InstagramChris Pratt is sending some unconditional love to Katherine Schwarzenegger on her 29th birthday.
In what marks one of the only times Pratt has ever discussed their relationship publicly, the Guardians of the Galaxy star took to Instagram on Thursday with a heartfelt message for his girlfriend of at least six months.
"Happy Birthday Chief!" Chris, 39, captioned a series of never-before-seen snapshots of the couple. "Your smile lights up the room. I've cherished our time together. Thrilled God put you in my life. Thankful for the laughs, kisses, talks, hikes, love and care."
In one especially adorable photo, the A-list actor plants a kiss on Katherine's cheek, who is also shown giving her man a pedicure and posing for a selfie while doing a face mask. Chris also shared a few shots of Katherine smiling for the camera, as well as a religious wood carving he most likely created for her.
Chris and Katherine have been practically inseparable since photos of the duo indulging in a romantic picnic made headlines last June.
And just last night, Chris enjoyed some quality time with Katherine's younger brother, actor Patrick Schwarzenegger, at a Los Angeles Clippers game.
So what makes this Hollywood relationship the real deal? A source recently told E! News, "From the moment they met, it just seemed different for Katherine. This is definitely the most serious relationship she has had. They haven't been together that long but everyone is rooting for an engagement to happen soon."
In honor of Katherine's special day, check out all of her and Chris' cutest moments by scrolling below!
Summer Loving
In June 2018, an insider told E! News that Chris Pratt was "smitten" with Katherine Schwarzenegger, adding that the Jurassic World star was "super happy" about the start of their blossoming relationship.
Meeting the Family
The couple took their romance to next level by spending time with the Schwarzenegger family. As it turned out, Katherine's mom Maria Shriver played matchmaker after meeting Chris through church.
Getting Close With the Pratts
By September 2018, Katherine was hanging out with the Jurassic World star's family and friends.
So Happy
The couple were all smiles during their outing Chris' brother Cully Pratt.
Birthday Tribute
"Happy Birthday Chief!" Chris captioned a series of never-before-seen snapshots in December 2018. "Your smile lights up the room. I've cherished our time together. Thrilled God put you in my life. Thankful for the laughs, kisses, talks, hikes, love and care."
She Said Yes!
Chris popped the question to Katherine in Montecito, Calif., with the duo announcing their engagement in January 2019.
"Sweet Katherine, so happy you said yes!" Chris wrote on Instagram. "I'm thrilled to be marrying you. Proud to live boldly in faith with you. Here we go!"
Red Carpet Date
The two make their red carpet debut as a couple at the Avengers: Endgame premiere in Los Angeles in April 2019.
California Wedding
Katherine and Chris wed in June 2019 at a star-studded ceremony on San Ysidro Ranch in Montecito, Calif.
Celebrity guests included Katherine's dad Arnold Schwarzenegger, Guardians of the Galaxy director James Gunn and Chris' Parks and Recreation costar Rob Lowe.
Cooking in Quarantine
The pair spent the pandemic together, with the Marvel star adorably crashing the author one of the author's baking videos.
Oh Baby!
In April 2020, E! News learned that Katherine was pregnant with the couple's first child together.
Little Lyla
"We are beyond thrilled to announce the birth of our daughter, Lyla Maria Schwarzenegger Pratt," the couple shared in an August 2020 Instagram post. "We couldn't be happier. Both mom and baby are doing great. We are extremely blessed."
Girl Dad
Katherine shared this photo of her husband in June 2021.
Double the Joy
In December 2021, news broke that Chris and Katherine were expecting their second baby together.
Hello Eloise
The duo welcomed daughter Eloise Christina Schwarzenegger Pratt on May 21, 2022.
"We are so excited to announce the birth of our second daughter," they shared in a Instagram statement a day later. "Mama and baby are doing well. We feel beyond blessed and grateful. Love, Katherine and Chris."
Daddy Dearest
Katherine posted this pic of her husband with their youngest daughter on Father's Day 2022.
Baby No. 3
They became parents again in November 2024 with the arrival of son Ford Fitzgerald Schwarzenegger Pratt.
Happy birthday, Katherine!