Reese Witherspoon Shares Gorgeous Photo of Daughter Ava Phillippe on Her 17th Birthday

Can you believe that Reese Witherspoon has a 17-year-old daughter?

The proud mom took to Instagram today to share a photo of her and ex-husband Ryan Phillippe's not-so-little girl on her birthday today, and we can't help but marvel over the teen's striking beauty. In the snap, Witherspoon's mini-me smiles as she poses for the camera. The blonde beauty wears a cute floral dress and coordinating gray knit cardigan sweater with a delicate necklace, earrings, and ring as her long locks cascade down around her shoulder.

"Can't believe my baby is 17 today! I love you, @avaphillippe," the 40-year-old star captioned the stunning image of her daughter. "Your gorgeous heart and loving spirit never cease to amaze me! I'm so lucky the universe let me be your mother. #HBD #17DancingQueen."

And while Ava definitely bares a resemblance to her actress mom, she also certainly inherited some of her famous dad's features as well.

The apple doesn't fall far from the tree in this family.