Taylor Swift was seemingly a part of her fiancé Travis Kelce's unofficial high school reunion. "Viking Nation, what a blessing this weekend [was] in KC," Kelce's former football coach wrote via the Villa Angela-St. Joseph High School's X page on Wednesday, December 17. "Watching and getting to spend time with Travis Kelce, his family and six former players was amazing!" He added, "They're all doing great in life! Anyone who doubted Trav has been proven wrong. So proud of him and his future!" In an uploaded pic, Kelce, 36, posed with his childhood coach and former teammates in his private suite at Arrowhead Stadium after the Kansas City Chiefs' game on Sunday, December 14, against the Los Angeles Chargers. In a second snap, the duo were all smiles at a holiday-themed establishment. Taylor Swift Sits With Kylie Kelce at Chiefs Game After Her 36th Birthday Fans, however, were quick to notice that Swift, 36, could be seen elsewhere in the frame. The pop star rocked her signature red lip as she walked by in the background. Swift and Kelce have been together since 2023, during which the Grammy winner has been a fixture at his football games. She watched Sunday's game from Travis' box alongside both of their mothers, Andrea and Donna, and his brother, Jason Kelce. Swift was also spotted bonding with Jason's wife, Kylie Kelce, and their four daughters. "The girls had not yet seen Uncle Trav play in Arrowhead Stadium," Kylie, 33, said on the Thursday, December 18, episode of her "Not Gonna Lie" podcast. "It was also super exciting to get to see friends and family that were there, because the girls were so excited to get to watch a game with all of them." The game, however, didn't captivate Jason and Kylie's girls: Wyatt, 6, Ellie, 4, Bennett, 2, and Finn, 8 months. Courtesy of Villa Angela-St. Joseph High School Football/ X "They are not that interested in football, to be quite honest with you," Kylie joked on her podcast. "They actually yell at us any time we try to put football on the TV and only get on board after a little while of realizing that they can freely yell. Finnie slept for, like, an hour and a half there, so she's a real one. She actually slept through all the screaming and cheering, which is hilarious to me." Swift started bonding with the Kelce kids long before Sunday's game, often through cats, crafting and baking. "I'm getting my hobbies back," Swift said on Travis and Jason's "New Heights" podcast in August, detailing life after The Eras Tour. "Right now, we're very deep in a sourdough obsession. I've been workshopping [one] for the girls because they love everything rainbow: Funfetti sourdough." She added, "They love sprinkles. We put sprinkles in everything when we hang out." Every Time Taylor Swift Attended an NFL Game to Cheer for Travis Kelce Swift and Travis got engaged later in August after two years of dating. "Taylor is visibly lighter and laughing a lot more," a source exclusively revealed in the latest cover story of Us Weekly. "Travis gives her a fearless playfulness and the confidence to take up space unapologetically." A second insider, meanwhile, told Us that Travis has wholeheartedly allowed his fiancée to be "her real self." "Travis has given Taylor a sense of calm," the second insider told Us. "He supports her in ways that she could have never imagined, and he never expects her to perform or curate a persona around him. That kind of ease has given her permission to be her real self."