He remembered he had an hourglass that could slowdown magical effects, useful when trying work with certain magical reactions. It might give him enough time to come up with a solution. He reached for it on the shelf, and thought he remembered how to use it, flipping it white side up, red side down.
Meanwhile, Nicole watched Fisk's frantic actions with some interest and amusement, pausing to decide that her devil costume needed to be more revealing, leaving a wide opening at the cleavage, and tightening up around the waist until it formed into a corset, further enhancing her cleavage.
She looked up to see Fisk, now about two thirds of his former mass and with blonde hair hanging down, flip an odd-looking hourglass onto the table. At that moment, there was a brief red flash, and Nicole could see the changes happening very quickly now. Fisk's hair grew out within seconds to match her own shoulder-length hair, his face morphed completely into a copy of Nicole's, and through the now baggy suit Mr. Fisk was wearing, she could see a distinctly feminine figure.