Taylor Swift and Brittany Mahomes, the wife of Kansas City Chiefs star quarterback Patrick Mahomes, are cementing their friendship with a touchdown celebration handshake that delighted fans on Sunday, according to FOX News.

 During the game between the Chiefs and the Los Angeles Chargers, Mahomes connected with Marquez Valdes-Scantling for the Chiefs' first touchdown, sparking an eruption of joy at Arrowhead Stadium as the home team took a 10-3 lead.

Amid the celebrations, Swift, who has been attending games to support Travis Kelce in four of the last five matches, showcased the handshake she had clearly practiced with Brittany Mahomes.

The intricate handshake began with Swift and Mahomes exchanging two high-fives, followed by two back-handed high-fives, before clasping each other's hands and ending with a hip bump.

The seamless execution of the handshake demonstrated the effort they had put into perfecting it. The two friends had more in store, as Kelce scored a touchdown later in the half.

As Patrick Mahomes delivered a shovel pass to the veteran tight end, Kelce displayed his strength and determination by pushing through defenders to reach the end zone with just eight seconds left in the half.

This touchdown marked Travis Kelce's 50th career touchdown, placing him and Mahomes in the fourth position among quarterback-tight end duos in NFL history. During their second celebration, Swift and Brittany Mahomes incorporated a 360-degree turn and locked hands in a circle before ending with a traditional chest bump.

Notably, during the viral celebration, fans and media observed that Taylor Swift was wearing a friendship bracelet with Travis Kelce's #87 jersey number in between two hearts.

READ NEXT: Taylor Swift Skipped Travis Kelce's Game 

New Football Besties

Taylor Swift and Brittany Mahomes initially connected earlier this month, the Kansas City Star noted.

They met up ahead of the Chiefs' game against the New York Jets on October 1, where they enjoyed dinner together in New York, joined by actresses Blake Lively and Sophie Turner, as well as Lively's sister, Robyn. The gathering was filled with laughter, camaraderie, and memorable moments.

Their friendship made headlines during the Chiefs' victory over the Denver Broncos on October 12 when cameras captured Swift and Mahomes sharing a warm embrace following a significant pass completion to Kelce.

Their bond earned them the affectionate title of "football besties," and it generated positive reactions across social media.

During the game on Sunday, Taylor Swift watched from a box alongside members of the Mahomes family, including Brittany, Jackson, and Patrick Mahomes' mother, Randi Martin.

Taylor Swift and Travis Kelce

Additionally, Taylor Swift and Travis Kelce have made their connection public, with Swift supporting Kelce during a game against the Chicago Bears in September.

Sources suggest that their relationship might be progressing toward the next level, with hints that the "L word" might soon be part of their narrative, per Us Weekly.

Friends close to them believe that they could be on the brink of love, emphasizing the joy and excitement Taylor Swift has found in Travis Kelce's company.

READ MORE: Bradley Cooper, Gigi Hadid Fuel More Romance Rumors 

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Written by: Bert Hoover

WATCH: Taylor Swift Wears Travis Kelce Bracelet At Chiefs Game - From Access Hollywood