sunglasses Reese Witherspoon  deacon sweats

A little rest and relaxation did Reese Witherspoon a lot of good.

The Oscar winner looked completely at ease while grocery shopping with her oldest son Deacon in the Pacific Palisades on Sunday. The two were dressed down in athletic wear and spent the rare mother-son quality time to run errands around town.

Reese returned from a week-long family vacation in the Bahamas on Saturday. While there, she bonded with her other son, baby Tennessee. The actress shared several photos from her "spring break," including a shot of herself sitting on the beach in half sand half water with her adorable toddler. In the pic set against a blue backdrop of vast sky and ocean, Reese looks down at her boy as he tries to reach up to her.

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She told Red magazine last year that she's always worried about one child or the next.

"Ever since I had the baby, I can't remember anything," she told the mag. "Serious, this child stole my brain. [It's] like CNN ticker tape running through my mind at all times, 'Where is Ava? She's okay. Good. Where is Deacon? He's okay. Good. Where is Tennessee? Is he okay? Yes. Great. Back to Ava.' It doesn't stop."

It probably won't stop anytime soon as the actress will be busier than ever as she gears up to film her new movie, Nancy Meyers' The Intern alongside Robert De Niro.

Her latest film, Atom Egoyan's Devil's Knot about the West Memphis Three trial, hits theaters on May 9. Reese will appear in Paul Thomas Anderson's Inherent Vice later this year. The pic bows on Dec. 12.