Reese Witherspoon Celebrates Son Deacon's 11th Birthday With Halloween Party

Reese Witherspoon shows off her fashion sense in blue while exiting an office building on Thursday (October 23) in Beverly Hills, Calif.

On the same day, the 38-year-old actress celebrated her son Deacon‘s birthday with a fun party. Happy Birthday, Deacon!

PHOTOS: Check out the latest pics of Reese Witherspoon

“To my amazing, caring, thoughtful, creative son Deacon! Can’t believe he is 11! #HappyHalloweenBirthday,” Reese tweeted with a pic. Check out the pic below!

FYI: Reese is carrying a Salvatore Ferragamo bag.

20+ pictures inside of Reese Witherspoon chatting on the phone in Beverly Hills…