Fic about Nationals

Hi, it's the first time I write in here, so I really hope I don't mess up with the tags! I'm looking for a fic I read ages ago. I remember, it was set during Nationals in New York. They are at the hotel and Will Schuester sees Kurt getting into a car, so he follows him. They ends up in Blaine's brother's apartment. I think it was because Kurt didn't want to room with the guys or something. I remember Will fights Blaine's brother thinking he's a pervert trying to take advantage of Kurt, so they call Burt and he roots for Cooper.

Thank you so much!