"... you'll slowly turn into a werewolf girl! I can guess what you're thinking, 'don't werewolves turn when there's a full moon?'... And that's the thing, while each lie will slowly edge you closer to a permanent wolf girl look, on each full moon you will go into heat; in fact a heat so intense you will do anything in order to mate, until you pass out. During that time you will be twice as strong as you'd usually be, and if at that point your body permits you'll also try mating other women."
"What a weirdo... What are you, a furry?"
"Well, thanks for asking, but no. Your transformation will give you animalistic features, but you will not turn into an anthro, so no muzzle or anything like that, although you might gain fur and animal parts in some places. Also, not all your transformations will necessarily be inherently animalistic, just to spice things up a little. The number of transformations you will go through will be random, the limit is reached when I'd feel like my revenge is fulfilled. I'll leave that up to the curse to judge, it knows better than me. Everyone except for you and me will think that you've always looked that way, though depending on how much you lie and what changes you go through, people might ostracize you."
("When will he shut up?")
"As for your dare, I feel I've got most of the things I wanted to do covered, but in any case, you will not be able to take revenge on me for this, nor will you be able to reverse the curse or any of its consequences. I'll leave you free to use it in any other capacity though."
"Are you finally done you freak? I'd had enough of your fanfiction!"
"Sure am- I can't wait to see what you look like by the end of school today!"
With that, unaware that she was forced to listen because of the curse, Jen slammed the phone down and continued to prepare for school... and unknowingly the full moon that would come up in 10 days.