It was late one Wednesday night at the "Coffee City" - just after its nominal closing, in fact - and Rose Crescint was sitting on her favorite stool, watching the last of the evening's "Old Towne" shoppers slowly stroll past the shop's big front window while she sipped her drink. In spite of the cafe's name - indeed, in spite of the fact it was a cafe - she was drinking ordinary tea, with just a half-spoon of sugar in it.

Rose was a student at the local city college, living with her best friend - and fellow student - Miyuki, in a small apartment right around the corner from the cafe. She had just turned twenty the week before (Mi was still nineteen). Of mixed black, white (and several others) ancestry, she had even, light brown skin, the color of caramel. Her dark brown curly hair - slightly frizzy - framed a pretty face and her metal-framed round glasses did nothing to hide beautiful eyes that her roommate had once described as "a cross between amber and root-beer in color."

Currently, she was dressed casually in a light tan cotton sweater-top, a short pleated skirt of a slightly darker tan color and a deep blue vest which didn't really match the rest, but which she had worn anyway because she liked it. Her body was slender, though nicely muscled from a combination of walking, weekly hikes and working out with some weights that used to belong to her brother. The short skirt showed off her sexy legs nicely - and when she wasn't sitting on it, her firmly round butt as well. Unfortunately, her breasts weren't nearly as well rounded as her butt, being only "A-cups", but the rest of her slender, firmly muscled body was a nice series of well planned curves, emphasized by her smooth skin, so she didn't feel "cheated" in any way.

She took another sip of tea and waved at a somewhat friend who walked by the window.

Suddenly, a heavy wooden bottle crate was dropped on the counter behind her, causing her to jump. Or, anyway, jump as much as you can while lounging on a couple of barstools at once. It was enough, however, to cause her glasses to slide down.

Swinging her long, brown legs off the second stool, she spun around to face Chris, the evening manager - and by this time of night, entire staff - of Coffee City. He was disheveled and not a little bit dirty from the long-delayed cleaning out of the back, but was grinning at her like an idiot. Rose pushed her glasses back up her nose. She'd known Chris for about two years now; a nice guy, but addicted to practical jokes.

Like seeing how far he could make someone jump.

"What is that?" She said, glaring at him slightly as she pushed her glasses back up to let him know "She Was Not Amused."

Chris, apparently oblivious to her glare, leaned back against the counter and wiped the sweat of his forehead with a towel before he answered.

"It's some old soft drinks I found today when I cleaned out the walk-in," he said. "God knows how long they've been back there - these bottles look like they date from a century or so ago."

"Oh, come-on, this place hasn't even been here five years yet!"

"'Coffee City' hasn't been here five years - but before that it was a yogurt shop and before that a health food carrot-juice bar and before that an ice-cream place and before that a malt shop and before that..."

"...I get the point."

"Hell, our walk-in's so old there's only one guy left in the state who knows how to fix it - and he's retiring next year."

Rose still wasn't all that convinced. "Still, you're suggesting someone bought this box of soda a century ago and it's been sitting in this building's refrigerator, or whatever, since then? Come on!"

"Weirder stuff happens all the time on the X-Files."

"But that's fiction! This is real life!"

Chris nodded. "Yeah, but truth is stranger than fiction - because fiction has to make sense."

He grabbed one of the straight-sided, almost beer-bottle like sodas out of the crate and handed it to Rose. She took the cold container and held it up to look closer.

The bottle's glass was thick and brown and a large ceramic and rubber cap topped it. Rose looked at the "label" (which was painted on) and in spidery, Edwardian script written over a pair of tall, stylized mountains, it said:

And that was it. No manufacturer, no ingredients, nada. She turned the bottle around, but nothing else was printed on it.

"Tonic?"

"Yeah, they used to call a lot of soft-drinks that in the old days. That's when they were trying to promote them as sorta health-food drinks or medicines. That's back when Coke used to have real cocaine in it."

"I know, but still, 'Gran Teton's Healthful Tonic'...?"

He shrugged. "So? I seem to recall your favorite soft drink is 'Doctor Pepper'."

Rose paused. "Point taken," she said finally. "What do you plan to do with it all?"

"Actually? I thought I might try one..."

"Eeeuuu! Hundred year old soft drink!? What if it's gone bad?"

