Reese Witherspoon and Ryan Phillippe share adorable tributes to Ava on her 18th birthday

Reese Witherspoon and Ryan Phillippe’s daughter, Ava, is all grown up, celebrating her 18th birthday on Saturday. Witherspoon and Phillippe both took to Instagram and paid extra sweet happy birthday tributes to their daughter on her special day.

Both shared adorable throwback pics of themselves with their daughter, showering her with love as well as acknowledging the smart woman she’s become as Witherspoon wrote, “Happy 18th Birthday to my sweet girl @avaphillippe ! Your kindness, grace, intelligence and humor never cease to amaze me. I love you and your HUGE [heart] and I feel so lucky that I get to be your mom. #proudmom #18”

The teenage herself also took to social media. Ava, who is her mother’s uncanny lookalike, shared a stack of letters her mom wrote to her with the caption, “18 letters that made me cry (hard) today, courtesy of my lovely mother.

Phillippe shared a series of photos , tagging each one with a different part of a message that all together read, “Happy birthday, punk. I love you more than any strangers need [to] read, but… you are the coolest… smartest… most beautiful daughter a father could ever have.”

18 letters that made me cry (hard) today, courtesy of my lovely mother.

A post shared by Ava Phillippe (@avaphillippe) on