Sarah woke up in the morning and immediately noticed that the uncomfortable weight of her belly was gone. She leapt out of bed and looked at herself in the mirror. She grinned as she saw her body restored to its previous condition, beautiful in its naked glory. She ran her hands down her soft, flat belly and wondered what kind of weird hypnosis Karyn had used to make her think that something had happened to her yesterday.
Never mind, she thought to herself, there will be plenty of time to get revenge on the little bitch later today.
Sarah dressed in sexy, lacy red bra and panties, with tight jeans and a cute button-up blouse. She wanted to show off her body a little bit today, so she left the top couple of buttons undone. That would give the boys a peek at her cleavage and help them maintain their interest.
Sarah went to school. She had hardly reached her locker when Fat Kim came up to her. Kim used to be one of the cool kids, but had some kind of nervous breakdown about a year ago, when she became withdrawn and started to gain weight. To be honest, she wasn't really that fat, just pleasantly chubby, but as a former rival Sarah wasn't going to let any weakness slide. Sarah had made sure that every girl in school was calling her "Fat Kim" to make sure that she kept out of the way.
Sarah put on her best fake smile and said "Oh, hi, Kimmy! How's it going? Oh, have you been working out? You look like you're getting your old figure back a bit..."
Kim rolled her eyes and said "Nice try, Sarah, but the fake nice bullshit won't work with me."
Sarah was about to protest, but Kim continued. "I know that you're the one behind that stupid 'Fat Kim' thing that's been going around the school. And, yeah, I've put on a bit of weight. Thanks for pointing it out, really, otherwise I might have missed it."
Sarah frowned. "Kimmy, I..."
Kim cut her off again. "No, fuck you, Sarah. I have an opportunity to return the favour, so here goes. You're going to start getting fatter. Every time you hear someone comment on your weight, you're going to gain a little more. You're not going to leave school or miss any classes until after your cheerleader practice at the end of the day, so good luck with finding clothes that fit. We'll see how you enjoy having everyone point out your weight problems."
And with that, Kim spun on her heel and walked away. Sarah felt a strange tingle across her body, and noticed her clothes getting tight. Then they started pinching, and feeling uncomfortable. Then she felt the button of her jeans pop open. She looked down at herself and screamed.
