"All bikers to the starting line! I repeat, all bikers to the starting line!"

Hearing the voice of the announcer Gina stretched herself one more time, raising her right hand far above her head while holding the left one on her hip. She tilted her body to the left and spread out her right leg, her blond smooth hair shining brightly in the afternoon sun as it fell to her shoulder. Finishing her warm-up Gina relaxed her pose again. She wiped a strand of hair from her face and tucked it behind her ear, while her blue eyes threw a casual glance at the large church tower clock above her. Only a few minutes before the race would start. She grabbed the handlebars of her bike that was leaning to a lantern next to her and pushed it onto the street. Most of the other racers had already gotten into position, each wearing the same standard outfit as Gina: A pair of black bloomers and a white short-sleeved top with the number of the racer on the back, in her case 55. The clothes were rather form-fitting, though truth told there wasn't much to show in Gina's case except for a cute little butt and a rather small bump around the chest. The young woman searched her place in the grid until she found her position between two other female bikers. The one to her right had a slight tan while the one to her left was a little bleak. Gina found that funny, for the colour of her skin was pretty much between them, more on the bright side but not white as chalk. "All bikers to the starting line!", the announcer repeated once more through the speakers. 

After getting into position Gina pulled out a bottle of milk from the bag on her basket that she had bought fresh from the super market. "One little sip before I go", Gina said to herself while opening the bottle. Holding it to her lips she let the creamy white liquid run down her throat. It was a rather warm day, so the cool drink felt pleasantly refreshing. After her "little sip" had emptied almost half of the bottle she closed it again and put it back into her bag, not giving it a second look. If she had, or even better if she had more carefully inspected it upon buying the label on the side might have caught her attention: "WARNING! From genetically modified cows! May cause swellings on some."

Once she had stored the milk in the bag again Gina swung her leg over the bike, putting her foot on the pedal. Having both hands around the handlebars she looked up to the clock of the church. The heat of the afternoon burned on her, her chest especially becoming very warm. "Welcome, ladies and gentlemen!", the voice of the announcer echoed through the speakers. "To our annual beneficial 50 km bike race! Like every year the entrance fee will be divided upon the town's orphanage as well as an International beneficial association. This year, we are happy to announce over four thousand dollar will be donated to the international breast cancer awareness campaign! To motivate our racers to give their best the winner will receive a special price of one hundred and fifty dollars! The places two to ten receive a one-month premium ticket which grants them free rides on every city bus – to compensate for the fact they will probably be unable to ride a bike for the next four weeks." While he spoke Gina felt a warm tingle in her chest, but didn't put any thought to it. She concentrated on the clock and the announcement, ignoring the electrifying prickle that increased in her tiny breasts. Without her notice the fabric of her top slowly bulged, reaching away from her body. The small swells inside her shirt arched outwards into all directions as it seemed like someone was pumping them up with an air tank. 

"This year over sixty racers will be competing against each other! This is a new record for this traditional event!" Loud applause came from the mass of people that had assembled on either sidewalk of the street. While Gina listened as the announcer explained the route the curves of her petite bosom that could barely be distinguished from the rest of her torso were becoming bit by bit more apparent, pressing outward against her shirt. The wrinkles of the fabric were pushed forward and slowly being evened over the uprising bulk of her breasts. At the same time the area from which they protruded out of her torso was expanding, the flesh around them seemingly being dragged out of her body as it was integrated into her breasts. Soon the once flat board of her bosom sported a small bulge, not really striking except for the fact that it was constantly pressing against the fabric of her shirt. Unaware of what was happening to her except she was feeling strangely warm Gina grabbed behind her into her bag again, her gaze fixed on the clock tower that would commence the race any second. 

...and finally the racers will cross the finish line at the bridge!", the announcer finished his explanation while Gina pulled out the milk bottle again. "Now, it is almost time for the race to start! Like always the first strike of the clock will be the starting signal for our competitors!" Still looking up at the clock that showed one minute before four Gina leaned up on her bike, sticking her chest out a little while she moved the bottle towards her mouth. As she was about to drink the rest of the milk to cool her warm body however she paused. There was weird feeling as her shirt pressed against her chest, not uncomfortable, but unfamiliar. She then wondered why her chest even felt so tight around her chest, and took a look down herself. The fabric of her top wasn't lying as loosely around her even torso as it usually did. Instead two small bulges stood out from her shirt, nimble, but definitely more than she was used to see, as if the halves of a split up tennis ball had been put into the bra she didn't wear. 

