Reese Witherspoon Instagram
September 26, 2017 03:45 PM

Tennessee James is ringing in the full-hand age in style.

The son of Reese Witherspoon and Jim Toth turns 5 this week — and his famous mama used social media Tuesday to share some super sweet wishes for her youngest child.

“Happy Birthday to my littlest guy, Tennessee! 🌈☀️❤️,” the Big Little Lies star captioned an adorable Instagram snap of her son holding up a colorful “5” balloon that looked to be bigger than him.

“Every day you bring us so much joy with your sweet smile and beautiful laugh. I love you so much! 🎉 #feeling5 #HBD,” added Witherspoon, 41.

Want all the latest pregnancy and birth announcements, plus celebrity mom blogs? Click here to get those and more in the PEOPLE Babies newsletter.

RELATED VIDEO: Reese Witherspoon and Daughter Ava Look the Same in Pre-Premiere Photo


The actress and Draper James founder recently dished about Tennessee and his siblings — Deacon Reese, 14 next month, and Ava Elizabeth, 18, Witherspoon’s children with ex-husband Ryan Phillippe — for Southern Living‘s September cover story, saying they “all have funny and unique relationships with each other.”

“Ava is like another parent to Tennessee, like his other mother,” she explained. “I think sometimes he even gets confused — he told Ava ‘Happy Mother’s Day!’ ”

FROM PEN: Super Chef David Burke Shows You How To Make a Decadent Peanut Butter Waffle Sandwich


RELATED GALLERY: Tennessee! Giovanna! Preston and Jayden! See Which Celeb Babies Celebrate Their Birthdays in September

“And Tennessee is just sort of like Deacon’s protégé,” added the Legally Blonde legend in her Southern Living interview. “He follows his older brother around the house all day.”

When asked about the meaning behind her son and dog’s similar geographical names (her German shepherd is called Nashville), Witherspoon — who was raised in Tennessee — joked, “You think I want to go home? You think I miss it?”

You May Like