Reese Witherspoon Wishes Her Son Happy Birthday with A Cute Picture

Reese Witherspoon keeps a low profile while jogging on Friday (October 23) in Brentwood, Calif.

The 39-year-old wore a baseball cap and sunglasses for her midday run. She also was accompanied by a female friend for her workout.

Reese‘s oldest son Deacon just turned 12 years old and the proud mother posted an adorable snap on her Instagram.

“Happy birthday to my sweet 12 year old boy! 🎉🎂🎉You bring joy to everyone you know. I feel so blessed to be your mom ❤️,” she posted.

Also pictured inside: Reese shopping in Santa Monica and running errands around Brentwood on Wednesday (October 21).

25+ pictures of Reese Witherspoon in Los Angeles…