Julia Roberts Celebrates Twins Hazel, Finn's 18th Birthday With Throwback Baby Photo: 'Love You'

Julia Roberts took a trip down memory lane on her twin children's 18th birthday.

Roberts and her husband Danny Moder's twins, Hazel and Finn, turned 18 Monday. The "Pretty Woman" star shared a throwback photo of them as babies via Instagram to mark the special day.

In the snap, the Oscar winner can be seen carrying one of the twins while the other looked on. However, the babies' faces were not visible due to the angle of the shot.

"18," the actress, who also shares 15-year-old son Henry with her husband, wrote in the caption, adding star emojis. "Love you."

A number of followers and friends commented on Roberts' post, extending their warm birthday wishes for her children.

"Such a beautiful picture! Happy birthdays!!" one wrote. Serge Normant commented, "Happiest birthday, sweet angels!"

"Happy birthday, kiddos!!!" Elizabeth Stewart wrote.

"It can't be!!!!!!! Happy birthday!!!!" Rita Wilson commented.

"Baby grown-ups! Happiest of birthdays, sweet Hazel and Finn!" Andrea Orbeck added.

While promoting her movie "Ticket to Paradise" with co-star George Clooney in October, Roberts talked about her family and making missteps with her kids in an interview with "Today."

"Sometimes I get gripped with fear of blowing it," the 54-year-old actress confessed. "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.'"

She also said that she and Moder welcomed their children at the right time in their lives.

"I met [Moder] when I was ready ... And then we call these children into our lives when we're ready to best partner with them," she explained.

In a 2007 interview with OK Magazine, Roberts shared how having kids changed her for the better.

"I feel that I've expanded as a human being and have more empathy and more compassion. I didn't realize you could really just like your children as much as your friends. I just love them," the "Notting Hill" star said.

In another interview on "CBS Sunday Mornings," Roberts once again opened up about her career and family.

She revealed that while acting "is my dream come true," it was not the only one, pointing to "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," she said, People reported.