"How about d-" Jennifer began.
"Too late! You get both!" exclaimed Kyle with joy.
"Fine, I'll play your little game you freak. It's not like it's real anyways."
"That's what you think....I know that you often tell lies, and most of the time, people believe them. Because of this huge opportunity, Jennifer, for your transformation, every time you tell a lie....
...part of your body will become that of an animal. And it will remain that way permanently, so slowly but surely you will become a monster. The transformation will also eventually partially affect your mind, you will gain animal instincts, but don't worry you will retain much of your human mind, just enough to be horrified in what you are doing, but not enough to control your instincts. Hope you enjoy eating, living, and shitting like an animal. Which reminds me your animal digestive system will function just like any other animals and you won't be able to control when you go to the bathroom. Also immediately after your final transformation you will find an animal that shares your genitalia and have sex with it, which will make you pregnant so you will reproduce more of your kind. For your dare, everyone will NOT find this normal, so eventually you will probably have to find a cave or something to live in, and finally I dare you to forget this conversation and hang up the phone."
'Huh. That was weird. I guess they had the wrong number.' she thought
to herself as she hung up the phone, and continued the search for her
missing clothes...