"Then I won't drink it - I wasn't planning on just chugging it, you know. If it's gone bad, it'll smell or taste funny. Anyway, I don't think soda can go bad - dry up or go flat, yeah, but bad?"

"And if it has, say, cocaine in it?" Rose inquired.

Chris shrugged again. "If it did, they'd say so on the bottle - that would have been a big selling point when this was made. Anyway, if I start to get a buzz from it, I'll stop drinking it. You want to try?"

"Ummm," Rose looked at the bottle in her hand again. "I'll...think about it."

"Whatever. I'm going in the back to finish washing out the walk-in. If you leave before I get done, make sure the door locks behind you."

He pulled a couple of bottles out of the box and started for the door to the back area.

"I'll leave the rest if you want to try one."

He left Rose still looking at the bottle she held. "Oh, what the hell," she said finally.

After spending a couple of minutes trying to figure out exactly how the stopper worked, she finally managed to get it out and set aside. Rose held the now open bottle up to the light and shook it slightly, trying to swirl the liquid around inside it. She didn't see any clouds or floating bits go by, but the glass was pretty dark, even with the light behind it.

Then she lifted the bottle to her nose and sniffed cautiously. There was a slight odor of citrus, but it didn't smell bad, or like it had gone off - though what spoiled soda smelled like, she had no idea. With a contemplative face, she even more tentatively brought the bottle to her lips and just barely tasted the liquid inside with her tongue. It had an unusual flavor, slightly orangy, with a hint of something else that she couldn't identify, but it didn't taste bad in any way.

She cautiously took a small sip.

The heavy carbonation tickled the inside of her mouth as she swished the soda about, alert for any odd aftertaste or effects. That was surprising - she would have thought it would have gone flat decades ago.

Finally, reasonably sure it wasn't going to poison her, she swallowed and then waited to see what her stomach thought of it.

Apart from a slight burp of the tangy gas about a minute later, her stomach registered no complaints. She stared at the bottle again for a minute and then decided to stop dealing with it as if it was a science experiment and just drink it like a soda.

Stretching back out on the barstools, she began sipping the tonic as she watched the late-night crowd outside thin to a handful now that the hour was growing late.

She burped again - or at least thought she did. The burp seemed to go astray somewhere. She took another sip - she'd finished about a third of the bottle by now - and was rewarded with the feeling of a much larger burp building up in her stomach. She politely put her hand up to her mouth and relaxed to let the slightly uncomfortable pressure out.

Instead, the pressure moved up towards her chest - and stopped. Suddenly, Rose felt her the skin of her chest tighten and grow warm, almost hot and she looked down just in time to see her breasts suddenly inflate (there was no other word for it) from their normal tiny A-cup volume, to a pair of firm, tennis-ball sized tits, with suddenly erect nipples showing clearly through the knit cotton fabric of her top, now stretched from comfortably loose to skin tight over the swollen spheres...

She wanted to call out, or scream, or even just bibber, but she couldn't seem to take a deep enough breath; for the pressure was building up in her stomach again. As it reached the same near-painful stage as before, it broke free and rushed up into her chest.

Her breasts began to expand anew, pushing out farther against the stretching material of her top, until they reached the size of large grapefruits. Rose stared at her now full bustline as it rose and fell with her frantic breathing. Another burp began to form, larger still and she shifted her stare to the bottle, still in her hand.

" Fills you up and fills you out?' Fills you OUT??!!!"

She tried to hold it back, but the now almost unbearable pressure once again released and slid up into her chest. Her tits surged forth, expanding in seconds from grapefruit size to the size of her head - then seconds later, even larger. Struggling against her sweater, they tugged it free of her pleated skirt as each now ten-inch-wide breast fought for room in a top that had become many sizes too small. Rose hardly dared to breath for fear her vast bosom would burst right through fabric stretched as thin as tissue.

And in the back of her mind, she also feared she would burst. Her breasts felt tight, full, heavy, still trembling from their rapid growth and they swayed with every slight movement she made. Her nipples were as wide as her thumbs, nearly an inch long and throbbing. And if her breasts were going to burst out of her top, they planned to point the way.

Slowly, sloshingly, she lowered her legs from the stool and stood up. Her top pulled the rest of the way out from her skirt and exposed a three-inch strip of her waist. Reaching to see if she could tug it down some, she discovered that it also exposed several square inches worth of the lower curves of her now massive tits. She bit her lower lip in near fear as she stared once more at the bottle, still clenched in her hand.

