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Bell's baby bump debut!

Kristen Bell glowed in a gorgeous black shift by Monique Lhuillier to mark her first red carpet appearance since confirming her second pregnancy on June 23.

PHOTOS: Kristen's pregnancy style

"I dressed for my current shape," the "Veronica Mars" actress told Us Weekly at the Lexus Short Films Series on July 30 in L.A. The cocktail frock, which she paired with an Edie Parker clutch, featured a nude panel and voluminous gathered back.

PHOTOS: Kristen and more stars in the baby bump hall of fame

The ladylike dress showed off her growing bump in a casual-yet-chic way, while nude heels elongated her legs. "It was a lucky fit, sort of open and non-tight," she said.

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While dressing a pregnant body can be challenging, Bell tries to stay true to her style. "I still like to feel sexy," the mom to 16-month-old Lincoln told Us.

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That mom-style does not extend to one category in her wardrobe. "I definitely threw out all of my short shorts," she told Us. "I'm 34 and no one needs it. Do you know what I mean? Just no one needs it."