Her seams blow. All of them.

It was the deep breath that probably did it. One second Sandry was standing in front of the class in a complete, if rather tight, uniform, and the next -

RRRRRIIIPPP!!!

It wasn't just one ripping sound, but rather several all occurring at the same time. Her skirt split open, both left and right, the rips racing up to the waist and down to the hem. At the same time her blouse was splitting apart under the strain, buttons flying from the front but not preventing the sides from giving up and tearing long and wide, while her sleeves tore at the shoulders and started sliding down her arms.

It was all over in a few seconds, then strips of dark grey and white material floated to the floor and scattered around Sandry's feet.

The buxom brunette girl realised she was in a waking nightmare, stood in front of the entire class in her light pink heart-pattern panties, a white lacy bra, white ankle socks, black shoes, and her striped school tie.

"I... I..." she struggled to say anything, and found she was frozen in place, paralysed by overwhelming humiliation.

"Sandry!" Miss Lane finally exclaimed, putting on anger which could not quite disguise her enjoyment of the curvy girl's suddenly exposed body, "What is the meaning of this?!"