TELL ME ABOUT THE VAMPIRE AU!!!
*rubs hands together* okay, so i've actually gotten a lot of interest for this before and i'm still thinking about writing BUT, it's based on a manga called devil's line (acquired taste i feel).
i wanted to transpose eren's hatred of titans onto something, which now is vampires. in this society, vampires are just like normal humans except that they go into intense bloodlust when they smell blood, which causes they to do bonkers things to drink blood. eren and mikasa are part of this police unit that's responsible for investigating cases relating to homocides that may have been comitted by vampires. they're partners, been partners for a long time now (having grown up together too), and there's. feelings.
basically, through some handwaving and plot thingy, mikasa—who's never reacted to blood before—somehow, one day while they're on a case, mikasa somehow develops this bloodlust while they walking away from the crime scene, and she just stares at eren, cheeks red, pupils blown wide open, and then jumps him, teeth elongating and all those scary vampire stuff, you know the drill.
jist of it is that i wanted to explore what happens when mikasa turns into something he's supposed to hate, mikasa's own feelings of guilt about feeding on his blood (there's no cure, but there is a way out of going feral every time she smells blood, and eren insists on helping, more at 7 on your local news channel), and how they both navigate this new, changed relationship, as well as the tiptoeing around each other about how they want to fuck (cue eyeroll cause they're both fucking losers that don't know how to say what they want)