"W-what?", Gina stuttered, then blinked at her bosom upon another discovery. Staring closely at it she believed to see the wrinkles on her top were moving slightly over her breasts, making it appear as if her breasts were... reaching... out... from her?

The bell from the clock tower threw her out of her daze. All other bikes immediately started moving, elbows bumping against hers as the drivers behind Gina passed her by. Quickly she shook her head, discarding her observations as a hallucination, and gulped down the rest of the milk. Throwing the empty bottle on the street she grabbed the handlebar of her bike and started pedaling with both feet. But she was still a little irritated, so she couldn't really pick up much speed in the beginning. "Great start", she murmured as she was the last to cross the starting line, the others bikers having already build up some distance to her. While she pedaled as fast as she could, trying to get closer to the rest of the field, the little mounds in her shirt continued to rise up and spread out, conquering her entire chest. Bulging into every direction the slopes of her little hemispheres steadily bent outwards, growing bit by bit more voluminous. Slowly it seemed like the rate at which they flared out was increasing, the wrinkles on her shirt shrinking and disappearing ever faster. With each millimetre her humps ascended from her chest their sides were vaulting outwards, the ankle to her torso becoming sharper by the second. Gina, who was still oblivious to what happened to her, suddenly felt a rumble in her stomach, the noise from her belly making her blush slightly. "Was the milk bad?", she wondered. That was the last thing she needed, bad milk inside her stomach while she was riding in a race. Out of reflex she looked down towards her belly, even though she knew she wouldn't see anything if there was really something wrong with her stomach. 

Her eyes nearly popped out of her head at what she did see however.

"O-oh my god!", she gasped, seeing the tennis ball-sized bulges in her shirt, but this time each one as large as a complete tennis ball. Clearly she could watch them swell inside the fabric, smoothing it, pushing it outward as they were growing rounder and firmer all around. And at a steadily faster pace, as she realized, seeming like the valve of the air-tank that pumped them up was gradually turned on. Wide-eyed and open-mouthed Gina gaped at her swelling chest, watching it get bigger ever faster. "T-this can't be!", she shrieked. She clenched her fists around the handlebars of her bike, mindlessly pedaling. Luckily the track from the church to the bridge was a straight road so she didn't have to take any curves. She didn't pay much attention to the race however anyway, not noticing as the distance between her and the rest of the bikers steadily increased. Getting last place wasn't really the thing that concerned her most in that moment.

With the rate of their expansion increasing her shirt was quickly wrapped around her growing breasts. As they flared from small apples towards grapefruits the fabric between them was also rising upwards, obstructing the sight on their inner curves. The two separate swells of flesh appeared more and more like a single bump on her torso, a bump that continued to spread over her chest while vaulting on the sides. As the widest parts of her breasts seemed to reach out from her they were gently squeezed together on the inside, gracing each other's arching flesh. Bit by bit the contact zone between the inner walls of her bosom increased, their round shape slowly flattening. The more they pressed against each other the stronger the subtle tingle in them became, Gina blushing upon this inconveniently pleasant feeling. "Oh", it broke through her lips, a soft moan barely more than a whisper. As she continued to ride down the road through the historic district of the town the increasing size of her breasts caused them to jiggle slightly every time she pedaled, subtly at first, but with each ounce they gained their wobbling became more apparent. While they rubbed against each other and her shirt with each small bounce the flanks of her bosom began to flare over the sides of her body, their widest parts on height with her armpits as they bulged into a pair of small spheres. Rising upwards the tops of her bosom pulled down her shirt, bit by bit widening the collar and dragging it towards her growing globes. Similarly the hem of her shirt was lifted upwards slowly by the protruding front of her bust, gliding over her bloomer's belt line. Wrapped around her bosom the fabric hid the roundness of its underside a little, hanging down from it and lying loose around her belly. The bigger her breasts became though the more their lower slopes pressed against her top, showing the vaulting curves and their almost unnatural firmness. Despite having the diameter of a DVD each of her breasts pointed roughly four and a half inch straight out from her body as round balls of tissue, falling less on her ribcage and reaching further towards her neck than one would expect at their size. 

