Reese Witherspoon Shares Adorable Photo of Son Tennessee on His 5th Birthday

Jennifer Davis
Updated

Reese Witherspoon's littlest mini-me is growing up fast! Today the Home Again star's youngest son Tennessee Toth celebrates his fifth birthday, and Witherspoon took to Instagram to mark the special occasion.

"Happy Birthday to my littlest guy, Tennessee!" she wrote on Instagram alongside a photo of him holding a giant balloon that's almost as big as he in the shape of a 5. "Everyday you bring us so much joy with your sweet smile and beautiful laugh. I love you so much! #feeling5 #HBD."

Happy Birthday to my littlest guy , Tennessee! ????????Everyday you bring us so much joy with your sweet smile and beautiful laugh. I love you so much! ???? #feeling5 #HBD

A post shared by Reese Witherspoon (@reesewitherspoon) on Sep 26, 2017 at 9:15am PDT

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Witherspoon's mini-me son isn't the only one of her children to celebrate a birthday this month. Her oldest child, daughter Ava, turned 18 on September 9, and if we can't believe that little Tennessee is five, we're definitely stunned that Reese's daughter is already an adult.

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For her birthday, Reese also took to Instagram posting a throwback photo and a current portrait. Reese definitely knows how to show the love on social.

Happy 18th Birthday to my sweet girl @avaphillippe ! ????Your kindness, grace, intelligence and humor never cease to amaze me. I love you and your HUGE ?? and I feel so lucky that I get to be your mom. ????#proudmom #18

A post shared by Reese Witherspoon (@reesewitherspoon) on Sep 9, 2017 at 10:47am PDT

#18

A post shared by Reese Witherspoon (@reesewitherspoon) on Sep 9, 2017 at 11:28am PDT