You feel a rumbling noise coming from deep inside your belly. Pressure starts to form in your gut. It feels like something is welling up in there. The pressure travels up your throat and you gag. You spew black ink all over you bathroom mirror. The ink splatters and dribbles start to form words:
You have always loved cats.
You dote over them constantly
Sincerely, I am sick of it.
Every time you come into the library, you check out every book on cats you can.
I decided to end your awful doting for good.
I called up my witch friend and she bewitched the book.
Now you can be a cat.
Enjoy your new life!
-Your librarian.
You stare at the words in disbelief. What did you ever do to your librarian?
One of the ink drops drips off the mirror and lands on your toes. The letters change again.
LET US BEGIN.
You look down at your foot. You watch as your toes merge into three different digits. You think drunkenly, this can't be happening.
You feel your foot begin to extend as your thighs shorten. Your heels merge with your lower thighs, causing you to tumble to the floor. You see your thighs begin to swell, causing your pants to become tight. You furiously unbutton your jeans and manage to just get them off before your pants rip. Your thighs become thick and muscled, suited for jumping to high places. You feel a burning sensation in your groin, and you look down to see what is going on. You watch in horror as your member is pulled inside. No, it can't be...
You yell when you feel something poking in your underwear. You see a tail push it's way out of your butt and grow to about the length of your body. You flick it around with amazement. Then your butt begins to swell, widening and thickening with muscle until your underwear is pushed to them snapping, falling and getting caught on your back paws. Your hips widen and your tail grows a little longer. Then you look down see a membrane of skin growing on your thighs, connecting them to your lower stomach. Then your stomach pushes out, rounding out into a cat belly. You see four teats grow on either side of your belly. Yup, you're female all right.
Your torso shrinks by about a foot, and you realize your groin feels hot. You look down and see a thick patch of white fur where your pubic hair should be. It rapidly grows down your bulging thighs and up your stomach. The fur engulfs you completely, and it feels even hotter in here now than it did a while ago. The fur grows itself into a thick, fluffy coat that engulfs your whole body. You look down at your hands and see them shortening, merging into three digits like your toes. Then your arms and legs shorten to the exact same length. You look yourself over, lying on the floor. From the chest down, you're an ordinary house cat, just the size of a human.
That would soon change. Your shoulders are drawn into your body and your neck thickens and shortens a bit. You get up on your four paws and look down to see your front legs and your fur-covered chest. Then you feel your ears stretch and move to the top of your head. Your face feels tremendous pressure and your mouth and nose form into one thing, pushing out into a cat snout. Whiskers grow out of your cheeks as your face is engulfed in fur.
Now you feel like someone is squeezing you in a vise grip. You purr (purr? you can't talk anymore!) as the pressure seems to push on you from all directions. You watch as the bathroom counter gets taller and taller and the celling gets farther and farther away. Finally, the pressure stops all at once. You get up on your haunches and wrap your thick, fluffy tail around your thighs as you leap up at a tremendous speed to your bathroom counter.
You stare at the cat in the mirror. You are no longer indistinguishable from a normal white house cat.