Running A Broken Upgrade

He'd always been top of his class, would win every race and would constantly break every record he could. He was the best of the best. But to him, that still wasn't good enough. He needed to be peak, the biggest runner the world had ever known. So when he heard rumours of the mystery race track, hidden away with a secret, he knew he had a way to his next upgrade. It took him some time to find it, but when he did he was sure, there was something special there.

It was completely abandoned and clearly had so rarely been used some of the original pair could be seen in it's most covered places. What really told him it was special though, was how perfect it still was. Worn down by time, but not destroyed. Even grass seemed to refuse to sully it's paths. And while he stood on it, he could feel it's energy flowing up to him. Now all he had to do, was show it he was worthy.

So he ran. Ran as hard and as fast as he could, for as long as he could. Even when he felt the urge to collapse, the feeling he got from this place told him if he kept going, it would reward him big time. With one final lap, he pushed to the finish line one last time and a ringing sounded through the air. He could feel it in his body, it was time!

His muscles filled with strength, his limbs moved easier and quicker then before, his lost stamina started to refill, and his breasts peeked out from his shirt, pushing away the jacket.

Wait, his what? He looked down, continuing to run on autopilot as he noticed the upgrades seem to have also changed him into a woman? She pondered this could be a problem, but then reconsidered. Tomboys were known for their spectacular physical feats, so it would only be logical that she would become one to become even better. While not what she expected, she was not adverse to it.

That is, until the sound of another ringing went through the air, this time a lot... stranger, like a dented bell. She wondered what could possibly be left to upgrade, when a sudden rush pushed her chest forward. She was worried she might stumble and fall from the sudden shift, but her body was so perfect now it could handle any disturbance and continue automatically without he needing to interrupt. She looked down to her chest and watched in awe as her newly gained breasts started to push further and further out.

She stumbled a bit more, but her body got back on track and continued along all while she examined herself closely. She realised something was wrong, but was so distracted(attracted) to the sudden surge of bust size it didn't occur to her to stop running. That is, until the second dented ring went off, and her breasts started to surge forth again. And then another ring, then another, then another, a constant sound of a dented bell going off, all followed by her bust rapidly gaining in size!

The track was broken! Not physically, but in the way it worked and helped people to get better. The upgrades it provided seemed good, until it ran through the physical stats it needed to upgrade, at which point, it would get stuck upgrading one. Over and over and over. In her case, it seems to have decided, her charisma needed a big upgrade!

She stumbled again, this time enough for her body to actually respond to her as she started to slow herself down and try to run to the way out. Unfortunately for her, it was all the way on the opposite side of the track and with the rate the ringing was going, she might not be able to run for too much longer. Since no matter how much her strength, her dexterity and her constitution was improved, they all lacked in what was her quickly growing 'charisma'. She was already the best runner, but if she didn't get out soon, she'd also be the 'biggest' in a way she didn't want.

But at least, she would be VERY popular.

***

A bit of tomboy tg fun, with a twist. Seems she'll get what she wanted and seemed quite fine with the new gender, but I'm not sure how much charisma a runner needs to succeed. Possibly a bit less then she'll end off with, assuming she even gets off the track in time. :)

Not quite as complicated a draw, but a nice sized story to pad it out. The reaction had a few different looks to it, so you might notice that the lineart and color version have slightly different variations. Had to eventually just get on with it though or I would have been drawing mouths and eyes forever, so this is what I went with.

Anywho, enjoy! :)