If the whole pop star thing doesn't work out for Taylor Swift (and, uh, that's not likely to happen), she could always be a professional bridesmaid or maid of honor.

On Saturday, Swift took some time off from her busy schedule dominating the charts to attend the wedding of her childhood best friend, Abigail Anderson, and Matt Lucier.

During the reception, the singer shocked guests with a NSFW story about her bestie—the subject of her 2008 Fearless single "Fifteen"—getting it on with Lucier in a lavatory.

"She's running after him, there's falling, there's stumbling," Swift can be heard sharing in a video taken on someone's phone at the wedding.

"They make it to the bathroom and I can hear sounds that I can never un-hear... and then there's silence," she continues, as the bride, groom and entire wedding party laugh hysterically. Watch below:

Taylor Swift and weddings go together like, well, Taylor Swift and Grammy awards: In 2016 alone she left Coachella to attend her backup singer's wedding, and just weeks later she crashed two fans' wedding in New Jersey.

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