This was a title, but I think it counts in spirit. It is 65k words, so I have to admire their commitment.
this summary is magical 'Howdy gang. I beat Luigi's Mansion 3 already what with getting laid off work due to, you know, the thing, so as you do, I immediately went to find some sweet sweet explicit Luigi x King Boo fanfic. Y'all have disappointed me, gang. There just ain't enough on this website. So here we are, trying to fix a problem I cannot understand.'
I just discovered that "Warning: Hojo (Compilation of FFVII)" is a canonized tag, and having played FF7, I respect this.
Okay, now I'm imagining the Ooh Mr. Darcy comic but with Eeyore instead of the lady whose name I don't remember.
Spoiler: I hope you're proud of yourself (Incidentally, when I was looking through the Pride and Prejudice tag which led to me stumbling onto this, I also saw a smutfic from a prompt taken from that comic.)
I know it is perhaps a tad narcissistic of me to keep sharing my own tags but I am frequently v proud of them okay
This is one where I'm genuinely not sure if I want context or if it's funnier without it. Either way, I am delighted.