Dawn had little trouble deciding on her first victim. She was sitting at the table eating breakfast before school when her sister walked into the room. Actually "walked" was the wrong word. It was more like a strut, with her chest pushed outwards, her hips swinging. She wore a strapless blue sun dress that clung to every inch of her.
"hey Dawn." she said, walking by and grabbing a diet shake out of the fridge. "how's it going?"
"Fine" Dawn said bitterly, looking down at her cereal.
"You have a date for the dance yet?"
"I'm not going to the dance" Dawn said fiercely. "It's stupid."
"I'll take that as a no" Marie chuckled. "Maybe boys would be more interested if you showed a little more skin. Then again, what's there to show?" She cast her gaze down towards Dawn's chest. Self consciously Dawn crossed her arms over herself, a blush spreading across her pale face. She eyed Marie's bust. Marie's chest had tripled in size in the last two years, and she certainly wasn't shy to show off her DD's. Even now generous cleavage poured from her top, impossible to ignore. Dawn, on the other hand still had the same tiny mounds she had since she was twelve. "Mosquito bites" was her sisters favorite nickname for her.
"Whatever skank!" Dawn muttered angrily.
"Hey, if you've got it flaunt it! I've got it, so I'm gonna flaunt it! you stick to your baggy sweaters though, don't want anyone mistaking you for a 6th grader!" She laughed, leaving the kitchen. "I'll see you at school!"
So now Dawn had a target. She rushed up to her room, grabbing the spell book and the things she'd need. Then she rushed down the street just in time to catch the bus.
The day passed slowly for Dawn. She waited excitedly for Spanish, the class her and her sister shared. She knew Marie had to give a presentation today. If everything went right she'd be "presenting" a lot more then she bargained for. She took her seat in the back of class. She watched Marie enter with her usual gaggle of friends, all laughing and talking amongst each other. Marie glanced at Dawn, but didn't acknowledge her besides a quick scowl. It had become obvious years earlier that Marie thought of Dawn as an embarrassment, and refused to interact with her in public.
The teacher walked in, and things settled down. She took role, then everyone began doing their presentations. Dawn ignored everyone and began reading from her spell book. She read over the spell she had planned, practicing pronouncing the strange words required under her breath.
Finally, Marie was called up. She walked up, allowing her curvaceous backside to wriggle as she walked. All eyes focused on her as she began reading in rather bad Spanish. Dawn could see the boys lustfully stare at her sisters chest. Ignoring them she looked down at the book. The "reduction" spell she had planned was quite simple. She simply had to repeat a chant and focus on whatever she had planned to reduce. She closed her eyes, whispering and focusing.
Marie read on. She paused from time to time to look up at the room. She revealed in the attention, the eyes on her. She even noticed Mr. Humpers, the teacher checking her out! She continued with her stupid assignment. Suddenly she felt a strange tinkle in her chest. Almost an itch. After a moment it faded and she read on. Then it came back. Annoyed Marie used one hand to scratch at her right breast.
Dawn watched excitedly. She could feel the spell working and continued chanting. She noticed her sister scratch her chest and stared intently. Then the effects slowly became noticeable. Marie's cleavage began to decrease subtly, her vast orbs ceasing to press together. Her nipples had been clear beneath the dress, but now seemed to be receding. Her dress, supported by elastic around her chest seemed to slide downwards slightly.
Dawn couldn't believe it was working! Before her eyes her sister had changed from a DD to a C, with no sign of the descent stopping! Marie seemed to know something was wrong. The strange tingle wouldn't stop! She scratched again, but noticed something. Her hand had to travel too far to reach her chest. she looked down at her body in confusion. She didn't see the sight she normally saw though. To her shock her chest was less then a quarter the size it normally was!
"Is something wrong Marie?" her teacher asked. She turned her head towards him, realizing she had stopped mid sentence. She was trying to think of something to say when the moment Dawn had been waiting eagerly for occurred.
Her dress fell to the ground, no longer supported by her bust.
Everything in the class stopped. Marie looked to the class, to the staring faces of thirty of her peers. Then she looked down. Her dress lay piled around her feet! All that she had on was her black thong and high heels! And, even stranger and more embarrassing, her chest was completely flat! Large pink nipples rose off of a flat as a board torso. Her hour glass figure and long toned legs seemed to accent the flatness of her chest.
"OH MY GOD!" She screamed. The class burst into laughter, Dawn laughing hardest of all.
"Look at her!"
"She's totally flat!" people yelled out.
Marie screeched. Her hands shot over chest, each one covering a nipple. It did no good though: everything had already been seen.
"Don't look at me!" She screamed. Of course this didn't stop anyone.
"I knew they were too good to be true!"
"she must have been stuffing her shirt!"
