Lilly wasn't really a snoopy girl. But when she coincidentally witnessed as her mother received a package at the garden gate from the postman, and then went back into the house, acting all secret as if she wanted nobody to see her bringing some package into the house, and when Lilly afterwards spotted her putting a load of red bonbons from the package into a jar that she hid on top of the highest shelf in the kitchen, it was enough to make the short girl move a chair under said shelf, put a pile of books on top of it and step onto the books to reach for the jar.
"Come on", Lilly murmured. She raised herself on the very tips of her toes, stretching her body as far as she could towards the 6'3 high shelf. She shifted slightly as the crate of books flickered on a little. "Come on, just a bit more!", the nineteen-year old whispered. Her fingernails eventually graced the jar that contained the mysterious sweets. Carefully she pulled it forward, more towards her reach, until her small hands could embrace the valuable container. "Yes!", she exclaimed. Smiling she put the jar carefully down the shelf, and pulled it closely to her body. Suddenly the pile of books underneath her feet wobbled. "Whoa!", she screamed as the books slid down the chair like an avalanche. Losing their footing her legs slipped away, leading her to fall in the other direction. Almost simultaneously Lilly and the books landed on either side of the chair, the short girl groaning as her butt made contact with the hard kitchen floor, while the jar with the sweets landed on her belly.
"Owie!" Lilly rubbed the denim fabric of her jeans skirt, caressing her aching backside. "Why did puberty hate me so much?", she sighed. Leaning against the chair she got back on her feet, holding the jar with the sweets in her arm. "Ow ow ow!", she yelped, feeling pain almost everywhere in her body. She put the jar on the chair, and took a look down herself. Luckily she didn't seem to have hurt herself seriously, though she feared she would get some blue marks later. Aside from a knee-long jeans skirt the not really tall girl wore a pair of white tennis socks on her feet with red markings around the toes. On top she wore a pink T-shirt with a white imprint over the small bump in her chest that read "Short and Sweet", the "Short" standing above the "Sweet" and the tiny "and" between them. Around her right hand she wore a wristlet made up of red heart-formed pearls, and a pair of rings with the same pendant hung from her ears. The colour of her skin was more on the light side, though she was not pale, her short smooth hair was light brown, and her eyes sported a green iris with some brown speckles. Between her eyes sat a cute little nose below which was a small mouth with slim lips. All in all her face was rather pretty, looking a bit childish with her round and chubby cheeks. After convincing herself she had only gotten some minor bruises Lilly's attention went back to the jar with the sweets. "Now let's see what's so special about you Mom wants you all for herself!", she said with a grin, and opened the jar. Taking a peek inside she found the little bonbons filled it up to the top, each being not much larger than a pea and glaring red. Lilly moved her hand through the small opening of the jar, and dug it into the pool of sweets. She played a bit with the small red balls, letting them glide through her fingers, before pulling out a single bonbon. Holding it in front of her face she sniffed on it. "Mmm, strawberry!", she chirped. Sticking out her tongue she let the small sweet drop onto it. Her shoulders twitched slightly as she could feel the sweet taste of the bonbon already, before she pulled it alongside her tongue into her mouth.
The corners of her mouth rose to a wide smile as she moved the small bonbon through her mouth, feeling it slowly dissolve. Her taste buds savoured on the most delicious sweetness she had ever experienced. "Mmm!", Lilly hummed in delight. Closing her eyes she rose a little to her tiptoes, moving her hips in slight circles. "Now I know why Mom didn't want to share!", she giggled. The young woman played a bit with the sweet in her mouth, pushing the shrinking ball around with her tongue. Her hand dove back into the jar to pull out some more of this delicious goodness. While she closed her hands around a small load of the red bonbons she didn't feel the loose fabric of her shirt was moving slightly around her chest. The small bump in her top created by her small breasts appeared to be reaching away from her, the cotton getting a teeny bit tenser around the curves of her bosom. Savouring on the taste of the bonbons Lilly didn't notice her chest stuck out further and further from her body, slowly tautening the pink fabric of her T-shirt around them. The contours of her small breasts that could only be guessed through her top became a little bit more apparent, the bulge in her top steadily rising. As they curved out from her body the imprint on the front of her top bend slightly, the edge of the letters becoming rounder just like the little mounds inside Lilly's brassier. Its small cups rubbed over Lilly's skin as her meat buns tried to outgrow it, pressing against its cushioning inside with rising force.
After gulping down the tiny rests of the sweet Lilly threw the load of bonbons in her hand into her mouth. The combined sweetness of all the little red balls made her tongue feel a tingly, the smile on Lilly's face getting wider and brighter. As she began to chew on them and the sweet sticky substance dissolved in her mouth her breasts received a little spurt in their growth. Rounding out from her figure the once subtle bump became gradually more eye-catching, the form of each individual breast slowly showing through her T-shirt. The letters lying over her chest looked like they were growing as well, the ones in the middle faster than those on the sides as her bust's circumference expanded. A slight shade appeared on the underside of her breasts, turning darker the more her vaulting bust blocked the light of the ceiling lamp. With the looseness of her T-shirt shrinking steadily the wrinkles around her chest slowly smoothed as her bosom pressed her brassier against it. The outlines of the cups began to shine through her top while her breasts began to loll out of them beneath it, lapping out on the bottom and the top. Though still far away from being big her bust had gotten at least so far one couldn't "oversee" it anymore. Once they had reached the maximum size in relation to their diameter, sticking out from her like a pair of split tennis balls their widest parts started to ascend from the rest of her chest. A sloping slant formed on the edges of her breasts, giving them a gradually more spherical form as they swelled out from her body while blowing up in width. Occupying ever more space the pink fabric was pulled from around her chest over the bloating slopes of her bosom which reached out to all sides away from her. The bottom steadily moved down over her chest wall, the tops rose towards her neck, and the flanks arched towards her shoulders, all in a very slow, but still noticeable pace.
