Kodachi bent down and picked up the curious vial that bounced out of the van with the unsecured door. It was a clear sort of fluid that, as she opened it up briefly, lacked any sort of smell. Strangely, she noted that the fluid evaporated quickly as soon as it was exposed to the air, and she frowned when a sneeze suddenly worked out of her nose.

Shrugging, she slipped the vial into a pocket and continued on to the St. Hebereke gymnasium for the practice after school. It wasn't long before she was in her leotard and admiring her slim, beautiful figure in the mirror. Hers was an elegantly sublime form with sleek, straight black hair and pale alabaster skin.

And freckles.

She frowned and leaned forward to examine the sudden and anomalous appearance of tiny dots on her cheeks and shoulders. There weren't many, barely noticeable in fact, and Kodachi excused herself for having almost missed them. She'd have to see about going to a doctor and having the blemishes removed with a laser. Freckles weren't the sort of thing that were appropriate to the standard of beauty she was hoping for.

Nodding at that decision, she turned about walked out of the changing room into the gym to start her practice for the day. All about, the girls of the St. Hebereke Rhythmic Gymnastics team sprung into action. Kodachi frowned at the lack of discipline, how did these girls expect to perform if they only ever practiced when either she or the coach was there to watch them.

Of course, it never occurred to Kodachi that they didn't practice because they knew that there was only a slim chance in hell that any of them would ever get to actually compete given how many of their competitions ended with the other team forfeiting.

Kodachi began stretching and frowned as the leotard stretched tight against her with each motion. It was even getting hard to breathe, and then the spandex started pulling tight over her hips as she started doing more vigorous exercises.

Looking down, Kodachi's mouth twitched as she saw that the lower part of her one piece looked like some sort of thong, while the top was straining to hold against her chest.

"Some malcontent has tampered with my gear," she said firmly. "Someone is going to have to pay for this."

Twisting about on her heels, she moved back to the locker room. If this was what would pass for behavior today, then she would just as well leave. Quite clearly, she needed to buy a new leotard anyway. She scratched at her forehead bitterly as she walked out of the gym, to the confusion of the other girls.

Getting out of the leotard proved to be something of a challenge. First, her chest was released as she peeled it off, coming away from her with a sticky sort of sound. She paused to take a breath and blinked as she looked down at her breasts.

Kodachi could have sworn they were bigger, maybe B-cups now. She supposed that was possible, that she'd gone through some sort of growth spurt recently and that her clothing problems had nothing to do with an ill-conceived practical joke. Strangely the idea didn't seem to bother her as much as it probably should have.

It looked like she was going to be doomed to something closer to that foreigner's ridiculous proportions. In fact, even the areola and nipples looked like they'd been swollen to a degree. She poked one curiously and shivered at the sensation.

Looking about curiously, she brought both hands up to her chest and started, slowly at first, rubbing her chest. The sensation was glorious and surprised gasps and moans worked out of her with each slow caress.

"Captain?" a voice asked, and Kodachi's skin reddened as she pulled her hands behind her back.

Hurriedly, she worked at finishing the task of removing her leotard, yelping in an entirely not-pleased fashion as she forcibly pulled the mass of spandex out of her ass. One of the other gymnasts came around as that occurred and watched as Kodachi rubbed her rear end and grumbled.

"Fuckin'…" Kodachi muttered, bring a red look to the new witness's face.

"Captain Kuno," she gasped. "I have never heard you use such language."

"Yes, but that damn well hurt!" Kodachi snapped, dropping her usual haughty manner without realizing it.

The girl reached down to her normal clothes and grabbed her panties before pulling them up over her legs. She was reaching her hips when the fabric of the black panties started to stretch wide until the snapped against Kodachi's attempts to slip them one. Lifting them up, Kodachi stared at the panties and blinked in confusion.

"The hell?" she asked and cautiously set the underwear down before picking up a bra. "No one's been messing with my things have they?"

"No, Captain Kuno," the gymnast said, moving closer as she stared at Kodachi's bare chest.

Kodachi reached up to scratch her forehead and frowned as she found something hard hidden in the mass of her hair, but dismissed it in favor of other concerns.

"What are you looking at?" Kodachi asked. "Do you think if you squeeze them you might get some milk or something?"

"Err, sorry, Captain Kuno," the girl said. "They're just so much bigger, I thought you had an A-cup like me."

"I am an A-Cup," Kodachi protested. "Well, maybe a B-Cup, I appear to have gone through a growth spurt or some such."

She pulled up her bra and tried to slip it on. Kodachi and the other gymnast blinked as the normally supporting spread of cloth seemed to cover an area of Kodachi's breasts such that they looked more like a poorly sewn together attempt at a bikini. Stubbornly, the Black Rose tried to pull the straps back around her back and gritted her teeth as it smashed into her chest painfully.

"I could perhaps use some help here," Kodachi said to the girl watching her.

"Oh, right," the girl said, stepping forward to stand in front of Kodachi and trying to reach around her captain's back to snap the bra into place.