"I was not!" Marie yelled out, sounding even sillier then she looked.
"my eight year old sister's got bigger tits!"
Marie couldn't stand the horrible remarks. She bent and grabbed her dress, holding it to her chest. Then she turn and ran towards the door. Her large backside quivered and shook as she ran, concealed only by a tiny triangle of fabric and a string.
"Baby's got back!" Someone yelled.
"guess that's all she got!" Was the last thing Marie heard as she rushed to the bathroom.
Finally the teacher resorted order. Dawn asked to be excused and left towards the nearest bathroom. She knew Marie would be there and sure enough found her hiding in a stall. The girl sat on a toilet, still in nothing but her thong.
"Marie?" Dawn asked as she opened the door. Marie looked up, her makeup streaked down her face from tears. "why haven't you gotten dressed?"
"Look!" she held up her dress. It was only about a foot long. It would barely fit a doll, much less Marie! This was, of course, more of Dawn's doing.
"I don't know what's happening!!" Marie yelled. "first my tits and now this!"
"well, maybe you should've worn a bra." Dawn suggested.
"Dawn, you gotta help me!" Marie whined. "I need something to wear!"
"well, I have something I picked up from work, but..."
"just give it to me!" Marie interrupted, extending a hand.
"alright..." Dawn said. She reached into her backpack and pulled out the clothes which she had brought especially for this occasion.
"Dawn! what are those?" Marie yelled.
"it's some clothes, what?" Dawn said. She had picked it up from the adult section of her store, but never had the courage to wear it, not even under her clothes. The top basically of was two triangle of fabric on a string. Enough to cover someone's nipples and nothing else. The bottoms were a black mini skirt, one which would barely cover Marie's backside.
"I'm not wearing those! not like this!" Marie yelled.
"Well it's all i have." Dawn replied. "you can wear them through your next class, then try to go to the gym and get your P.E. clothes at lunch."
Reluctantly Marie excepted. She pulled on the skirt, but had trouble getting it over her butt. Once it was around her waist the round edges of her butt still peaked out. Then she pulled on the top.
"why is it so loose?" Marie asked. The fabric triangles wouldn't stay in place, they kept sliding off her nipples.
"Well, I got in my size." Dawn explained. "It's made for someone with a little bit more to fill it out." Marie looked down at Dawn and her own reflection. She realized that now, whatever had happened, her sister had larger boobs! The same girl that she had constantly mocked for her lack of her development had just mocked Marie's own chest! Marie flushed red and adverted her eyes. Dawn reveled in her sister's humiliation. Normally her sister wouldn't have even been that embarrassed about her tits being seen. In fact she probably would've bragged about it later. But now that confidence was gone. Now she blushed and cringed, struggling to conceal herself.
A bell tolled. That meant they had ten minutes to get to class. They left the bathroom, Marie with a great deal of reluctance. She looked so ridiculous! Normally she would've loved this sexy outfit. Now it just made her look ridiculous. She tugged down at the skirt, shuffling her feet. All around her people yelled out cat calls. She tugged down at the skirt in the back, but that simply revealed more of her panties in the back. Every now and then she looked down and the top had moved, revealing her erect nipples. She would throw it back in place only to have her skirt flare up again.
"Wow, look at that girl!" a boy said pointing.
"dude, i just saw her tits!"
"really? i thought they were just freckles!"
Marie cringed. Her face was bright red. A chant of "tiny tits" started. someone pinched her exposed backside. Finally she covered her face and bolted to her classroom.
Dawn didn't see Marie for the rest of the day, but found out the facts later. Marie had tried to be excused to get her clothes, but the teacher instead sent her to the principals office for disrupting class. There she had received a lecture on school dress code, all the while cringing and trying to cover herself. Eventually her parents came to pick her up at the end of the day. Dawn got a ride as well, sitting in the back next to her nearly naked sister as her parents lectured.
"I can't believe you!" Her father yelled, looking back at Marie. "Prancing around school like a stripper!"
"my dress was ruined!" Marie whimpered.
"Oh, that's right, it didn't fit anymore. Probably because you lost all the padding you've been using to stuff your shirts!" her mother accused.
"Mom! I don't stuff my shirt!"
"right, so I'm supposed to believe you went from DD to an A cup in one day? Not on your life missy! i know you've been trying to look more mature, but now everyone's seen your body for what it really is!" Marie crossed her arms over her unfeminine chest and pouted.
Marie ended up getting grounded for a month. She had learned her lesson though, and stopped ragging on her sister. Maybe it was because she had heard the same degrading remarks she used to make at Dawn. Dawn revelled in her sister's defeat. Still, it was her sister. She decided she would restore Marie's chest to it's normal size... eventually.