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So nice to see her smile!

Maria Shriver enjoyed Saturday afternoon with son Christopher and pal Jamie Lee Curtis, and looks like Jamie Lee's snarky ways got a rise out of Maria. She was laughing up a storm with Jamie Lee, and later hugged her goodbye.

After their outing, Maria and Chris had a mother-and-son dinner date -- they headed to celeb hot spot Katsuya in Hollywood. It's great to see Christopher doing so well after his hospitalization!

At dinner, Maria looked a little more tired -- she'd had a long day! See the pic after the jump.