She might not make it out the door if she attempted to wear the costume she was wearing now; not before Balthazar tried to take it off her again, anyway.
He gasped as well when she broke the kiss, blinking his eyes open to gaze at her through half closed eyes, dark with need. His eyes closed again as her lips found his neck and he groaned quietly, letting his hands explore her body. There were brief moments of amusement when her costume made noise, but he didn't think he could come up with anything coherent enough to be considered clever.
Settling his hands on her ass, he gripped gently as he took a step and then another back towards the bed. That seemed like the most important place to be at the moment.
"I need to see your costume from another angle ... or perhaps see how it looks on the floor," he decided in a thick voice.