Patrick Mahomes celebrates another trip around the sun!

The Kansas City Chiefs quarterback, who turns 29 on Tuesday, September 17, celebrated the occasion with a birthday party following the Chiefs’ 26-25 win over the Cincinnati Bengals on Sunday, September 15.

Patrick’s wife Brittany, 29, who is expecting their third baby, shared a series of clips from the party on her Instagram stories, revealing a large black and red balloon backdrop with a giant silver number 29.

“We’re celebrating our boy,” the former football player and Kansas City Current co-owner said as she filmed the silver and red decorations.

She then showed a large childhood photo of her husband and added: “This sweet boy.”

The party also included a photo booth and another backdrop that read “Patrick is 29.”

Brittany then shared a Boomerang video of a personalized red mug and can cooler decorated with childhood photos of the birthday boy. While the mug read “Straight Outta 95,” the can sleeve had the words “Throwing It Back To ’95” printed on it to commemorate Patrick’s birth year.

In another video, Patrick is seen standing with another person next to three large cookies – including a 2 and a 9 – covered in icing and lit candles.

The PEOPLE Puzzler crossword puzzle is here! How fast can you solve it? Play now!

Never miss a story — sign up for PEOPLE’s free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories.

A crowd could then be heard singing “Happy Birthday” to the couple while blowing out candles in front of what looked like an aquarium.

Before the party, Brittany revealed that they would celebrate Patrick’s birthday after the Chiefs’ last game.

“We’re celebrating someone’s birthday after the game,” she said while filming a black-and-white pillar decoration covered in childhood photos of Patrick. “And I can’t get over how cute he is,” she added.

Brittany was joined at the game by the couple’s two children – three-year-old daughter Sterling Skye and son Bronze, who turns two in November – to cheer Patrick on. The soon-to-be mother of three supported her in style for the occasion, wearing vintage Chanel.