Pregnant Olivia Wilde Is Baby Bumpin' in Red -- See Her Glam Maternity Look!

Desiree Murphy

Olivia Wilde is one hot mama!

The 32-year-old actress, who is expecting her second child with fiancé Jason Sudeikis, put her burgeoning belly on full display on Wednesday, stepping out to the Friars Club Entertainment Icon Award event in New York City, which honored her Vinyl director, Martin Scorsese.

WATCH: Olivia Wilde Announces She and Jason Sudeikis Are Expecting Baby No. 2!

Wilde wore a flowy, loose-fitting Valentino dress, which gave fans a perfect peek at her baby bump. She styled her brunette tresses straight with a side part, and completed the glam maternity look with Vita Fede Jewelry, a gold clutch and chunky blue heels.

While posing for photographers on the red carpet, she adorably cradled her belly while flashing a smile. An eyewitness tells ET that later in the night, Wilde joked she was due in three weeks while giving a speech on stage.

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The New York native also took to Instagram, writing, "Last night, I got to honor the great Martin Scorsese, as he received the Friars Club Icon Award."

"I successfully did not give birth on stage, AND got to meet Ellen Burstyn," she added. "Quite a night. Thank you @karlawelchstylist, @gitabass, @harryjoshhair, and @maisonvalentino for cleaning us up for the evening!"

WATCH: Jason Sudeikis Reveals Son Otis' Reaction to Becoming a Big Brother

Wilde was joined by Leonardo DiCaprio, Sacha Baron Cohen, Jonah Hill and Robert De Niro, who all attended the star-studded event in support of Scorsese.

Wilde and Sudeikis announced they were expecting back in April with an adorable photo of their 2-year-old son, Otis, holding his own belly while smiling at mom. "Matching baby bumps," Wilde captioned the black-and-white snap.

When ET caught up with Sudeikis at The Angry Birds Movie premiere in Los Angeles in May, the 41-year-old actor revealed Otis is already looking forward to becoming a big brother. To hear what the toddler had to say, watch the video below!

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