Jonah Hill’s girlfriend Olivia Millar has welcomed child as she has flat belly in Malibu

Jonah Hill is a dad!

DailyMail.com can exclusively reveal that the actor has welcomed his first child with fashion designer Olivia Millar – who stepped out in Malibu on Thursday, showing off her post-pregnancy flat stomach.

It is the first child for the happy couple.

Hill’s publicist shared with DalyMail.com that the baby arrived this spring.

The last time Millar was pictured was in late April in shared photos by DailyMail.com. Olivia had a big baby bump as she headed to dinner with the Wolf Of Wall Street actor in Santa Monica, California.

This is the first time Millar has been seen in public since that dinner.

New Mother Glow: The designer was seen sporting a flat stomach in photos obtained exclusively by DailyMail.com

On Thursday, the partners walked side by side in a parking lot while looking at each other. They picked up takeout from Lucky restaurant in the celebrity seaside town.

Millar looked slender in her eye-catching sweater that seemed too big. She added light gray sweatpants and blue and white Adidas flip flops with a fresh pink pedicure.

Her dark brown hair was straightened and pulled back, revealing her face without makeup. She added sleek sunglasses with a light brown tint.

Jonah wore a casual outfit consisting of a light blue shirt worn as a jacket over a white T-shirt and dark straight-leg trousers with fringed hems.

He added thick light blue socks to match his jacket and light blue Vans without laces. The Moneyball actor added a beige cap with blue accents over his somewhat long and curly hair with highlights.

As usual, Jonah sported a bushy beard. He donned aviator sunglasses while carrying his car keys and Lucky’s carry-on bag.

Lucky’s Malibu is located in the posh Malibu Country Mart on Cross Creek Road. The restaurant offers salads, Matzo Ball soup, sandwiches, tacos, smoked salmon and omelettes.

At the end of April, Jonah’s girl looked pregnant when she was in the famous hot spot Katsuya. They joined his parents Richard Feldstein and Sharon Lyn Chalkin.

Slim: The costume designer looked slimmed down in the new images as she wore a knitted Barbie pink turtleneck that showed a hint of her flat stomach

New mom fun! In late April, Olivia was pictured sporting a big baby bump as she headed to dinner with the Wolf Of Wall Street actor in Santa Monica, California. This is the first time Millar has been seen in public since that dinner

Olivia showed off her burgeoning baby bump in a billowing beige skirt and artsy sweater, while Hill sported a cozy maroon look with a cartoon graphic.

The pair were first paired in August 2022.

Engagement rumors have been flying since Olivia was spotted wearing a large square-cut diamond ring on her finger in April.

Not much is known about the brunette mom-to-be apart from her work as a co-founder of the online vintage site Chasseresse with her big sister Raychel Roberts.

On Thursday, her wedding finger was under her sweater.

The daughter of top model Esmé Marshall first revealed her belly and ring in March when she went shopping at The RealReal in Santa Monica — not far from Hill’s $6.7 million mansion.

The pair have kept their relationship private and have not appeared on the red carpet together nor have they confirmed their relationship on social media.

His wacky style is backed up: Here he wore a wig as she sat next to Lisa Rinna during the game between the Los Angeles Lakers and the Phoenix Suns at the Crypto.com Arena in Los Angeles in April

Jonah was first pictured kissing Millar passionately in Malibu in August 2022.

In September 2022, the duo was also spotted spending time together in Santa Barbara on a road trip together.

Before Olivia, Hill dated surfer and law student Sarah Brady in 2021. The Winning Time director has also dated Brooke Glazer, Erin Galpern and Isabelle McNally.

He ended his yearlong engagement to KITH NYC lead stylist/producer Gianna Santos in 2020.