Catherine was for all intents and purposes a pretty chubby homely girl. She liked to believe there was a cute girl inside, and maybe with puberty she all the excess body weight would shift and make her so hot everyone could barely keep their hands off her. Currently at 12 she was hoping puberty and growth spurts would come, but if she were to look towards her mother and father she would notice that her family had a real easy time gaining weight and a very hard time losing it. With proper diet and exercise it could help, but with what her family ate for dinner exercise would only do so much. It also wasn't like she could just stop eating now that her growth spurts would be starting soon.
Catherine sighed as she walked back home from school. She had a friend or two, but they lived in the opposite direction than she did. She wasn't really picked on which was nice, but very few tended to look in her direction for long either. That particular day though she would be granted her wish of turning into a hot bombshell though. As she was turning a corner into an Alleyway someone carrying a special highly experimental topical drug was sprinting with the stolen merchandise. Was he going to go to his hideout and apply the drug to himself in the hope of getting superpowers? Was he going to a buyer to sell the drug? Was he going to put it in sandwiches and feed it to the homeless? No one would ever really know now as the two ran into each other, and the drug smooshed into Catherine's mass and the container broke smearing it over Catherine's clothes.
The thug said "Now look what you did! You cost-" The drug quickly seeped into Catherine's skin and worked it's highly experimental magic. Catherine felt an odd sensation that quickly turned into a nice warm heat, her sore bottom stopped feeling so sore, and- She opened her eyes and saw around her was a hot fire. That thug who had bumped into her... Well she didn't see him anywhere but she did see some dust... or ash...
Catherine panicked as she noticed that she was currently in the middle of the fire and looked to herself and saw... Her arm... It was so thin and slender... and her... Wow she knew she had been getting some fat boobage but those were some nice big firm breasts from what you'd find on supermodels. She picked herself up off the ground and noticed she felt taller. Whatever that drug did had not only reduced her weight, but also made her grow taller and into a rather "mature" looking woman... and then more reality began to sank in. She felt warm so she guessed she had been given some sort of fire or heat emitting super power that just wouldn't turn off. Then she remembered that she wasn't currently in the Alley and being on fire kind of drew people's eyes plus the fire had incinerated her clothing and backpack so she was naked... Although while she could see through the flames normal people couldn't because of all the heat coloration and air distortion effects. But even worse was that all her homework assignments and textbooks burnt up!.. Was that even a big concern right now? Mentally 12 Catherine the gorgeous woman on fire took a step back and her foot rested on the road and she was confused when she heard some sort of bubbling sound and look down to her feet and she saw the road melting into tar. Thinking about all the strange stuff she'd seen on the News that reported on hero activity she quickly thought that she could easily be considered some sort of monster of villain.
At the top of her lungs she shouted out in her deep mature voice "COULD ANYONE CALL A HERO OR FIRE DEPARTMENT!?! I DON'T KNOW WHAT I'M DOING! HELP!!!" although most people were already running away. In a strange way puberty had left her as a bombshell people could barely keep their hands off. If she weren't on fire some types would probably get a little touchy freely, but most of those types weren't stupid enough to try coping a feel if they'd pay the price by instantly being incinerated. The real question for Catherine was what her imminent fate would be?