Reese Witherspoon shares photos with daughter Ava Phillippe for her 25th birthday

"Keep shining your beautiful light my sweet girl!"

Reese Witherspoon is celebrating her daughter Ava Phillippe's latest milestone.

The Oscar-winning actress, 48, took to Instagram earlier this week to wish her eldest child a happy 25th birthday.

"Happy Birthday to my amazing daughter @avaphillippe who happens to be one of the most genuinely kind-hearted and wise people I know," she wrote. "I love you with all [my] heart."

She added, "Keep shining your beautiful light my sweet girl!"

The post included a photo of the "Big Little Lies" actress and Phillippe in all-black looks enjoying some mother-daughter time at a cafe, a throwback photo of them from when Phillippe was a baby and a portrait of Phillippe holding a flower.

Phillippe took to the comments of her mom's post, writing simply, "Love you mama."

Witherspoon shares her daughter and son Deacon Phillippe, 20, with ex-husband and fellow "Cruel Intentions" alum Ryan Phillippe. She is also mom to son Tennessee, 11, whom she shares with ex-husband Jim Toth.