Courteney Cox‘s daughter is all grown up — andJennifer Anistoncan’t believe it!

In celebration of Thanksgiving on Thursday, Cox, 55, shared a new mother-daughterphotoon Instagram that featured 15-year-old Coco.

“So thankful!!!” Cox captioned her selfie, in which the pair poses for the camera with their faces touching.

Cox’sFriendscostar and longtime close pal Aniston, who is Coco’s godmother and has known the teen since birth, couldn’t believe how mature her best friend’s daughter looked in the sweet photo.

“Coco! You’re growing up way too fast. Or am I protecting? I love you deep. ❤️❤️❤️❤️,” wrote Aniston, 50.

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Last April, Cox, who shares Coco with ex-husbandDavid Arquette,sat down with her daughter for their first interview togetheras part of PEOPLE’sThe Beautiful Issue, in which the duo opened up about their dynamic.

“I want her to tell me everything, and she doesn’t want to tell me anything,” said Cox. “Exactly the opposite of the childhood I had.”

But just because Coco doesn’t share everything with her mom doesn’t mean the two aren’t extremely close. “We bicker, let’s be honest, but we love each other,” said the mother of one. “We laugh a lot, for sure.”

Coco added, “I would also describe it as, well, I am a 13-year-old girl, you are a mom, so I love you, but of course we’re gonna get in fights. But we’re very close. Very close. I love you a lot.”

Cox said keeping their daughter supported and balanced — and supporting each other as parents — is an important part of raising her.

“You don’t want to go in one house and have anything split,” Cox shared. “You want it to be harmonious in both places.”

Now that Coco has entered her teen years, Cox said one of the toughest parts has been getting her to come out of her room. “It’s mostly me telling Coco, ‘Please get out of your room and come and have dinner in the kitchen.’ There’s a lot of that, for sure,” she said.

“She’s 13, she likes to be in her room. Unfortunately, I got her this big bed and that was the biggest mistake I’ve made,” added the star, joking, “Youneed to make a bedreally uncomfortable so all they wanna do is just go there for those hours they have to. That’s the big thing, I think.”

David Arquette/Instagram

arquette

“At times,” Coco said, cutting her off. (Cox told PEOPLE Coco has been in 16 musicals and although she isn’t sure if she will go into acting down the road like both of her parents, the actress will support anything she wants to do.)

The formerCougar Townstar added, “And she’s got this instrument in her voice that I want to be backed up with either guitar, piano, I don’t care, but she has to have an activity. That I’m strict about.”

Coco said at the time that her mom had taught her “so much” in her 13 years of life, explaining, “If a stressful situation is going on, she helps me contain my stress and make me feel better. She’s taught me a lot abouthow to be a stronger personin general.”

While Cox is instilling in her daughter howto be strong and confidentthrough her teen years, she said Coco has also taughthera lot.

“She’s taught me patience,” Cox said. “Probably one of thebiggest things she’s taught meis to not take things personally, because really it’s not about us.”

source: people.com