"You must change into an animal form before continuing."
"Can I change back later?"
"Oh, sure"
After thinking for about ten minutes, you decide.
"I would like to become an anthro fox please."
"Okey dokey"
He starts shooting something out of his hands. it looks like some kind of laser. At first it is blue, but after you are an anthro fox, it doesn't stop, it changes to pink!!!
You feel it going through-out your body, rewriting your DNA. You feel a pressure on your dick. You look down to see it shrink into nothing. Then, you feel pressure on a spots on your stomach!!! You look down to see your fears confirmed by eight nipples. Your transformation into a vixen is finished!!!
You go up to the elf. "What the hell did you turn me into a girl for!?!?" You ask in a high pitch.
The elf responds "You simply said anthro fox, you did not specify any gender!"