"W-w-what the heck is going on here?!", Gina screamed. Leaving the historic district behind she continued to drive down the road, past large apartment blocks. Her shirt became smoothly taut around her bust, showing the round form of every curve as their swelling eliminated the last wrinkles around them. Growing ever tighter on her the holes in the stitching of the fabric steadily widened, turning into a stretching fisher-net that showed the bright skin beneath it with increasing clearness. The collar of her shirt had widened so far by then the swelling tops of her bosom were pressing against it and allowed a tiny cleavage to poke out, at first only a few millimeters deep. As her bosom continued to wrap the fabric over its growing curves, wrinkles appearing on the sides where her top was pulled around them, the collar also was slowly dragged downwards. Millimeters soon became a centimeter as the fabric glided over her globes, at the same time making the collar wider to reveal more skin around the exposed cleavage. Meanwhile her shirt's hem rose past the beltline of her shorts, exposing a slim line of her lower belly. As constantly more fabric was pulled up the lower slopes of her breasts, showing clearly the descent of her bosom from the front downwards the excerpt on her stomach expanded as the hem of her top rose up. Below her bosom her shirt was lying tightly on her torso again, not hanging from her chest anymore as her assets were roughly as big small water melons, each sphere resting snugly inside the conquered space of the shirt. The flanks of her breasts got bit by bit closer to the end of her shoulders, pressing slightly against her arms. Gina leaned a little forward to release the pressure, her breasts still wobbling every time she pedaled. At the same time she took a nervous look down into her humble cleavage. Suddenly the fabric ripped at the end of the collar, being torn apart over her breasts. The tear ripped down a few inches through her shirt, just ending at the highest ascents of her globes. "Oh god!", Gina gasped as she stared into a hand-sized V-neck. Her breast flesh squeezed through the hole, the tingle inside them increasing once again. The rest of the bikers were far out of her sight by then, but she didn't give a thought to them. "This... this has to stop soon, right?", she tried to calm herself. "I-I mean I can't go on growing like this for long, o-o-o-o-r yes my alarm clock's gonna wake me up any moment! Yes of course! I'm just dreaming this, that's all! This is all just-"

Suddenly a cell phone landed in her cleavage.

Surprised Gina leaned up on her arms, causing her assets to make a bounce while her straightened arms pressed into the sides of her bosom. The walls of her cleavage engulfed the small black phone entirely, Gina feeling it slide down until it was stuck between her expanding breasts. "W-what t-the-?", she stuttered when a sudden sensation went through her tingling bosom, forcing her silent. Between her arms the growing stacks of flesh piled up at a slightly faster pace, pressing with rising force against them as they quickly outgrew the size of her head. "Oh come on!", Gina moaned. Wrapping the top around them even faster her breasts smoothed the fabric completely around their spherical undersides, making it rest on her bosom like a second skin. As they pressed with rising force against her shirt the low noises of stretching steadily became louder even drowning Gina's occasional pants. The rip on her collar steadily grew deeper and wider, going down curves towards the center of her chest while the fabric was split apart over her bosom, showing the soft and firm flesh beneath it. Constricted by her arms her meat buns mainly reached out to the front, making their form gradually more oval while they were squeezing through the V-shaped gap in the shirt. As the pressure was accelerating the ripping her cleavage quickly extended from a pointy to a wide triangle, revealing bit by bit the slopes of her breasts. The larger they became more stuffed not only her shirt but also the gap between them was becoming, changing from a softly curved valley to a steep and narrow abyss. Pressing with rising force against each other the young woman was getting goose bumps from the tingles in her breasts, the sensation resembling ants that were crawling all over them. Gulping Gina tried to focus on pedaling, discarding all kinds of naughty thoughts that started to pop up in her mind. 

