I'm looking to read some erotic and sexual stories, and I was wondering is there is a dedicated site for hosting, uploading and reading such stories?

I don't know one, you can find writers on Inkbunny.

My recommendation is birdpup, he is more focused on m/m but there are some m/f.

https://inkbunny.net/gallery/Birdpup

I don't know of any sites but hentai foundry allows stories on there.

Archive of Our Own is just stories, SoFurry is largely stories.

not-me said:
I'm looking to read some erotic and sexual stories, and I was wondering is there is a dedicated site for hosting, uploading and reading such stories?

Sofurry is probably what you're looking for if you're looking for furry stuff. There's also Literotica which is mostly human focused but furry and non-human stuff is also easily found.