Okay so it's difficult to find.. go to Google, search up "nearest mental hosptial", go to that exact locations, and you have to tell them the secret pass code. The passcode is "I'd like to be on a lifetime program". They will ask you why, so just repeat what you typed here and anything else similar! Then they'll give you a lifetime supply of stuff like this!
Hdjskekf- my comment once more got cut off. I copied it before posting previous so I don't have to retype- hopefully this time it works.
""What I said (and hopefully it doesn't delete it again) was that I didn't seek out the nazi, I happened upon it. It was part of a collection of stories where the overall premise was "unconventional settings" and "rejected manuscripts." It had a lot of weird ideas, one including a man anthropomorphizing and fucking his electric fan.
I'll have to look for the anthology again.
FOUND IT!
there is no corpse fucking (thank god ) but chapter 9 has the Nazi shit for anyone else curious I guess
https://www.mangago.me/read-manga/dame_bl/

Hi fujoshis and fudanshis im here today to ask for 1940 yaoi ( nazi top and soviet bottom ) he killed him but realized hes hot and then he fucked his dead body (ω*) if you know it please send it. Kisses ♡´・ᴗ・`♡