down with Ellen DeGeneres ^[1] recently to discuss life with her 9-year-old daughter Coco, and during the chat, she said that learning that her ex-husband, David Arquette, was expecting a baby with his new girlfriend Christina McLarty, was a bit of a shock.

"At first I was nervous," she admitted. "I was like, 'Ooh, this is heavy.' ... [Now] it's great."

Their daughter Coco felt the same way, she added.

"It's a big deal!" Cox, 49, explained. "[But now] she's really excited."

David Arquette Calls Courteney Cox 'One of My Closest, Greatest Friends'^[2]

Cox and Arquette, 42, were married for more than a decade before they split in 2010. He was first linked with McLarty in 2012, and "Cougartown" actress Cox is dating Ed Sheeran's roommate, Johnny McDaid.^[3]

However, it's clear she's still quite close with Arquette, and even revealed his baby's gender: "They're going to have a little boy," she said. "I hope I'm allowed to say that!"

"We actually all had dinner the other night -- the whole family," she added. "It's a very unique relationship. All of us, literally: me and Christina and David and Coco. It's great."

Courteney Cox, David Arquette Celebrate Separation ^[4]

And while the whole family may be coming together in anticipation of the new baby, Cox said that Coco is still very much a mama's girl.

"She's a little bit of a tick! I mean, she is on me," she said. "I went on this mother/daughter day with her and I took her to a spa... [and then] I took her to Maestro's for dinner, just the two of us, a very romantic dinner. We just sat there and held hands and talked."