You and Chuuya were at this costume party your boss Mori made you go to. Chuuya was dressed as a cowboy and you were dressed as a prince/princess

You were sitting around drinking wine when Chuuya came up behind you and put his hat on your head, then he leaned down and whispered in your ear

“Do you know the hat rule, my darling?”

He asked with a smirk, but you raised an eyebrow, not sure what he meant