Amy discovered her powers much by accident one day at work. After a restless night's sleep, followed by a very hazy morning, she was quite disgruntled by the time she got to work at the library. Not at all in the mood for Mae's cheerful squeakings.
"Oh, hello Amy! Nice day, isn't it!" said the ever-cheerful college student.
"I'm not in the mood, Mae." replied Amy.
Mae was persistent, however.
"Amy, lighten up! It's a great day, the sun is shining, just look at the light streaming in from the windows!"
It didn't help Amy's mood much that Mae had a full three cup size advantage over Amy and frequently stole whatever chance Amy had with any patrons. There were several guys around that looked decent today, but Amy knew that she definitely had no chance, not with her mood. Even now they were surreptitiously sneaking glances in Mae's direction.
Amy wasn't quite sure how Mae even stood, since she looked so imbalanced. She was a G up front, but without hardly anything in back, nor anywhere else. She had, pretty much, a prepubescent girl's body with the one exception.
Amy was far better balanced, with enough padding front and back to guarantee stability, just the way nature intended.
Mae could stand to gain some weight, especially in back. Maybe ten, twenty pounds, and she'd look more natural...
"Amy, are you even listening to me? Ah well, you're much happier when you daydream- oh wow! What was that?"
Mae looked back to see that she had gained additional junk in her trunk, as Amy looked on in surprise. The Mae that now faced her looked exactly like what she pictured in her mind!
Needless to say, Amy was quite confused, though not as flustered as Mae, who spent the next few minutes being assisted by the same guys who had been eying her earlier. As Amy had thought, the modification made Mae look more natural and attractive (the last much to Amy's annoyance), and even guys who hadn't been eying Mae before began to do so.
After work that night, Amy pondered the causes of Mae's transformation. After a bit of experimentation, she found that she was the cause, and she could modify herself as well as others! Her wardrobe for the day did not survive the experiments, but that was not a big deal. What WAS a big deal, was how much weight she put on just by thinking!
Starting with the simplest addition she could think of, Amy grew seven cup sizes in the blink of an eye, becoming newly re-endowed in a shower of shredded shirt and underwear. Somewhat giddy with power, she went on to expand in every direction, shredding pants, belt, underwear and all to become the centerpiece of her apartment, a full ton heavier and infinitely more soft and lovely.
Peering over her huge breasts resting on her belly at the TV she had had on when she began her experiment, she caught sight of a fashion show. Each and every one of the models looked unnaturally thin and unhappily so. Amy knew what she had to do. For them, for the world.
Withdrawing her lovely bulk back into a more mobile form, Amy...