Megan stood at the starting line, ready and prepared. Her first big race of 2021. Looking to her sides, she saw the line of impressive looking women. Well-toned bodies, flat-chests and focused faces in tank tops and impossible short running shorts. She took a deep breath and honed in on the finish line - she was determined to reach it first. As she got in position, those last few seconds felt like minutes...

Bang! The gun went off with a loud bang, and the athletes were running. Their brightly colored trainers blurring as they did. Megan sprang into first place, and was maintaining it - it really looked like she was going to win! Her friends at the barrier cheering her on, onlookers in the stands cheering on everyone. 'I'm going to do it! I'm going to fucking do it!' That's all that was going through her mind. The adrenaline coursing through her veins, heightening her senses as she used all her muscles to propel herself further and faster than she had done ever before. She was a spectacle to watch. Her skin showing off each and every muscle contracting and her legs showing impressive reach as her figure glided over the track. 

Only seconds from the starting line she started to feel 'good'. Instead of the searing pain in her thighs and the hyper focus from the adrenaline, she instead felt warm. Megan let out a smile, she couldn't help it - warmth spread throughout her body, through her arms, legs, fingers and toes then retreated and settled in her chest. 'Is this it?!' Was she about to reach athletic nirvana. She felt like she was floating. The absence of searing pain in her thighs drove her further and further until she could feel her lungs burn with each breath. Her chest started to feel tighter and heavy, breathing became tougher.

Megan could see the finish line getting closer and closer, she dug deep and gathered everything she could to carry on. Her breathing however, became so labored she had to ease off. Half-way through the race she made a rookie mistake. She took her eye off the finish line. She glanced down at her feet, willing them to run faster. When she saw herself though, her mind raced with excitement and confusion. Her flat chest now replaced with full breasts, unhindered by sports bra or any restrictive clothing that were free to bounce in her tank top. They weren't the largest, but they were there. She could see them try to bounce with each step, and her nipples press firm against her top, top doing its best to keep her breasts against herself. Instinctively she slowed down and cupped herself with her hands. 'The fuck is happening?!' she thought, thankful they were breasts but bewildered by their appearance. Her pace dipping just enough for another runner to pass her - unaware of what was happening to Megan beneath her tank top.

After a life of having a flat chest, so many trips to the beach where she was never the center of attention, so many envious group photos with her friends and even more late nights wondering what it would be like to have them - now wasn't the time or place to appreciate them. As she cupped each breast neatly in her hands, she could feel softness, fullness and weight, her now stiff nipples push against her fingers the feeling of her grasping her breasts felt akin to rubbing herself as she had done last night. A wave of intense tingling spread across her entire body. She stumbled as it did, and that allowed her to take stock of where she was. She was only a few places behind, she could catch up - she thought.

Now Megan was aware of them, running felt very different. She could feel the pull against her skin each time her feet hit the floor, she could feel her nipples being dragged up and down against her tank top and it only seemed to get worse with each passing second. As much as she tried to focus on the runners ahead, the amount of training she had put into this, and finally the finish line - she couldn't. Each step only brought more unexpected pleasure, with heat enveloping her and her sexual organs. 'No, no no! Not fucking now!...'. That line repeated in her mind, she could feel herself giving way to it. Those thoughts creeping in from the back of her mind into plain view. Once she pictured her crush's cock between her new breasts she knew had lost. All the effort she had put into training for this race was lost. Gone. Wasted.

As she tried in vain to carry on running, she was sure she could feel her breasts start to bounce slightly under her top - The rhythmic pull on her chest hypnotic to her. Every movement she made only served to highlight her growing chest and moistening thighs. All she could think about was how she was going to use her new breasts when she got home. Screw the hospital. 'I'm fine' she said to herself, as she imagined going through her wardrobe to find the most revealing outfit. Another glance at her chest revealed they had grown even more since that first glance. 'Nothing's really wrong...' she said as she thought about running her vibrators over her new nipples. A third glance, they had grown more still. 'I just want to get naked' she moaned as she imagined herself straddling a gigantic cock watching her tits bounce in the mirror. After a fourth glance she could almost see them grow. Her tank top was getting tighter, and running out of room... 

The warmth began to fade, only to be replaced with deeply sexual tingling and a soft toe-curling pain. As she slowed to pull out of the race, she took another glance down at her chest. Her breasts were now pressed against her tank top, bulging out of the arm holes and pushing out so far they must be visible from underneath - or at least pushing her top very far away from her stomach. She stared, and saw the top becoming translucent through sweat beading on her skin. Those close by could see the outline of her areola getting darker, and those with camera phones could see her nipples protrude outwards like gumdrops. As Megan tried to pull her collar outward to look at her breasts in the flesh the dark veins protruding from her skin took her by surprise and she fell, landing on her back - saving her a painful experience.

Once she recovered, she lay there on the floor. Megan looked towards the crowd, then to her friends. Their concerned faces turn to open worry as they rush over the barriers to check on her. Megan looks towards the finish line, the race is over. She fell mere meters from the finish line. Had she not fell, she wouldn't have been last... She started to laugh at her situation. She's dreamed about something like this happening, written erotica and almost booked breast enlargement surgery. Never did she think it would happen like this - if at all. This wasn't a fantasy, this was real. What could she get away with with her new tits, it all raced through her mind.

She lay there, with the crowd transfixed on her breasts she couldn't help but feel the attention light a fire in her. She watched her breasts grow in front of her very eyes, slowly consuming her view. Her tank top started to stretch past its limits, tears started to appear everywhere. With an almighty rip her nipples poked through one of those tears and her breasts did the rest. They ripped the top open in half with their almighty weight, leaving only her shoulders and collar covered by the remaining fragments. With her bare breasts now exposed to the open air and free to move they fall to her side she let herself relax. She could feel them kiss the ground as they fell. The touch of her soft skin on the tough floor was a new sensation, she could feel each speck of gravel dig into her skin - it felt exhilarating. The breeze on her bare skin was familiar, but with so much more skin on show and nerves to tantalize it sent fire running through her body and mind. Megan tried to help herself by running her hands across her bare chest and quivered at the feeling. The other hand started to follow one of the new veins across her breast, finishing at the areola where a proud nipple that almost touched the floor was now being brought towards the sky thanks to the every growing breasts.

Abby finally reached Megan. "What the fuck do we do?!" Abby shouted to yet another friend. Abby had to touch Megan's breast to make sure she wasn't hallucinating. Megan let out an incredible moan, even at the wildly nonsexual touch of Abby's open palm on her skin. Suddenly a towel appeared and covered what little it could of Megan's breasts. Megan's mind was racing, all she felt was ecstasy. She slowly ran circles around her breasts with one hand, whilst the other made its way to her soaked running shorts. She could feel orgasm approaching. Just as she reached climax, she could see her friends and others covered in white and blue flashes of light. After trying to arch her back under the new weight of her breasts, and letting out a scream of pleasure, she felt the warm air of the ambulance surround her.

~~~

"So that's exactly what happened?"

"Yes, we pieced it together from our own accounts and first hand witnesses."

"Well done on getting there so quickly. You've been getting a bit or practice recently. And where is she now?"

"Quarantine."

"Her mental state?"

"No Change.