Celebrity Celebrity Family Celebrity Kids Reese Witherspoon's Son Tennessee Turns 6 with a Tribute from His Mama: 'My Sweet Little Boy' Reese Witherspoon, who shares son Tennessee with husband Jim Toth, is also mom to son Deacon, 14, and daughter Ava, 19, with ex-husband Ryan Phillippe By Jen Juneau Jen Juneau Jen Juneau is a News and Movies Staff Writer at PEOPLE. She started at the brand in 2016 and has more than 15 years' professional writing experience. People Editorial Guidelines Published on September 27, 2018 11:20AM EDT Photo: Reese Witherspoon/Instagram Many happy returns, Tennessee James! Reese Witherspoon and husband Jim Toth‘s son can’t contain his excitement over turning 6, throwing an open-mouthed smile at the camera in a snapshot his mom shared on Instagram Wednesday to mark the occasion. “Heyyyy!! It’s this little guy’s 6th birthday! Happy birthday to my sweet little boy, Tennessee! 🎈” Witherspoon, 42, captioned the photo of her son gripping a bundle of yellow and white balloons. “He makes me smile & laugh and remember the important things in life every day!” Later, the Whiskey in a Teacup author shared a couple of glimpses into her youngest child’s birthday bash on her Instagram Story, including a photo of him holding balloons in front of the family’s front door and a video of Tennessee explaining his cake to his parents. “It’s made out of confetti!” he says excitedly of the creative confection, which is in the shape of Pokémon character Electabuzz and reads, “Happy 6th Birthday Tennessee!” Want all the latest pregnancy and birth announcements, plus celebrity mom blogs? Click here to get those and more in the PEOPLE Parents newsletter. Reese Witherspoon/Instagram Tennessee Toth Reese Witherspoon/Instagram Tennessee Toth’s birthday cake Ryan Phillippe Shares Photo with His and Reese Witherspoon’s Mini-Me Children Tennessee has a history of memorable birthday celebrations. When he turned 5 last year, the youngster held 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,” the Legally Blonde actress captioned her adorable Instagram snap. For his fourth birthday in 2016, Witherspoon, Toth and her two older kids Deacon Reese, 14, and Ava Elizabeth, 19, showered the youngest family member with affection — and a Teenage Mutant Ninja Turtles-themed party! RELATED VIDEO: Like Mother, Like Daughter! These Celebrity Kids Are Spitting Images of Their Famous Moms While school is back in session now, Tennessee had quite the fun-filled summer. In June, he kicked off the season by adorably donning a navy-blue cap and gown at his preschool graduation. Late last month, Tennessee and big brother Deacon spent some time bonding on the beach, wearing green and blue swim trunks and examining something they found in the sand. “Last days of summer! 🏖💕 Love my boys!” Witherspoon captioned the sweet image.