"Fills you out, alright," she said very softly, still terrified of taking a deeper breath. "I've got to get help...I've got to get home."

She quickly discovered walking was going to be a whole new experience. Every step she took towards the door caused her mighty breasts to bounce and sway within her drum-tight top. As tight as it was, though, there was still a slight rubbing of the material across her engorged nipples. Confused, worried, hell, scared as she was, she could feel herself being slowly...aroused by the gentle friction. She could feel her nipples harden - nearly piercing the cloth - and her breasts flushed and swelled ever so slightly from the arousal.

She felt the seams under her arms start to go.

"Not now," she panted to her flushed, swollen chest, wrapping her arms around it to try and hold it in. "No bigger, please. I have to get home."

The arousing sensations didn't go away, but her sweater's seams stopped their alarming popping noises and she continued on out onto the street, arms loaded with soft, warm, firm, heavy tit. Only a few people were still left strolling the sidewalks as she carefully made her way around the corner to her apartment building, walking with the deliberate slowness of someone trying not to spill a very full glass.

"Something's very full, all right," she mumbled as that image came to mind, while she held her breasts tightly to herself and hoping no one would see her. So distracted by this, she didn't even notice she was still grasping the bottle in her right hand.

Going up the stairs to the second floor was...difficult...with the need to hold her tits in and take gentle steps upward, but soon she was at her front door. Slowly releasing the death-hug on her breasts - half fearing they had grown even larger on the trip home though she'd felt no more of the inflating burps - she fished her key out of her pocket and let herself in. Closing the door quickly behind her, she noticed she was still carrying the stupid bottle of "Healthful Tonic" and slammed it down on the end-table by the door.

That violent movement was the last straw for her over-stressed sweater and she felt both seams go at once, exposing the smooth, curvaceous, bulging sides of her inflated breasts. The remains of her top still covered the fronts of her mammoth boobs, but only as long as she didn't move.

She tried not to.

"Rose? Is that you?"

Her mind froze briefly. Miyuki was home - and coming into the living room. She spun around towards the entrance to the hallway...

...her breasts rocked...

...and what was left of the front of her sweater tumbled into the newly created depths of her cleavage...

...as her roommate entered.

Miyuki was wearing the over-sized t-shirt she used as a night-dress and a less...distracted...observer would have noticed that the white of the fabric set off her long, black, sleep-disheveled hair and smooth golden skin wonderfully. Quite frankly, Rose didn't notice.

There was a long, motionless pause.

"Wha, what, what happened to you?" Miyuki finally managed, staring at her roommates basketball-sized breasts.

Rose, embarrassed, tried to cover herself with her hands. It quickly became obvious she had no where near enough of them.

Miyuki hesitantly walked over to her, still staring at her chest. "Those can't be real!"

Reaching up, she poked Rose's right breast with an index finger - then quickly pulled it away and stepped back, shocked to discover the feel of real, warm, flesh beneath it. Rose gasped a little at the touch, then - now even more embarrassed - bit her lip to try and repress the massive feelings of arousal that her roommates's one little poke had engendered within her.

"My God! They are real!" She said, staring first at the giant breasts in front of her, then at her finger, then back to the breasts. "How...how did this happen? What did you do?!"

"Oh, gods," Rose said, almost in tears.. "Chris found this crate of old soft-drinks..." she gestured at the bottle with her elbow so she could "point" without releasing her breasts. "...and I drank some and then I just..." she hefted her breasts slightly "...blew up!"

Rose caught view of herself in the full-length mirror by hallway door and froze. Slowly she lowered her arms and stared open-mouthed at the image in the glass.

Facing the mirror she saw that her entire ribcage was covered in tit. Turning slowly to the side, she saw that they stuck out from her chest nearly a foot, like two firm mountains of flesh and she suddenly recalled the stylized mountains - or what she had thought were mountains - on the bottle's label.

Nearly crying, she said "God, I'm huge! What am I going to do?"

She turned back to Miyuki to see her studying the bottle of "Tonic".

While Rose had been happy with the size of her breasts, Miyuki had always felt, well, deprived. But then, even Rose's old A-cup sized bras would have been baggy on Miyuki. Rose's breasts had been tiny - Miyuki's were non-existent. She used to play touch football with the guys until she was sixteen - and had no problems playing on the "skins" team.