Still unnaturally firm her breasts continued to flow over her arms, their flesh embracing them like a maw while sandwiching the fabric stuck between her body parts. Her arms were slowly getting pushed aside by the round swells of flesh as they tried to spread out from their compressed egg shape into a pair of full spheres. The hem of her shirt meanwhile slid up her entire belly, revealing her slim naked waist that stood in great contrast to her constantly more top-heavy figure. On the beginnings of her bosom the number of wrinkles increased, her growing assets wrapping the fabric forcefully around them and turning her top into semi-sheer cover around them. The strain on Gina's back was increasing by the second, the weight of her unsupported rack dragging on her muscles while her shirt was stretched painfully tight over it. Groaning she leaned forward further, giving her breasts enough space to turn into a pair of perfectly round volleyballs for a moment. Each pedaling caused them to sway to the side, bumping against each other in her cleavage while slightly hitting her chin from time to time, more often the larger they became. She could hear them pressing against the taught material of her top, torturing it further and sending a warm chill down her spine as the skin of her bosom felt like it was also pulled over the swelling tissue beneath it, growing more sensitive by the second. The cell phone between her orbs shifted slightly in its position, its smooth shell tickling the young woman. Blushing deeply she twitched with her shoulders, causing her bust to jiggle some more. Its front was almost touching the handlebars of her bike, and the bigger she got the further it was approaching them.

"God, this is so stupid!", Gina mourned, still riding down the street. She passed by the apartment blocks, reaching the riverside road. Next to her the right side of the street split into a parallel road while on the other side the river peacefully flowed down into the opposite direction she was going, the spaced in between filled out by lushly green grass. On the horizon she could see the bridge where the finish line was located. The first racers probably had reached it already, but Gina didn't care in the least about the race anymore. The only reason she had kept driving down the road at first was out of bewilderment for her sudden growth spurt left her so perplexed she had mindlessly continued to pedal. By the point she reached the river her mind was a bit clearer, but she still rode her bike as she was afraid to fall forward and end up immobilized on her breasts if she stopped it. As most of her bosom's top was revealed in her cleavage, the rip being roughly a foot deep Gina felt the consistence of her shirt giving away at the sides of her breasts, becoming even more transparent around them. Into the constant noise of stretching fabric she could hear out some rips as the stitching breached its limits. Looking up to the sky Gina closed her eyes, trying to ignore as the front of her bust pressed against the handlebars of her bike. She straightened her back a little, but this way her meanwhile pumpkin-sized meat balls were brushing her arms again. Fumbling with the position of her body she eventually found one where her breasts neither came into contact with her arms nor the handlebars. 

For around five seconds.

Then she could feel them pressing against both.

"God damn it, I wish this shit would finally stop!", Gina yelled into the sky, sitting up slightly. With the extra weight on her chest however she lost her balance for a moment, making her turn to the left and drive into the grass. "Woah!" Quickly she stirred back and returned to the road just before she could drive into the river. Her little trip into the green had whirled up some grass, as well as a few other small plants. One of them was a four-leaved clover. And to the stem of this clover that was flying through the air a small creature in green clothes with a big top hat was clinging, looking like a tiny old man. 

"Eh?", Heyrn said, rubbing his ear with his wrinkly hand. "I wish this shirt would finally pop? Jeez, people this age are very creative when it comes to wishes about their breasts." With a snap of his finger he sent a wave of magical energy towards Gina. The invisible arcane force engulfed the panting woman on the bike. Suddenly her breathing accelerated, Gina almost hyperventilating and her heart nearly skipping a beat as the tingle in her chest was getting stronger again. "Ohnononono!!", she screamed, feeling the fabric tautening around her bosom even faster. Agitated by the leprechaun's magic the swelling masses of flesh inside her shirt sped up their growth once again, gaining a centimeter of circumference every second. The rip in her collar tore down the lower slope of her bosom, the fabric softly gliding over her bulging curves and revealing the bright skin of roughly half of her bosom in a V-shaped excerpt. Pressing against her arms and her bike Gina found it increasingly hard to manoeuvre, making her grateful she was riding a straight even track. Steadily her swelling orbs engulfed her arms and handlebars, but as they were eager to keep their spherical shape they also pressed her arms aside while pressing Gina backwards, the space between her arms, body and bike getting limited. Despite their firmness the squeezed meat balls pressed a bit more against her lower chest wall and the hem of her top that was gradually gliding towards the bottom of her bosom, leaving her whole middle section uncovered. As her cleavage graced the underside of her chin she lifted her butt from the seat and raised her head so much she couldn't feel the rising masses of flesh on her face anymore. Leaning forward like this increased the pressure on her arms and bike though, her hands slowly sliding towards the edges of the handlebars. 

