Julia Roberts Shares Rare Throwback Photo Of Her Twins On Instagram As They Turn 19

They grow up so fast!

Julia Roberts' twins, Hazel Patricia and Phinnaeus Walter, turned 19 on Tuesday, and the actor took to Instagram to celebrate.

Roberts shared a rare throwback photo of herself with her twins when they were babies, writing in the caption:

"✨✨19✨✨ There are no words for the joy, the fun, the wild rumpus of life together. 💕"

You can see the post below.

Fans of the Pretty Woman joined the celebration, with a few expressing disbelief that the twins made their appearance nearly two decades ago.

@juliaroberts/Instagram

@juliaroberts/Instagram

@juliaroberts/Instagram

@juliaroberts/Instagram

@juliaroberts/Instagram

@juliaroberts/Instagram

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InStyle/Facebook

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Roberts also has another son, Henry Daniel, 16, with husband Danny Moder.

And while the actor typically keeps her children out of the spotlight, she has been quite candid about her journey as a mother.

Last year, while joining George Clooney on Today, Roberts told host Hoda Kotb that she occasionally "blows it" as a mom.

"Sometimes I get gripped with fear of blowing it."

"And sometimes I've just said to my kids, 'So today, me as a mom? Can we just take that off the board because I blew it.'"

And Roberts shared on CBS Sunday Morning last year that acting took a back seat to being a mother.

"It just never consumed me, being an actor."

"[My acting career] is my dream come true. But it's not my only dream come true."

"The life that I've built with my husband, the life that we've built with our children. And that's the best stuff. … The point is to come home at the end of the day triumphantly to them."

So sweet. ❤️ Happy birthday, Hazel Patricia and Phinnaeus Walter!