Transform him?

"Do you know what a transformation fetish is?"

James nodded nervously at the question he had heard of such a thing online but never believed it could actually happen to him. But since he had already been made to strip naked for this person perhaps he could be physically changed too?

"I am going to use this curse of yours to explore mine. I may transform you fully or only partly, or maybe I will make you humiliate yourself by acting like an animal, maybe even in public while you remain naked. Whatever happens I will allow you to keep your human mind like normal. It will be fun to know that you are experiencing all of your changes with your normal mind!. Now, where to start? I suppose there is no rush since I have enough money to make this last all day"

James could only hope this wouldn't work.

"Oh, this is going to be so much fun!" James could hear Rebecca laugh "I think I might give your favourite client a discount to keep this going!"