Patrick Mahomes and Brittany Matthews welcomed daughter Sterling Skye on Feb. 20

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Brittany Matthews Patrick Mahomes
Credit: Patrick Mahomes Instagram

Patrick Mahomes is spending some quality time with fiancé Brittany Matthews and their 4-month-old daughter, Sterling Skye.

On Thursday, the Kansas City Chiefs quarterback, 25, shared a sweet photo of the trio at the American Century Championship golf tournament, where Mahomes appeared as a celebrity participant.

In the shot, Mahomes was dressed in his golfing attire as he posed in the green next to Matthews, 25, and their baby girl.

"Family Vacation ⛳️," captioned Mahomes, to which Matthews responded in the comments section, "My favs🥺❤️."

Matthews also shared Mahomes' post on her Instagram Story, adding a GIF in the caption that read: "Love y'all!"

Brittany Matthews Patrick Mahomes
Credit: Brittany Matthews Instagram

The high school sweethearts — who got engaged in September, when Mahomes popped the question on the same day he received his Super Bowl ring — welcomed their first child on Feb. 20.

The growing family has since celebrated a number of milestones in Sterling's first few months of life, most recently Mahomes' first Father's Day as a dad.

"Happy 1st Fathers Day!!! We love you," Matthews wrote on Instagram at the time. Mahomes had also previously paid tribute to his wife-to-be on her first Mother's Day.

The couple and their little one recently enjoyed a family vacation in Cabo San Lucas, Mexico. Posting a family photo from a boat, Matthews noted that she was "just pumpin and momin" on her Instagram Story.

RELATED VIDEO: Brittany Matthews Says She's 'Soaking in Every Minute' with Newborn Daughter Sterling

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Photos of Sterling's face were first shared in June, after her parents expressed their desire to wait until they were comfortable putting her image out there.

"We will share photos of her when we [feel] the time is right," Matthews wrote on social media back in February. "I know the internet will instantly take the photos of her and share everywhere so just preparing myself for my newborn baby girl to be shared to the world! Right now we are just soaking in every minute with her."