Gina moaned loudly, praying to wake up soon. The weight of her bosom tore on her back, forcing her to pedal faster and harder not to drop speed. "Where are my boobs getting all that mass from anyway?", she wondered for a second, before all her thoughts froze as she the stretching noise of her fabric was drowned for a second by a loud rip. It was even louder than the constant tearing of her cleavage when her right breast forced a large hole into the side of her shirt. The shape of the tear resembled an eye, though at its size it would have only been able to belong to a whale or dinosaur. Exposing almost the entire flank of her right breast only a small part of it was still hidden beneath a thin layer of fabric. On the top there was barely one centimeter of fabric between the tear and her V-neck, the distance shrinking as the growth forced both to extend. At her other breast meanwhile Gina could feel a smaller rip forming, around the same form as that on her right, but only slightly bigger than a normal human eye. However just after it had appeared Gina could hear another rip and feel a tear forming near the center of her chest, followed by one at the edge, showing a part of her armpit. More chills went down her spine as the fabric gave in on underside of her breasts, creating a slightly larger hole, and a second later two more rips formed on the front, very closely to her intimidate areas. One by one the holes were forming all around her left breast, revealing various spots on it. As her top asynchronously broke apart around both breasts her flesh kept surging outwards and squeezed through the holes, widening them bit by bit. Simultaneously the hem of her shirt reached the lowest part of her bosom. Slowly it was pulled up the bottom of her protruding bust, revealing a rising amount of under-cleavage. Growing to the size of beach balls Gina felt her breasts at her chin again and tried to lean up even further, practically standing on her bike. Her palms no longer could embrace the handlebars as her bosom pressed her arms aside. She tried to keep her fingers around it, but they were constantly sliding off. "Make it stop!", she pleaded.

Meanwhile on the parallel road, a bit ahead of Gina's position, three cars were driving with high speed into her direction. Two of them were police cars that hunted the third, a black Mercedes. ...Are they still after us?", the driver of the Mercedes asked. The co-driver leaned his head out of the window and looked behind them. 

"Yeah, two cars!", the co-driver said. "And they're catching up!"

"Damn it, we must get rid of the loot!", the driver shouted. "Throw it out and memorize the street! We'll search it later." 

The co-driver took a small item from the backseat, an old Japanese scroll, and quickly threw out of the window. At the same time Gina, still occupied with her growing bosom felt a strong wind blowing hitting her from the front as the Mercedes passed her, followed by the two police cars with running sirens. Her bike shook a little, but the weight of her bosom kept it relatively stable. Before Gina could even wonder what that was about the scroll suddenly landed on the surface of her bosom. The young woman blinked at the piece of paper as it unrolled itself, lying face-down towards her breast. "I have a bad feeling about this", she murmured. 

Suddenly the paper shined in a bright light. Again Gina felt the swelling sensation in her chest getting more intense, going around her giant beach balls and making them tingle even more. "Oh screw it all, I don't even care anymore", she sighed. As the light of the scroll faded the helpless Gina put her head back and rolled up her eyes as she felt her breasts surging outwards even faster, their circumference extending by several inches in a few seconds. Swelling swiftly into increasingly gargantuan dimensions her mounds pressed with growing force against the bike and her body. Bit by bit her cleavage swallowed her chin and lower face while rising up into her sight, the scroll slowly sliding off the bulging slopes. Flesh continued to squirm around her arms, pushing her fingers to the very edge of the handlebars. At the same time her bust pressed her body backwards and straightened her back as her bike hindered their forward movement, forcing gradually more of her bosom into her view. All around she could hear the ripping of fabric getting louder and more constant as her meat buns tried to squeeze through every possible tear. The side of her left breast was steadily revealed as the numerous rips enlarged, growing beyond the size of her hands, and new ones kept popping up. While her cleavage tore down very fast, quickly moving over the lower ascent of her bust the rip on her right breast spread out over its entire side, leaving only a fine rim of fabric that separated it from her V-neck as well as the fabric on the underside to hide its firm charm. Rising upwards the hem of her shirt was steadily coming closer to the point where her under-cleavage would be visible not only when looking at her breasts from the ground. On the fabric that still covered her lower cleavage a small bump suddenly appeared, moving towards the hem of her shirt with every jiggle her bust made. The bump revealed itself to be the small cell phone as it fell out of her top, hitting the bike once more before it landed on the street, left behind and forgotten by Gina already.

