It was about halfway through the convention when Brittany noticed Kate surrounded by a gaggle of nervous boys. To be honest she wasn't surprised, in fact she was glad as it meant she didn't have to sneak around later. As usual Kate was dressed to show off her body. Although this time she was conservative with her lower half, only wearing skin tight jeans to show off her ass, her upper half was another matter. The tank top itself was fine in itself to Brittany, it was it's size that was the problem, about two sizes too small. it's skin tight hug had the effect of making Kate's already large volleyball-sized breasts seem larger, showing off quite a bit of cleavage in the process. Brittany couldn't help but pity some of the guys, may of them having already came inside their pant's from being so close to Kate. But after tonight that'll all change,' Brittany smirked to herself, striding over to Kate. It had taken her months to weed her way into Kate's group, managing to use her smarts to fool Kate into believing that she was doing her science work in exchange for being seen with her, but Brittany's plan was much better.
"Hey Kate," she slightly yelled to get the girl's attention. It took Kate a few moments to weave her way between the throng of boys around her before she made it to Brittany. "What is it?", she asked, slightly annoyed at having been taken away from her adoring 'fans' "I've got a gift for you," replied Brittany, handing Kate a small box. This caused Kate to immediatly perk up, as she loved getting gifts. Opening the box, Kate gave a puzzled expression. Inside was a machine, about the size of a small plate, with a little switch on top. 'What is it?", asked the clearly confused Kate, much to Brittany's relief. Lying smoothly, Brittany replied that it was a 'back massager', as she thought that having such large 'endowments' would cause Kate to experience slight pain. With her slight confusion solved, Kate went back to her normal prideful self, exclaiming that "the slight pain was nothing compared to her impressive size," which she emphasized by squeezing her breasts together, "but she was thankful for the relief,' walking away to find another throng of boys to tease. "Don't forget to turn it on and put it under your bed tonight" replied Brittany, keeping the fake smile on her face until Kate was out of sight. When she was, Brittany let out a sigh of relief, and then smirked to herself "let the fun begin."
It was 10:00pm when Kate went to bed, and she was still boastful by herself. For the past 15 minutes, She had posed in front of the mirror, talking to herself about how hot she was, paying particular praise to her large breasts. When shed finnaly did go to bed, Brittany had made sure that Kate had turned on the machine and placed it under her bed. Satisfied, Brittany slinked back to her apartment, thinking of the machine she had just given Kate.
She had name it a Switcher, after the results she had seen in her small scale tests. It had originally been to copy cells, revolutionising medicine by copying healthy genes into less healthy. She had tested it on two rats, trying to get a white one to grow a tail from the black one. However it didn't quite work. The tail-less rat had grown a tail, where as the other's had shrunken and disappeared. When she tried to show her partner, he had dismissed her, saying the white one had always had a tail. Apparently the little machine also distorted reality, causing people to believe that the changes had always been like that. It had been a week later when she had decided to use it on Kate. She was tired of all the girls with half a brain, but who had bodies to die for getting guys, where as girls like her, who had great personalities but, no curves to speak of got none. "Well, it was time for that to chang." She thought opening her door.
She walked over to her bed, changed into her pyjama bottoms (foregoing a top) and layed down on her bed, grabbing a near identical machine to the one she had given Kate. Where as Kate's had had only an on/off switch, Brittany's had a small dial as well with two settings, them being slight and full drain. Quickly deciding, she turned it to full drain, placed it under her bed, and waited. It took 10 minutes before it started to happen. It started with a slight tingle in her breasts, which were no more than bee sting sized, or they had been. Slowly but surely, her breasts were growing. It was mesmerising, watching her breasts fill out getting further and further from her chest by the minute. She could feel her once non-existent ass becoming rounder and firmer. But she forgoed her ass for the minute, instead watching the spectacle that was her breasts. they were a large Bcup now, growing larger and more sensitive. She pushed her hands up against them and was ecstatic at the feeling of them pushing her hands out of the way. Slowly but surely it was working.
Back at Kate's was another matter, as the sleeping girl's body was slowly being drained away. Her once large and firm ass was dwindling away to nothing, and it appeared she was now an inch shorter. Her precious twins, tits that once could rival volley balls, were now shrinking, soon to disappear altogether, leaving Kate's body with no curves at all.
It was an hour later that the draining completed. Brittany awoke from a short nap to ind her once washboard-flat chest, now sporting DD breasts, as well as her non existent ass having filled out into a large sensual thing. Looking into her mirror, Brittany grinned. Today would be fun.