"You just...drank this stuff?" She asked, lifting the bottle up to look closely at the label.

"Ummm, yeah," Rose paused carefully, a horrible thought growing in her mind. "Mi, what are you doing?"

Miyuk knew she was beautiful - certainly the guys said so often enough - even with an optically flat chest. But she also knew that more than almost anything else, she wanted to be beautiful with breasts. And now her best friend had just walked in with the biggest pair she'd ever seen - and told her how she'd got them.

Rose looked on in shock as Miyuki tilted the bottle up and chugged it in one swift motion. Giving a sigh of satisfaction, she noticed Rose's mouth hanging open and smiled a canary-filled cat smile at her roommate.

"What have you done!? Are you insane!!!" Rose shouted.

Miyuki wiped her mouth and then gestured at her chest.

"I can't let you be the only one who grows around here. I'm smaller than you are - er - were. Anyway, it wasn't even a full bottle - how many did you drink, anyway? Three, four?"

"But I didn't drink three or four bottles'," Rose almost screamed. "I only drank part of that one! You've got to have drunk twice as much as I did!!!"

It was Miyuki's turn for a shocked look.

"Twice as...Ooooo!"

Rose saw the front of her friend's t-shirt suddenly billow forth. Miyuki dropped the now empty bottle and moaned as her breasts swelled from non-existence to six-inch diameter spheres almost before that bottle hit the floor. Rose looked at her roommate's new frontage open-mouthed - and then it expanded again.

Her breasts each ballooned up to over a foot in diameter as Miyuki began struggling to remove her formerly over-sized t-shirt, which was now doing its best to squeeze her to death. Rose ran over to help - her own breasts wobbling about like weather-balloons in a high wind. Between the two of them, they managed to peel the shirt over Miyuki's now massive tits, which swayed heavily when released from confinement.

And then started to grow yet a third time.

In seconds, the third expansion ended - leaving the both of them staring in shocked amazement. If Rose's breast's were huge, Miyuki's were indescribably so. In fact, indescribable did not begin to describe them. Each hung down past her belly button - if the term "hung" could be used to describe anything as round and taunt as beachballs - and each had to be over fifteen, sixteen inches in diameter - more than three times the volume of Rose's own inflated tits. Miyuki looked as if she could barely stand upright under their vast bulk - which perhaps explained why she fell with a quivering thud into the couch, her mighty breasts jiggling like a waterbed with small children playing on it.. 

Nipples an inch-and-a-half across thrust out of puffed areolas four times that wide. As Rose watched, she could see them throbbing, as if only just able to contain the vast pressure behind them. Her own nipples throbbed in sympathy.

"What have I done?!" Miyuki said quietly, fearfully as she her hands slowly roved over the vast mountain of tit filling her lap.

"That was my line, you don't know what that stuff does! You're fucking crazy!" Rose said, just as quietly - with not a little anger in her voice.

"My God, girl, I thought I was big! Can you even walk with those things?"

Miyuki wrapped her arms under her breasts and tried to lift them. Ponderously they rose a few inches, her arms almost disappearing into their softness. "Maybe, I don't know - they're so heavy."

Releasing them, she leaned forward, resting on her soft breasts and, waving away Rose's help, pushed herself back up to her feet.

Once there, she swayed for a moment, slightly hunched over. Slowly she straightened up, then took a few tentative steps forward, then some more with greater confidence. Her enormous breasts slowly rocked with every step, but after a few seconds, she was walking more or less normally.

Curious, she bounced up a few times on her toes. Her chest bounced even more, but she decided she was in no danger of falling and turned to face Rose, who was surprised that her friend could even stand up straight, let alone walk. Big as they were, she should have fallen on her face - or breasts anyway - before the first step.

"I guess I can. But it feels so weird, like someone's pulling me forward. And they move so much."

"Tell me about it," Rose snorted. "Coming home, my boobs felt like they were made of jello - real heavy jello."

Suddenly, a new fear flitted across Miyuki's face. "Rosy, what if we keep growing?"

