When Rarity went to take a step, however, she glanced back. Her eyes widened with alarm. All at once, it dawned on her.
 
Good heavens! she cried as she recoiled in horror. Wha-what is this?!
 
The unicorns eyes frantically swept over the heavy swell of her middle, and the violet hue that now darkened her coat. Fluttershy could see it inching down her legs and up her neck, practically swirling under her skin like a dye in water. The slightest hint of purple bloomed on Raritys cheeks, as if she were blushing. Her breast dimpled as she lifted a foreleg in shock, while her engorged flanks begin to bite into her ballooning belly. All the while, her backside mounted ever higher.
 
Her body appeared turgid, attempting to resist the constant expansion, but as Rarity fidgeted in her panic, Fluttershy noticed the slightest slosh and sway. It was a bit hypnotizing to watch, but Raritys voice pulled the pegasus out of her trance.
 
Fluttershy, she whimpered, whats happening to me?!