Katherine Schwarzenegger celebrates her 33rd birthday with Chris Pratt and family in Brentwood

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Katherine Schwarzenegger looked casual cool while celebrating her 33rd birthday at A Votre Sante restaurant in Brentwood on Tuesday.The self-help book author was joined by husband Chris Pratt, 43, mother Maria Shriver, 67, as well as sister Christina Schwarzenegger, 31, and brother Patrick Schwarzenegger, 29.The birthday girl opted for an effortless look, sporting a warm black jacket over a black top and blue jeans, which she paired with sturdy black boots.

Birthday girl! Katherine Schwarzenegger looked casual cool while celebrating her 33rd birthday at A Votre Sante restaurant in Brentwood on Tuesday with husband Chris Pratt, 43Katherine wore her shoulder-length brunette tresses down for the outing.

She accessorized with triangle-shaped red sunglasses as well as a necklace and earrings.As for glam, Arnold Schwarzenegger's daughter kept it simple, showing off her natural beauty with little makeup.

Family affair: She was also joined by mother Maria Shriver, 67, as well as sister Christina Schwarzenegger, 31 Brother: Also in attendance was brother Patrick Schwarzenegger, 29, who rocked a patriotic leather jacket Meanwhile Pratt rocked a grey top underneath a black jacket and black jeans.The Jurassic world actor, 43, finalized his look with black boots and black sunglasses and sported a matching baseball hat.The proud husband also took to Instagram to wish his spouse a happy birthday as he shared a number of family snaps featuring the couple.