Actually, It was the Supernatural fandom...
There's omegaverse in SPN? When?
No the fandom invented the concept for a Destiel fic
Oh is that so, it seems I have some research to do, and some fac fics to read hehe. I was more into souless sam/dean or demon dean/Cas
I heard it was star trek
Actually it was invented long ago, I don't remember the fandom maybe Star Wars or Star Trek, but there were stories in which males who can get pregnant were called damsels. It was the original male pregnancy in fiction. Omegaverse came later with a much richer universe that it's always changing depending of the author.
Star Wars- First documented Mpreg
Star Trek - First Omegaverse
Supernatural, especially Destiel (which is WAY too recent in fandom terms) didn't start anything
Erm actually it's a response to the patriarchy and has a huge history behind it and Bl as a whole/j (⌐■-■)!!
But it's pretty much, what if men get pregnant through their ass like women do? And it would share properties of a vagina
I wonder if omegaverse came as a response to yaoi mangakas being criticized because they kept hearing "that's not how assholes work. You don't just get wet because you're a bottom". Then, these motherfuckers were like "you know what? We'll create a universe where this shit makes sense and you can all shove your criticism up your non-self-lubricating asses"