Gladys Brewer had an understanding with Coach Barry. The older woman could see the difficulties of being so overweight in a girl's locker room, and allowed her to leave the gym earlier than all the other girls so she could change alone. And so not long after Sarah McMillan left, Gladys found herself surreptitiously opening the door to the locker room and finding her locker.
At first Gladys didn't recognize the panties that she saw flung over her things. They weren't even in her size, let alone anything she'd ever wear: she stuck to plain, full-cut, and white. But as she lifted the tiny lacy black thing between thumb and forefinger, she had second thoughts. Maybe this wasn't something she wore incredibly often, but clearly it was hers. It had been in her locker, after all.
The large girl began to change, and as she pulled the black garment up her legs, now very confident that they belonged to her, she began to change a different way. "As if they were her own," Sarah had said, and how could these panties belong to Gladys if she didn't fit into them? So the moment that the leg holes felt resistance against a roll of fat, the fat disappeared, and then some. The magic worked its way into Gladys, shifting her form not only so that she could technically fit into the garment, but also so that her figure looked natural. Her waist tapered, her tummy tapered, her arms thinned out, her face thinned out, but only just enough to look right alongside the lithe legs that were forming.
Sarah, for her part, felt the opposite happening. She couldn't understand what was going on, but she could feel a bloating sensation as her near-thong bottom expanded to full coverage, and her waistband rose an inch or so, leaving her still black and still frilly, but now a much larger and more modest undergarment: her acquisition from Gladys.
As the girl let go of the waistband, she found herself almost average looking. Not thin, but not overweight. She wouldn't stand out in a crowd, if it wasn't for her bust, which the magic had deemed not necessary for reduction. For a moment, she was amazed at what she saw when she looked down, but that moment passed. Clearly, she had always been like this: how else would she have fit into the panties that she found in her locker?
Gladys was about to pull on a pair of jeans that were now much smaller than they had been when she entered the room, when she was interrupted by the locker room door opening.
