Standing there, I debated what kind of tail I'd like to see on Jenkins' behind. Realising that I didn't care, I thought of the first animal that came to mind - a cat.
I said out loud, "I wish that Jennifer would grow a cat's tail right now," and the moment I said it, her spine seemed to push out from behind her. Almost before I knew it, it lengthened until it was as long as her thin legs, and stopped growing. Jennifer was now endowed with a thin prehensile cat tail, which strangely seemed to be missing fur from it.
I took the tail in my hands and held it, admiring how soft it was. As I did so, I said, "I wish that Jennifer's tail grew fur just like a cat tail." And, bang!, it happened. The fur matched nearly exactly the colour of Jennifer's hair (blonde with streaks of brown). Amazed that I had the power to do this, I stepped back and tried to work out what to do next.