One

A Dominos pizza guy and a Pizza Hut pizza guy deliver pizzas to a house at the same time. When the lady who orders the pizza tries to eat them, they escape into a magical dimension, where they have to travel across the Rainbow Inter-dimensional Bridge Of Space And Time (the RIBOSAT) to get home. Along with a random girl they meet along the way, they will have to survive the weirdness of this new reality.

This is not just going to be a one shot. This will be an actual story.

I don't own Dominos or Pizza Hut.

There will be terrible writing and weird stuff.
Read at your own risk.