Multiple links to same post or page

I would like to know if it is possible to have multiple URLs point to the same page or post with no 301 or 307 redirection.
For example, I have https://www.mysite.com/my-nice-post
And I would like to have temporary links for sharing it like:
https://www.mysite.com/nice-post
https://www.mysite.com/interesting-post
And have them actually show the content of https://www.mysite.com/my-nice-post but without disclosing the URL of it (i.e. no redirection).
I know I can duplicate the post or page in question with those URLs but I find it impractical to have many copies of the page or post in question if I need 100s of temporary links. I don’t care about SEO as the temporary URLs do not need to be indexed.
Is this possible somehow?? I found many plugins (like for affiliate links) but they all redirect the URL ??