As the fur began to sprout across Susan's body, she jumped off the bed. "Jenn! What is wrong with you?!" She hardly wanted a serious change, and it was already apparent this was far more than what she expected. Her feet were growing inside her shoes and her shirt was starting to strain from the enlarging breasts. Susan didn't know which to take care of first, but the decision was made easy when her shoes burst apart and her shirt ripped down the front. Her bra strained to hold in rapidly-growing orbs covered in white fur, and Susan couldn't get her thickening fingers underneath the tight straps to unhook it.
Eventually, the bra gave way as well. Gigantic breasts wobbled freely from Susan's chest, round and furry. Her entire front had become covered in white hair, while the rest of her body grew gray fur with black stripes. Next, she felt a pressure in her pants. Luckily, she was able to get them off without much difficulty. She pulled the waistline down to reveal a growing gray and black-striped tail which ended in a white tip.
Next thing Susan noticed was a pair of nipples that had just formed farther down her chest. The flesh around them quickly inflated and caused a rising sensation of warmth to spread through her chest. Susan gripped the new masses with her hands, which were forming thick paws on the palms and long sharp claws. "Jennifer!" Susan shouted. "This is WAY too far!" The breasts grew to match the enormous size of her first pair, and the four mellon-like growths pushed against each other in their close proximity.
Jennifer, meanwhile, was laughing at Susan's horrified expression. She clutched her stomach in pain because she was laughing so hard. "You look like...ha ha! You look like something...the CAT DRAGGED IN!" At this, she burst into another fit of laughter and fell back onto her bed. She was laughing so hard, and her sides hurt so much, that at first she didn't notice the growth of her own breasts.
Susan's face finally began to change. It already had its striped fur, and now her dirty blond hair was shrinking. It slowly retreated back into her head, but didn't quite go all the way. There were still several inches of it left, and what strands remained darkened to a deep gray with intermitent locks of black. The hair was thick and wild, but its very short length made it look manageable. Her eyes turned to a greenish yellow, while their pupils formed vertical slits. Her ears shifted up her head and enlarged to pointed gray cat ears. Her teeth ached as they sharpened into fangs, and she accidentally bit her tongue. To top off the changes, her feet lengthened and her bones rearranged in her legs to give her the perfect hindquarters of a cat. With her tail darting about in the air, catgirl Susan crossed her arms as best she could with her four enormous breasts in the way and stared at Jennifer, who was gasping for breath. At least she had stopped laughing.
"I hope you're satisfied," Susan said. A faint feline growl accented her words.
Jen sat up on the bed. "Oh, yes. Very!" She eyed every bit of her almost-naked friend. The only clothing left on Susan was her undies, but the fur seemed to be enough body cover to hide even her private region without them.
Now Susan noticed something different about Jennifer. "Say, I think that last insult you gave me had a effect on you," she smirked, happy to draw attention back to the source of her current predicament. Jennifer followed susan's pointed claw to her own chest and realized that her bra was straining to hold in enlarged mammaries.
"Oh shit!" she yelled. She felt the grown breasts and sighed deeply. "Why did you have to look so absurd when you were changing? Maybe I shouldn't have turned you into a catgirl freak after all." Another feeling, this time in her feet, made Jennifer regret those words. "No way!"
This time it was Susan's turn to laugh as Jennifer struggled to untie her shoes before they broke apart. When they were off, her growing hooves had already torn through her socks. Her feet lengthened between the hooves and ankles, making very convincing cow legs. Jennifer also noticed her hands were changing as well. The fingers fused together--pinky with ring and middle with index--to form two thick digits with hard black nails. Her thumbs looked thicker, too, and had the same nail color as her fingers.
"Okay, I think it's time to fix this," Jennifer said. "Give the curse back to me."
"Oh, I sure will...," Susan said in a threatening voice. "Transform or Dare?"