Reese Witherspoon's 3 Kids Look All Grown Up in Sweet Christmas Snaps with Mom: 'Happy Holidays!'

Reese Witherspoon is celebrating Christmas surrounded by her children.

On Wednesday, Dec. 25, the actress, 48, shared a series of snaps on Instagram from her Christmas celebration alongside all three children — daughter Ava, 25, and son Deacon, 21, whom she shares with ex-husband Ryan Phillippe, and son Tennessee, 12, whom she shares with her ex Jim Toth.

To start her family-filled post, Witherspoon shared a photo of herself and her kids posing in front of a large Christmas tree. Next, Ava, Deacon and Tennessee can be seen sweetly smiling with their arms around one another at a restaurant table — looking all dressed up and extra grown up.

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"Wishing all of you a very Merry Christmas and Happy Holidays! 🎄💫❤️," the proud mom wrote in her caption.

The post continues to show Witherspoon and her youngest sitting on the swirling steps in their home and gazing at each other, while surrounded by two of their pet dogs.

The mom of three reshared the post on her Instagram Stories, writing, "Merry Christmas & Happy Holidays, from my family to yours!"

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In November, Witherspoon sat down with Carson Daly's son Jackson, 15, to chat about her new children's book Busy Betty & The Perfect Christmas Present. During their discussion, she revealed how her three kids helped influence the illustrations for Betty's "epic meltdown" in the story.

"It was really important to me to have an artist render Betty how kids really are," the author explained in an exclusive clip shared with PEOPLE. "So Xindi Yan is this artist that I met, and she just had these amazing designs that felt really modern. But also she does these really funny things, like her expression of kids outrage."

"I have three kids myself, and I don't know a kid who doesn't have an epic meltdown at least once a day," said Witherspoon. "So I wanted her meltdown to look real, like I wanted tears to be shooting out of her face."

"Xindi really got that," she proudly added.

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