Aidan makes a sharp noise, three hundred percent indignation that she'd even consider the possibility that he didn't know how to waltz. "Come on, seriously? What do you take me for?"

Besides, it's a three beat dance. You don't get more basic than that. Aidan shifts his catch on her arm, sliding his own free for a half moment of drifting before he tangles their fingers together. He catches his other hand high on her side, slightly above her waist.

"Sorry, I don't have any decent backing music on me."

Doesn't stop him from taking a moment and then nudging them slightly off the ceiling with a dig of his heel that should - if his calculations are right - send them spinning in some approximation of dancing.