There was really nothing pleasant at all about the desperate attempt to get Kodachi's bra closed, though an outsider of inobservant bent would probably have ignored or misinterpreted the look of withheld breath and screaming on the Kuno girl's face and instead focused on how the other girl's face was almost practically stuffed into the the bulging breasts which in no way could have been called A-cups or even B-cups now.

"It doesn't reach," the other gymnast said.

And then one of the breasts slipped out of the far too small bra and a small stream of milk splashed into the girl's face. Yelping in surprise, she let go of the bra, which then snapped into her face. In surprise the shy girl stumbled backwards.

Both girls looked down at Kodachi's chest, and the areolas that were now more than an inch across each, with similarly large nipples. The owner of the chest experimentally poked into it and watched as a trickle of white fluid pushed out of her chest.

"All right, that's it," Kodachi said, grabbing her uniform blouse and pulling it on. "Thanks for your help, ….what's your name?"

"I'm Jin, Captain," the girl said.

Kodachi finished buttoning her jacket and pulling on her skirt and glanced in the mirror. Her midriff was starting to show, and the jacket and blouse was tight around both her chest and armpits. Her skirt was very high up on her hips, and hung their indecently. She just knew that she was going to be flashing her womanhood at anybody that was watching her close enough to pay attention. Though it didn't seem to bother her much.

It was like she'd grown several inches in height in the last hour, and gained broader shoulders and hips to boot. Or it could be back to someone shrinking her uniform, or replacing it with a smaller uniform. Though, since Kodachi was one of the smallest people in the school, that seemed unlikely.

And then, with a sudden rip, the jacket tore down from the neck, giving a revealing look at her cleavage.

"Well, thank you for the help, Jin," Kodachi said, looking down at the girl in her leotard.

She flushed as she felt a familiar sort of heat in the pit of her stomach. The sort of feeling she usually only got from looking at Ranma. She reached down gingerly to help the girl up, taking her in and then shaking her head.

"Errm," she said. "I need to go buy some new clothes."

With that, she took a series of quick, careful steps out the door, failing to notice as Jin followed the flash of her rear end through the flapping of the now ill-fitting skirt.

She had even more freckles the next time she looked into her reflection, though she had to admit they looked somewhat cute. Besides she was distracted at the moment with trying to avoid getting perverted looks as she made her way to a clothing store. She failed to note the tips of the horns now peeking out of her hair.

Inexplicably, she found herself passing a few clothing stores, finding herself not interested at all in what was shown on display. It was odd, she would have thought that, given her state of exposure, that she'd go for the first clothing store on the way. Instead, she found herself worried about the style of clothing. And it wasn't until she found a store that catered to the fad in American clothing that she found something that interested her.

And the first part of it was a picture of a man on a bucking horse. Kodachi didn't know the word "rodeo" but she was aware that what was on the poster looked damn fun. He was swinging a wide brimmed cowboy hat over his head.

Eyes craning as she walked into the store so she could keep looking at the poster of the cowboy, she was walking a bit slower now, completely forgetting that she was flashing with each swing of her new hips.

"Can I…err…help…you?" the woman, dressed in a very fetching and cute cow girl outfit asked Kodachi, drawing her eyes.

"Someone was messing with my clothes," Kodachi said instantly. "I need…well…everything."

The woman was staring at the horns sticking out of Kodachi's head for a moment before shaking her head clear and then stepping forward. She watched a blush work over the half naked girl's tanned, freckled face, but figured it was just embarrassment at her situation until the teen darted forward and caught the sales-woman's lips in a sudden and rather invasive kiss.

Kodachi broke off with a deeper blush and turned away as soon as she realized what she was doing.

"I'm sorry," she said. "I'm feeling a bit weird."

"All right…" the sales woman said. "Let's get you taken care of."

Fifteen minutes later, Kodachi was walking out in a tight pair of cut-off jeans with a broad, belt with many buckles. Tall white boots on her feet and a short, midriff bearing orange shirt. Her skin was tanned where it showed, though she'd seen that her breasts were still very pale. They hadn't had a hat she really fell in love with, but she could get that later.

She felt now, more comfortable than she'd ever felt in her life.

"Maybe I should spend my summer vacation in America," she wondered. "That rodeo looks very interesting."

Behind her, the sales woman was already starting to notice freckles.

**************

The heavy infection, which will result in permanent changes, only comes from physical contact. Jin's face in Kodachi's breasts was plenty to do that, the milk was just a bit more on top of that.

The only people that will get firmly infected from the aerosol will be the people that are right around the vials when they shatter or otherwise are released. Otherwise, the aerosol infection will result in mild and mostly temporary symptoms.

For instance, St. Hebereke is about to go through a period where its students are very interested in cowboys and westerns. Most of the girls will get a bit boy crazy and several might show signs of lactation for no apparent reason. But, they'll go back to normal in a week or so.

Those infected by the aerosol, which takes about twelve hours to develop, become immune to the permanent changes. As a result, only a small percentage of the population changes permanently. 10% as earlier said. Only someone with a permanent infection carries the aerosol infection, so the immunity doesn't spread far.

Getting infected with multiple strains would be rare.

Pictures of the process on my DA account. through my homepage

.com/art/SV-Kodachi-Process-161874482