"Oh thank you for that comforting thought," she replied with a grimace, then thought about it. "I don't think we will - I hope we won't. I grew in three spurts when I drank it and so did you. You grew a lot more each time 'cause you drank more, but it was still three spurts. I guess it's three strikes and you're out..." She gestured with her hands in front of her own vast breasts. "...to here. God, Mi, what are we going to do? We can't even go outside, nothing we've got could possibly fit anymore! How are we going to explain this to people? I'm as big as one of those overinflated silicon-strippers and you're...you're...shit, no one's as big as you. We're a pair of freaks!"

Miyuki gave a weak smile. "Two pair, actually."

Rose glared at her. "You say anything about 'a full house' next, I swear I'll smack you."

"Sorry," she said, smile slowly fading. "I couldn't resist." Her smile faded-out completely and tears started to form in her eyes. "I guess we've got a great future in skin-magazines, huh?"

"My life's dream," Rose said, voice heavy with irony. Then she noticed Miyuki's expression and her own softened as she moved over to hug the short (no longer "small") girl.

Their breasts, naturally, collided first. The huge, electric jolts of erotic pleasure that zapped through both women's bodies from the points of contact were far less natural.

So intense was the feeling that Rose fell to her knees, her breasts moving down from the tops of Miyuki's, to the bottoms, to Mi's hips in a long, soft slide. Miyuki only remained standing because Rose now had her arms tightly around her waist - also her face was now buried between the vast mountains of Miyuki's tits.

She could feel Rose's nipples - now swollen twice their already enlarged size - trying to bore into the tops of her thighs. And her own felt as if they would burst, so aroused were they. Her hands naturally found the back of Rose's head, slid down to her shoulders and tried to push her even deeper into the Grand Canyon of cleavage on her chest.

In seconds, the overwhelming feelings coming from their breasts pushed both women up and past the point of orgasm. Rose almost squeezed Miyuki in two she came so hard and Mi's small hands tried to push Rose inside of her as wave after wave of orgasm crashed through them. Finally, both began to come back down and as they released each other, they both collapsed on the floor, panting, sweating and jerking slightly as little shocks of pleasure continued to spark through their bodies.

"Wha...wha...," Rose paused, trying to catch her breath. "What...was...that?!"

Miyuki, laying next to her, rolled over onto her back, mountainous breasts swaying through the air as her chest heaved. "Oh...GOD...I don't...know! I never felt ANYTHING like that. Even that time...with Richard...when everything was perfect. It didn't feel a tenth this good. No sex feels this good outside of a bodice-ripper fantasy."

"Well," Rose panted, as she tried to get back to her feet. "I think we could definitely...rip a bodice or two...just by breathing too deep." She managed to get to a sitting position. "And if an orgasm THAT good doesn't qualify as a fantasy..." Now she got her feet beneath her. "...I don't know what..." She grunted as stood up. "...does. I don't know what that stuff did to us, but I think we better find out, fast!"

She looked over at Miyuki, still laying on the floor, with one arm over her eyes and the other almost subconsciously stroking the side of her breast. "Need a hand up?"

"Wait, wait a moment more."

There came a frantic pounding on the door and both women's heads jerked towards it.

"Rose? Please be there. I need help!" Came the muffled, frantic, but oddly familiar voice.

Rose and Miyuki stared at each other, then at the door. Rose was still wearing her skirt, vest and the tattered remains of her sweater-top. Miyuki was down to a pair of panties. Neither was what you'd call "dressed for company."

"What'll we do?" Miyuki hissed, as the knocking resumed, even more hysterically

Rose thought frantically, then offered her a hand up. "I need one of your sleeping-shirts. You're too big for them now, but I still ought to be able to stuff these puppies in."

Miyuki nodded as she accepted the offer and got to her feet, carefully avoiding any breast contact between her and Rose. Upright, she ran for her room, breasts bouncing wildly and seconds later reappeared and tossed a t-shirt at Rose.

Meanwhile, Rose had taken off her vest and torn top and, catching it out of the air, pulled the t-shirt over her head. It was a tight fit over her new basketball-boobs, but she managed to squeeze them in. A quick run of fingers through her hair and she nodded at Miyuki, who slid back into the bedroom and closed the door. Rose went up to the front door and opened out to the length of its chain, looking at their insistent visitor.

An oddly familiar, but terrified face peered back at her. Rose's eyes opened wide as below that face she could see the terrible depths of a vast cleavage that could have swallowed even Miyuki's whole.

"Help me," came Chris's soft, terrified - and now very feminine voice...