Fanta was born out of necessity. During WWII, Coke's supply chain was disrupted in Europe. The Coca - Cola Company in Germany had to be innovative. They used whatever fruit - based materials they could find around. And that's how Fanta started. It was first made and sold in Germany, and it quickly became popular as it offered a fruity and refreshing alternative at a time when traditional Coke wasn't an option.
Well, Fanta started in WWII. Coca - Cola had problems getting ingredients for its cola in Europe. They decided to make a new drink with local fruits, and that's the origin of Fanta.
Fanfiction can be created by a wide range of people. Anyone with an imagination and a passion for a particular fictional universe can take a stab at it.
There could be many different authors who created fanfictions with this concept. It's hard to pinpoint just one. Fanfiction is a vast world, and often these unique ideas are created by individual fans who are inspired by the Sonic franchise and want to put their own spin on it.
I have no idea who created the 'cumming story' as there's not enough information provided. It could be an amateur writer, a local storyteller, or even a group of people.