You won’t be able to tell the difference between Reese Witherspoon and her daughter in these birthday Instagram posts

Happy 18th birthday, Ava Phillippe! Reese Witherspoon’s daughter celebrated her birthday yesterday, and you know what that means: a ton of Instagram photos. Witherspoon honored Phillippe’s big day with a series of sweet tributes that are utterly sincere — and sincerely adorable.

It’s no secret that these two are practically identical twins. Some studio heads have a hard time telling them apart. In fact, Witherspoon admitted even her young son has trouble telling them apart. We don’t blame you, buddy.

First, the proud mama posted a throwback photo of the mother/daughter duo.

The picture clearly shows how much Ava takes after her mom (a similarity that has only grown with age), and the love Witherspoon has for her daughter. What a sweet and thoughtful message to get from a proud mother.

https://www.instagram.com/p/BY1EUPWhk3f

Witherspoon also posted a more current photo of her little mini me.

https://www.instagram.com/p/BY1JGhkh9SS

We love the simple hashtag: #18.

18 is a milestone birthday for a reason, and Phillippe was understandably excited to celebrate. The college-bound teen shared a seriously cute throwback photo of her own with the same hashtag. It features her as a toddler, decked out in what appears to be a Belle gown from Beauty and the Beast. It’s a sweet look at simpler days.

Look how much she’s grown!

But that wasn’t the only moment Phillippe shared. She also posted a picture of the beautiful handwritten letters her mother sent her (18 in all) to celebrate her becoming an adult. Wrapped in a pink ribbon, Phillippe confessed that the contents of the letters made her cry (hard).

We can’t think of a sweeter birthday gift. Happy 18th, Ava!