Chris Pratt Shares Sweet Pic of Pregnant Wife Katherine Schwarzenegger: 'Greatest Party Planner in History!'

The Marvel star and author share two daughters — Lyla, 3, and Eloise, 2 — and are currently expecting baby No. 3

Chris Pratt is shouting out his pregnant wife Katherine Schwarzenegger Pratt!

On Saturday, July 27, the Guardians of the Galaxy actor, 45, shared a photo of the author, 34, on Instagram — and highlighted his wife's party-planning skills.

In the photo, a pregnant and smiling Katherine — who is the daughter of Arnold Schwarzenegger and Mira Shriver — posed in an outdoor area, seemingly in front of a Western-themed party she had planned herself.

“Greatest party planner in history!” Pratt captioned the post.

Related: Chris Pratt Has Asked Wife Katherine Schwarzenegger to Costar with Him in a Movie: 'She's Actually a Very Good Actress' (Exclusive)

In the background of the snap of Katherine, a bouncy house and balloon bouquet indicated a pink theme, while the next slide revealed a petting zoo area containing what looked to be a duck, alpaca and more.

In the photo, what appeared to be the couple’s two children — daughters Lyla, 3, and Eloise, 2 — approached the area dressed in Western-inspired attire, including matching red cowboy boots.

Katherine also got in on the animal action, according to photos of the event she shared on her own Instagram.

The author — who sported pink, plaid overalls and sunglasses for the festivities — posed with a fluffy white rabbit for the pictures, and nodded to the adorable critter in her caption.

"It isn’t a party without a bunny appearance 🐰," she wrote.

The sweet family post comes shortly after a source confirmed to PEOPLE that Pratt and Katherine are expecting their third child together in June. Pratt is also dad to 11-year-old son Jack with ex-wife Anna Faris.

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It also comes shortly after another sweet — and funny — post Pratt dedicated to his wife.

Earlier this month, the Marvel star shared a photo of Katherine on Instagram and poked fun at her extreme sun protection measures.

Related: Chris Pratt's 4 Kids: All About Jack, Lyla, Eloise and His Baby on the Way

On July 2, the actor shared a snap of his wife from across the table during what appeared to be an outdoor lunch date, though she was barely recognizable in a long-sleeved, sun-protective hoodie, coordinating face cover, sunglasses and baseball cap.

"Nice lunch with my wife, who cares deeply about sun protection,” Pratt wrote in the caption. "Me, I love ninjas. So it’s kind of a win-win.”

In on the joke, Katherine reposted the photo on her Instagram Stories. "Me 🤝🏻ninjas," she wrote.

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