Patrick Mahomes and Brittany Matthews are celebrating their baby girl's first birthday!

The NFL star and his fiancée marked their daughter, Sterling Skye's, first birthday on Sunday by sharing a series of photos of her throughout the year.

"My ❤️ turns one today! Daddy loves you," Mahomes captioned his Instagram post, including snaps of the father-daughter duo hanging out in a pool.

In another photo, Sterling wore a football t-shirt supporting her dad.

Brittany Matthews, 26, wrote via Instagram on February 20, alongside a video of Sterling's milestones.

"Your Daddy & I love you more & more every day. We cannot wait to see where this life takes you & all the things you will conquer! #stersworld."

The Texas natives, who were high school sweethearts, got engaged in September 2020, shortly after Mahomes' team's Super Bowl LIV victory. The couple announced they were expecting their first child together one month later. Sterling, now 12 months, was born in February 2021.

The engaged couple's celebratory posts for Sterling come on the heels of controversy after the fitness trainer was criticized for her game-day behavior earlier this year. Football fans were upset after Matthews — and Mahomes' brother Jackson Mahomes — sprayed champagne on unsuspecting Chiefs fans seated below their box after the team's playoff victory last month.

Rumors then swirled that Mahomes had banned his fiancée and 21-year-old brother from attending future NFL games, citing them as disruptions.

"Y'all just be making stuff up these days," the Texas Tech University alum tweeted on Friday, February 18, denying the claims.