Rose/Michael
The redhead (Abby, Annie, something like that; he knew the way her hips moved better than her name) pouted and turned to grind against someone else, but Michael didn't pay much attention. He was torn between laughter and wondering who else was in on the joke. The Rose he was familiar with didn't wear short dresses and hang out in clubs, particularly Muggle ones. If he pictured her dressing up at all it would be to some kind of high tea... event... thing. Not that he had any idea what those involved. Besides tea.
Nah. He'd go with this being funny. Michael felt a fleeting moment of regret that he was no longer some anonymous bloke in a blue button-down and jeans and was instead Michael Corner, with all the baggage that implied, but mostly he had no reason to be embarrassed. He grinned at her, maneuvering through the crowd so he didn't have to shout quite so loudly. "That's the point of coming here, yeah. You do this often? Please tell me you do this a lot."