Olivia Wilde Bares Baby Bump While Cooking in a Bikini

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Olivia Wilde is going au naturel during her pregnancy!

The Vinyl star, who is expecting her second child with fiancé Jason Sudeikis, went makeup-free as she cooked dinner on Saturday.

WATCH: Olivia Wilde Shows Off Growing Baby Bump in Black Bikini

Wilde made sure to keep her hair swept up and out of the way in a high bun, but she also didn't have to worry about getting any clothes dirty. She rocked nothing but a bikini that showed off her growing baby bump!

May we all get photographed in such flattering light, eh?

The 32-year-old actress doesn't always bare her belly around the house, however. Last week, she showed off an awesome pair of breakfast-themed pajamas that she joked was her "sexy lingerie."

NEWS: Olivia Wilde Says Son Otis Is Already a 'Little Feminist'

ET caught up with Sudeikis at the Angry Birds premiere in May, where he revealed that the couple's 2-year-old son, Otis, is excited to become a big brother. "He knows that it's something in an egg," the 40-year-old actor said of his son's reaction to the baby news.

Hear more from Sudeikis about his growing family in the video below.

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