Once each of her spheres had the diameter of a hula hoop on its widest parts she eventually couldn't hold her fingers at place anymore: While dropping her butt back on the seat of her bike Gina let go of the handlebars. Spreading her arms out from her body so they wouldn't touch her sensitive skin the entire bike trembled as she released her tremendous bust on it. Immediately she fell a little forward on her breasts, compressing them as much as their firm structure would allow it. As her bosom bulged out a little in the instant her body fell on it the scroll was thrown off from it, landing on the street and being left behind like the phone. The young woman hopped on her meaty mountains as the flesh wobbled under her weight, while her head sunk a little deeper into the canyon of cleavage they created, pushing her back gradually into a straighter position as they rapidly blew up in size. Only the pressure her bosom created on the stirring wheel kept the bike from going out of control, the front wheel shaking slightly and making her drive in a slight zigzag, but still leading her bike in a relatively straight line forward. Since her body was lying on them her breasts got pressed a little more into an oval shape, increasing more in width then in length. As the diameter of her orbs was forcefully extended like this the tears in her shirt ripped up even faster. The vast hole on her right breast quickly reached the hem of her top that meanwhile was sliding up the lower ascent of her bust, showing the firm underside of her breasts from front and side perspective. On her left breast the growing tears began to unite, freeing more and more of her constricted bosom flesh. Slowly the numerous holes turned into three large rips, one triangle-shaped near the tip of her cleavage and two roughly round tears behind it. Two rips later and they fused to one giant hole like the one on her right breast, revealing the entire left flank of her bosom from the front to its origin. Her V-neck meanwhile had almost reached the end of her shirt, the remnants of her top sliding up and uncovering even more of her bosom's underside. As her cleavage reached he hem of her top, only a small amount of fabric keeping it from tearing apart the crossing point of the three rips and her under-cleavage was in the exact middle of her bosom. Like this her shirt had turned into four threads that united at the center of her chest, forming an X over her bosom. Of course it didn't do anything like that to cover something of her, leaving her constantly growing bean bag breasts basically bare to stare at. 

As it seemed like the poor leftovers of her racer shirt were about to be destroyed completely another tear suddenly went over her strained back. Quickly the fabric ripped from top to bottom, separating the fifty-five into two fives as her top split apart. With her bust pulling the fabric forward the sleeves glided down to the elbows of Gina's outstretched arms before they disintegrated as well, leaving no intact part to hold her "shirt" on her body. Without anything to keep the fabric cross in place it simply glided down the slopes of her bust and fell over the steering rod down to the front wheel, getting caught up in its spokes. Luckily they were too sparse and loose to stop it from turning, but Gina did feel like she hit a bump every time the fabric landed below the wheel. She was sitting completely upright on her bike by then as her breasts had forced her into this position, the top of her bulges reaching up to her forehead and blocking her sight completely. Though she couldn't see the handlebars anymore she could feel them as her flesh had engulfed them almost completely, holding them tightly in their grip. She also felt her breasts pressing on her thighs, making it harder and harder to pedal the larger they became. Gina panted heavily, but her breath was swallowed by her immense cleavage that tightly squeezed on her face, her sweaty cheeks sticking to the firm curves. 

