Taylor Swift and Travis Kelce 'Let Loose' at Chiefs Afterparty: 'A Good Time Was Definitely Had' (Source)

The superstar couple headed to Prime Social in Kansas City to celebrate with his teammates, a source confirms to PEOPLE

All Travis Kelce and Taylor Swift do is win, win, win.

Following the tight end's season-opener game at Arrowhead Stadium where the Chiefs won 27-20, the superstar couple headed to Prime Social with several of Kelce's teammates for an after party.

"Everyone partied hard. A good time was definitely had," says an insider. "Travis and Taylor both let loose."

Fans have been anticipating Swift's return to Kansas City following her budding romance with Kelce last season (she attended 13 games), which was capped off by the athlete's Super Bowl win in February.

During the game, Swift was seen mingling in Kelce's suite with his dad Ed and sharing a hug with mom Donna. "I am feeling fantastic!" the pop star said in an Instagram Story video posted by Chariah Gordon, who's engaged to Chiefs wide receiver Mecole Hardman Jr.

Related: Taylor Swift Supports Boyfriend Travis Kelce at Chiefs' Season-Opener in Kansas City: 'How Are You Guys?'

During the off season, Kelce, 34, became a staple at his girlfriend's Eras Tour shows across Europe. At one of her sold-out Wembley Stadium shows in London, he even shocked fans with a surprise appearance onstage.

Earlier on Thursday, the singer, also 34, made a splash when she arrived dressed in a sexy Versace denim bustier, shorts and thigh-high red boots.

"Hello... how are you guys?" she greeted fans as she walked into the stadium.

Kelce's teammate, Chiefs quarterback Patrick Mahomes, previously opened up about the impact Swift has made on the team.

Related: Travis Kelce Says He Doesn't Mind Being Taylor Swift's Arm Candy: 'It's the Life I Chose'

"She's really interested in football. She asks a lot of great questions. She's already drawing up plays so we might have to put one on," the Super Bowl 2024 MVP told NFL on NBC.

Kelce underscored his appreciation for Swift during an appearance on the Rich Eisen Show earlier this week, saying Swift has been "so open" to learning about his sport.

"I know none of the plays have gotten to Coach Reid yet, but if they ever do I'll make sure everyone knows it was her creation," he said.

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