Days after her 40th birthday, Reese Witherspoon had another momentous occasion to celebrate -- her five-year wedding anniversary to her husband, CAA agent Jim Toth. Congrats, you crazy kids!

On March 26, the mom of three took to Instagram to share the love, posting a black and white photo of the couple holding hands, along with the caption, "Happy anniversary to my sweet husband! 💍 I love you, JT!#5years."

One week earlier on March 20, Reese and Jim partied with Nicole Kidman, Keith Urban, Jennifer Aniston, Justin Theroux and Kate Hudson at her celeb-studded 40th birthday bash at the Warwick in Hollywood. There's been a lot to celebrate in the last seven days!

Happy anniversary to my sweet husband! 💍 I love you, JT! #5years

A photo posted by Reese Witherspoon (@reesewitherspoon) on

The couple, who married on March 26, 2011, at Reese's six-acre ranch in Ojai, California, have one son named Tennessee together. While the duo have been going strong for the past five years -- their romance was a whirlwind one.

Back in January 2012, the "Sweet Home Alabama" actress recounted how she met her future husband at a mutual friend's house party in 2010.

"This really drunk guy was hitting on me, making such an idiot of himself, yelling at me," Reese said in the interview. "Jim came over and said, 'Please excuse my friend. He's just broken up with someone.''

Reese elaborated, "Jim was a really good friend, pulling him out of that situation. That's just kind of who he is, a really good person."

Five years later, Reese is still gushing over her main man!

Previously, the blonde was married to her "Cruel Intentions" co-star Ryan Philippe from 1999 to 2008. The exes have two children together, daughter Ava, 16, and son Deacon, 12.