In true Kennedy fashion ... Maria Shriver put on a brave face and stepped out for lunch with two of the children Arnold Schwarzenegger intentionally fathered.
Maria sported oversized shades outside a restaurant with 13-year old Christopher, and 19-year old Christina in their hometown of Brentwood on Wednesday.
Considering the likely topic of conversation ... it's a miracle they kept anything down.
Maria Shriver -- A Girl's Gotta Eat
5/18/2011 1:15 PM PDT BY TMZ STAFF
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