Remus / Sirius
"Please," Sirius said with a smile that said he knew that Remus was very much downplaying his own talents -- they might not have been utterly practiced, but it wasn't as if Remus was lacking in rhythm and it wasn't like Sirius didn't often throw impromptu in their house dance parties.
He was perfectly good at it. Sirius just happened to be a lot (lot) more willing to show off.
Not that it mattered. Fun was the point and there was seriously nothing more fun than what they were doing just this second. Dancing like they were a little bit mad, but so clearly together.
"Yeah. I think you can check it off the list," he decided.