Reese Witherspoon marks son Tennessee's final year in rare update

Reese Witherspoon is celebrating her son Tennessee James Toth birthday in style as he achieves a new milestone.

The Legally Blonde actress took to her Instagram on Friday, September 27, to mark the special occasion before her youngest son reaches his teens.

Sharing a rare photo of Tennessee with her followers, the mom-of-three wrote in the caption of the removed post, "Happy 12th Birthday to my wonderful son, Tenn! I'm so lucky to have your joyful, curious, hilarious spirit in my life making me laugh everyday. I love you, buddy.”

In the photo, the mother-son duo snuggled up in a diner booth, with her 12-year-old beaming alongside her. The proud mom couldn't help but glow with joy over her little one.

Tennessee is Witherspoon’s third child, whom she shares with her former husband Jim Toth. Meanwhile, the actress shares a 25-year-old daughter, Ava, and her 20-year-old son, Deacon with her ex-husband Ryan Phillippe.

The 48-year-old actress frequently shares updates about her children on social media. In addition, she has also been accompanied by her son Deacon, 19, at various red carpet events in the past.