Chris Pratt and Katherine Schwarzenegger's Relationship Timeline

Pratt and Schwarzenegger were first spotted together enjoying a picnic in California in June 2018. At the time, a source told People that while things were "still new," the two had already gone on "multiple dates" together after being set up by the author's mother, Maria Shriver.

Weeks later, their relationship was seemingly confirmed when they packed on the PDA as they made their way around Los Angeles in August 2018, as seen in photos published by Entertainment Tonight. The publication reported that the pair had taken things to the next level, introducing each other to their family and friends, and had "been almost inseparable" in their free time.

Pratt took his then-girlfriend's birthday as the perfect opportunity to gush over her and confirm their relationship on Instagram with a collage of adorable photos. "Happy Birthday Chief! Your smile lights up the room. I've cherished our time together," he captioned the post. "Thrilled God put you in my life. Thankful for the laughs, kisses, talks, hikes, love and care."

It wouldn't be until February 2019 when Schwarzenegger would first post about Pratt on Instagram, but when she finally did, her caption didn't disappoint. "So incredibly proud of my amazing, talented and hardworking fiancé everyday, but especially today because his movie, THE LEGO MOVIE 2, IS FINALLY OUT!" she wrote. "These special little characters (that were played with every morning and night) Emmet and Rex are voiced by my love, and he did such a great job! Head to the theater tonight with your friends, family, kids or even with your pup! It's so much fun and all about the power friendship! Yayyyyy LEGO !"

Pratt announced his engagement to Schwarzenegger in a heartfelt Instagram post, in which her engagement ring was on full display.

"Sweet Katherine," he wrote. "So happy you said yes! I'm thrilled to be marrying you. Proud to live boldly in faith with you. Here we go! 💍🙏♥️."

Not long after, People reported that the pair had began living together in West Los Angeles. "Since they started dating, Katherine has taken Chris to all of her favorite neighborhood places," an insider told the outlet at the time. "And Chris clearly likes her neighborhood."

Later that month, Pratt spoke to ET about his personal life and his goals moving forward, which included "lots of kids." "Maybe less time spent working, more time spent enjoying life," he added. "I always want to be that guy that works to live, not lives to work. I think [I want to spend] just a lot of time at the farm and a lot of time catching a lot of fish and seeing lots of sunsets."

The duo finally stepped out for their joint red carpet debut at the "Avengers: Endgame" premiere in Los Angeles. The outing came weeks after Schwarzenegger gave ET an update on their wedding plans. "I feel like we're all really involved in wedding planning," she said. "I think that, you know, for me, my family is very involved. I'm very involved, [Chris is] very involved . . . So it's a great combination of everything and just a really exciting and fun [time]."

"I'm very happy in all areas of my life," she added. "And I feel really blessed and really lucky."

The pair said "I do" in front of family and friends on a ranch in Montecito, CA. The day after their wedding, Pratt shared the happy news on Instagram. "Yesterday was the best day of our lives!" he wrote. "We became husband and wife in front of God, our families and those we love. It was intimate, moving and emotional. We feel so blessed to begin this new chapter of our lives."

"We are so thankful to our families and our friends who stood with us and grateful to Mr. Giorgio Armani who created a once in a lifetime dress for Katherine to wear and for me, the perfect suit," he continued. "This morning we feel nothing but blessed."

The couple welcomed their first child together, a daughter named Lyla, in August 2020. Pratt announced the newborn's arrival on Instagram, writing, "We are beyond thrilled to announce the birth of our daughter, Lyla Maria Schwarzenegger Pratt. We couldn't be happier. Both mom and baby are doing great. We are extremely blessed. Love Katherine and Chris."

The proud parents welcomed a second baby girl, Eloise, in May 2022. They both shared the news in separate Instagram posts with the same caption that read: "We are so excited to announce the birth of our second daughter, Eloise Christina Schwarzenegger Pratt. We feel beyond blessed and grateful."

Since welcoming their children, Pratt has been vocal about his adoration for Schwarzenegger as a mom. In honor of Mother's Day in 2023, he shared a sweet tribute. "Happy Mother's Day to all of the mothers out there. Especially grateful today for Katherine. You're a wonderful partner. You've provided me such a blessed life," he wrote. "Our two daughters are so lucky to have you and you're the best step mama to Jack."