The couple, who have been married since 2022, also share kids Sterling and Patrick III (‘Bronze’) together – and Brittany praised her husband’s ability as a father in her touching social media post.
‘Happy Birthday to one of the greatest humans ever, my husband, best friend and the best daddy ever!,’ she wrote.
‘We are so grateful you are ours! We Love Youuuuuu’
Brittany included several photos of their family in the post, including one of them before a Chiefs game and another of Patrick sweetly holding his children.
She also shared snaps from Patrick’s 29th birthday party – which she held at their home after the Chiefs beat the Bengals on Sunday.
The pregnant mother-of-two decorated the house in style, showing off an incredible balloon arrangement on her Instagram story.
Brittany shared a picure of a huge black, red and silver balloon arch sprawling across a corner of the room with a No. 29 metallic cutout at the center.
The former soccer player even had custom cups and beer holders made, featuring childhood photos of the three-time Super Bowl winner.
Among the attendees at the party was pop star Taylor Swift, who is dating Chiefs star Travis Kelce and is known to be close friends with Brittany.
Swift was pictured at the event with fellow Chiefs WAGs Chariah Gordon and Sheawna Weathersby, the partners of Mecole Hardman and Chris Jones respectively.
The singer, who has expressed differing political views than Brittany of late, did not sit with Mahomes during the game for the second straight week.
However, her presence at the party suggests that their friendship is fine.