Reese Witherspoon and Ryan Phillippe reunited over the weekend to celebrate their son Deacon’s 18th birthday.
Phillippe, 47, documented the outing via Instagram on Saturday, sharing a photo of the three happily sitting together at a table and getting ready to indulge in some cake.
“Happy 18th birthday to our gorgeous, smart, talented, and caring son. You are a true light in this world and are so loved by all who know you,” he gushed in the caption. “We are lucky to be your mom and dad. Love you, pup..(I’d say we did pretty good @reesewitherspoon).”
Witherspoon, 45, commented on the post, echoing her ex’s sweet sentiments.
“So proud of our boy,” she wrote. “I mean our ADULT Son! 😮❤️.”
The “Morning Show” star also shared a series of pics of the birthday boy to her own Instagram, writing, “How did this happen?!! @deaconphillippe is 18?!!”
“One day he was trading Pokémon cards, singing Bruno Mars songs, and playing American Ninja Warrior in the backyard. The next day, he is taller than me, cooking the family steaks on the grill and making his own music with his best friends,” she wrote. “My heart is bursting with pride about the young man he is becoming. Happy 18th Birthday Deacon! I love you to the moon around the sun and all the stars ✨ 🥺❤️🎂.”
Witherspoon and Phillippe – who famously starred together in Cruel Intentions – were married from 1999 to 2008. In addition to Deacon, they share daughter Ava, 22.
Witherspoon is also mom to son Tennessee, 9, with husband Jim Toth, while Phillippe shares daughter Kai, 10, with Alexis Knapp.