Noticeable for anyone but Lilly who just stuffed another handful of bonbons into her mouth.
"Sho good!", she moaned with a full mouth. Her cheeks looked like they were about to burst, so many of the sweets were inside them. The smile on her face was so wide it looked silly, fitting the general look on the short girl's face. While she happily ate the sweets the additional "fuel" led the front of her bust to charge forward even faster. Her billowing assets wrapped her T-shirt around their curves, turning the fabric evenly tight around them and making it slightly transparent, especially the stretching "Short and Sweet"-logo. Slowly the hem of her top was rising over the beltline of her skirt towards her belly, and the fabric began to creak as it tried to keep her swelling bust confined. Meanwhile the cups of her small brassier were turning into triangles that lay on top of her mounds, seemingly shrinking around the growing masses of meat. On the edges her bra slightly pressed into her flesh which was, despite the firmness of her orbs, surprisingly tender. Fortunately both the cups and the straps were very flexible, so they didn't demolish the round shape her breasts were growing into. Their inner sides began to rub against each other, at first only slightly, but as the room inside Lilly's top diminished the contact between the swelling walls of her cleavage increased little by little. It was the feeling of her breasts hugging each other more and more tightly that finally got Lilly's attention, making her look down on herself. Where she usually only saw the almost flat board of her chest a pair of small grapefruit-sized spheres blocked her sight further down her body a little, the humbly big bosom lying snuggly inside her suddenly tight T-shirt. Through the brighter fabric of her top she could roughly see the gap between her breasts shining through it as well as the cups and straps of her brassier. Lilly blinked, seeing as her breasts expanded right before her eyes. The bonbons then fell out of her mouth as she dropped her jaw, the little sweets bouncing off from her rack and onto the floor.
While the bonbons rolled over the floor Lilly gaped at her chest in disbelief, watching it grow gradually larger. She could finally also hear the cotton being tautened over her rising breasts, and feel it steadily rise over the lowest of her belly, ascending towards her navel. Putting a hand in front of her mouth she felt her elbow touching the side of her bosom. Lilly blush slightly, thinking that it would usually hung in the air. "M-m-my…", she whispered, looking wide-eyed at her swelling spheres. She didn't really know what she should do. Go to a doctor? Call her mother? Run in circles and scream? Before she could decide however the straps of her bra suddenly snapped below her shoulders, causing the cups to slide down from the front of her bust. Lilly gasped as she felt her bra falling straight to out of her T-shirt to her feet. Her breasts wobbled slightly up and down, causing the pink fabric to creak louder and rub over them. Only slowly they came to a halt, jiggling for a few seconds before resting calmly inside her top again, save for their constant growth. Reaching the diameter of CD's her breasts were about to rip through the fabric, the first stitches already popping. The tightness didn't really hurt Lilly, but it felt a little inconvenient. Though she was quite sure she wasn't dreaming a part of her denied what was happening to her, for the simple impossibility of it.
As the tops of her bosom were almost being on height with her neck the swelling of her assets slowly decreased. Some more flesh was "stuffed" into them for a bit longer, but after growing into what must have been a good double D or E-cup Lilly couldn't detect any more movement in her chest, and could neither hear not feel her T-shirt stretching around her bust anymore. She held her breath, watching her mammaries a while as they rested snuggly inside her pink top. Once more the cotton creaked as she inhaled air for a long breath of relief, the extra-volume in her lungs puffing up her breasts some more before it left them again. Putting her hands around her orbs she cupped the soft piles of meat. Each little move of her fingers caused the cotton to creak slightly, and from time to time she could hear a part of the stitching giving away. Slowly Lilly moved her hands in circles over her breasts as if to check if they were really real. Their form was outstandingly firm and round, Lilly almost believing there was a pair of small rubber balls tucked into her shirt. But she could clearly feel it was her flesh she was stroking, the nerves in her breasts sending pleasant tingles through the teenager's body as her hands explored their new dimensions. She pulled her head back a little, another slight blush forming on her round cheeks. "Where the hell did Mom get those bonbons?", she whispered.
The shirt groaned as her hands softly fondled the mounds inside it. Carefully Lilly moved her fingers over the taut fabric, taking in the warm pleasure erupting from her sensitive meat buns at every stroke. A variety of thoughts went through her head, thoughts triggered by urges and sensations that could be summarized in one single word: More. Opening an eye she glanced towards the jar with the red bonbons. One of her hands left her bosom and slowly reached for the small opening in the jar. It hesitated a moment in front of it, the fingers moving back. But then they shoved right into the jar and pulled out a large amount of the delicious little sweets. "Come to mommy", Lilly whispered, pulling her hand moved towards her mouth. Tilting her head a bit further backwards she was about to drop the cargo into her open maw, when she threw a casual look towards the kitchen door. Immediately her whole body froze in its motion. "M-mommy?", she stuttered.
In the door her mother was standing, holding a full grocery bag in each hand. The middle-aged woman looked quite surprised at her daughter, blinking a few times towards the comically stretched print on the front of her T-shirt. Lilly, standing there with the bonbons in one hand while the other one groped her enhanced bust, felt more blood rushing into her face. She lowered her arms and folded them before her belly, gulping as she waited for some sort of scolding because she had taken the bonbons. Her mother put the bags on the floor, not taking her eyes off from Lilly for a second, and crossed her arms before her chest. "Oh darling", she sighed "That was supposed to be your birthday present!"
But I don't want to
What exactly do you mean by "legitimate"?
But sorry, this is a one-shot I wrote to distract myself. The only way to continue it would be with the omnipotent "More" option. I really hope I won't be doing that