Prologue: Creation

Multiple tears in space have linked Earth to other worlds! Fantasy worlds!
Magic! Elves! Dragons! Fairy tales! You name it.
Through months of evaluation, it has been decided by world leaders that all most intelligent species of these other worlds are amicable, and will be allowed to roam Earth. And, Earthlings will be able to roam the other worlds. Furthermore, they also seem to have technology similar to, and compatible with, human tech!
And what does this lead to?
"Hey, did you hear? Kevin got with a valkyrie."
"Really? I thought he would've gone for a nymph."
"Nah, he's an M. He likes a woman who's in control."
Romance of course!

ONC 2021 Prompt 21