Despite her ears getting blocked by flesh as well she could hear the loud cheering of a crowd, indicating she was reaching the finishing line. They were close, but probably too busy celebrating the victors as to take notice of the girl that came in last. For a moment she thought about stopping right where she was, turn around somehow and ride as far away as possible so she would spare herself the shame and embarrassment of showing off her top-naked über-busty growing self in front of dozens of people. But her legs were numb, her back hurt, she wore nothing above her belt line and her whole body had basically been reduced to be a holder for her ballooning bosom. She could hardly imagine things to get worse if she showed herself to a bunch of strangers. If anything however, even if it was nothing but stubborn pride, at least she wanted to finish this race, last place and giant boobs or not! 

With one last rush of power she put everything she had left into pedaling. Her thighs rubbed over the still bulging undersides of her breasts, pressing deeper and deeper into their firm flesh. Feeling her butt sliding over the seat as her bosom pushed her back she embraced the giant stacks of meat with her arms, trying to compress them as much as she could. Coming closer to the finishing line she could hear the noise from the crowd getting louder. After a while however she noticed the number of voices that cheered was going down, and though she couldn't see anything in front of her but the meat of her assets she could almost feel the glances that were thrown at her. Her entire head vanished into darkness as she shoved her blushing face deeply into her cleavage, pumping her last resorts of strength into her legs. The bike quaked miserably, even squealing slightly as the metal began to give in to the weight of her breasts. Gina even believed to feel the handlebars bending under her flesh. Pulling her arms closer around her breasts she tried to squeeze them a bit more together. The sheer mass of tissue gradually pushed her from her seat, the young woman barely sitting on the bike anymore. Slowly all the voices turned quite, indicating Gina constantly more people noticed the biking pair of breasts that was her, which meant she was getting to the goal. "Just a little more", she whispered, though her voice was so muffled she could barely hear herself. "Just... a bit..." 

Suddenly Gina shrieked loudly into her breasts as she felt the bike giving away beneath her. The front broke off from the rest of the bike while everything beneath her was falling apart into its individual pieces. With the clear weight center of her body being her breasts Gina fell forward on top of them, the massive mammaries burying some parts of her broken bike beneath them. The young woman moaned as the rest of her body bounced on top of her flesh, squirming it into an oval shape before their firmness made them rebound into a pair of round orbs, the whole process repeating until all energy from the impact had been transferred to the ground and the air, leaving her breasts slightly compressed as Gina lay on them. Her arms were hanging over the sides, slightly pressing into them, while her head was hidden somewhere between the orbs. Her legs didn't touch the ground, but simply rested on her breasts, her feet slightly pointing upwards. For a moment it looked like she was dead, only the swelling of her bosom indicating she was still among the living.

Reaching the size of small weather balloons her breasts began to slow down their expansion. After they had settled at a size that could only be described as impossibly huge Gina's arms suddenly rose into the air, before her hands fell down again and pressed into her bosom. With some effort Gina pulled out her head from her cleavage. Immediately she took in a deep breath, hyperventilating a little as she smelled fresh air again since quite some time. "Phew!", she sighed, happy she wasn't hurt although her bike had just fallen apart beneath her. Luckily her bosom had worked like an airbag and saved her from any grave injuries. Still though, feeling her firm flesh under her fingers Gina didn't really feel comfortable with them despite their cushioning effect, the young woman tracing her arms over her vast curvature while looking over them as far as she could. From one flank to the next her bust was seven to eight times wider than her waist, the diameter of each sphere being far larger than she was tall. Nothing of her touched the ground anymore except for her bosom, the rest of her body lying horizontally on top of her gigantic breasts. Though they were squeezed down like this slightly and her arms sunk a little into their meat as they moved over them they still were incredibly round and firm, standing off from her body like a pair of giant rubber balls. Gazing at her mammoth bust Gina suddenly noticed the shadows around her. Looking up she found to be surrounded by all kinds of people: Children with their mothers, teenagers of both genders, other bikers in their racer shirts and men and women of all ages were crowding around her. And though the look in their faces varied slightly from disbelief to arousal and disgust, they all shared that general expression of shock as they stared at her with open mouths. 

The blood was running into Gina's face, making her head shine like a tomato. But as she looked around her she realized that she was lying on the bridge. Quickly she turned her head. A few feet behind her she could vaguely see a red line being painted from one side of the street to the next where the bridge began. 

As she turned her glance back towards the people in front of her she couldn't help but smile shyly at them. "Um, does the last one get a... well, booby price?"