Photo: Reese Witherspoon/instagram, Frazer Harrison/Getty

Reese Witherspoonis celebrating her son on his special day.
On Sunday, theBig Little Liesactress celebrated sonDeaconon his 19th birthday, sharing a current photo of the budding actor as well as one of him as a kid on Instagram.
“Big Birthday Love for@deaconphillippetoday ! 💫,” Witherspoon wrote in the caption, calling her son “the guy who possesses the most joyful energy, endless drive, ambition and talent. And the biggest heart in the world. 💓”
“Could not be more PROUD of you.. I love you, D! 💫💙 🎶,” she concluded the heartfelt post.
Witherspoon shares Deacon and daughterAva, 23, with exRyan Phillippe. The star is also mom to Tennessee James, 10, with husband Jim Toth.
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Monica Schipper/FilmMagic, Mike Coppola/Getty

Phillippe also celebrated Deacon’s birthday with posts on his Instagram Story. On one photo of Deacon leaning against a ledge in sunglasses and a hat with the sea behind him, Phillippe wrote, “Happy birthday to the best.”
Sharing a selfie with his son later on, Phillippe added, “Miss ya so much, homie.”
In regards to thepopular beliefthat Witherspoon and Ava are lookalikes, Phillippe, 48, revealed his thoughts on the topic while speaking toExtraearlier this month.
“What I get a lot lately is they thinkDeaconlooks like her and Ava looks like me,” he said, referencing their son.
Reese Witherspoon/Instagram

“My response is always, ‘Duh … How are you surprised that children look like their parents?’ " he added with a laugh. “Isn’t that biologically how it’s meant to work?”
In August, theLegally Blondeactress shared a heartwarming photo onInstagramembracing her son, sweetly noting that the hug from Deacon “made [her] whole year.”
In the cute selfie, Deacon wrapped his arms around his mom’s shoulders as the pair smiled for the camera.
source: people.com