Not a headcanon but how do you think the first eruri kiss happened?
Ah yes I have been wanting to tell my story on their first kiss thank you!
Erwin and Levi were sitting down one day at Erwin’s desk going over some paper work for the next expedition when Erwin seemed distracted and was staring at Levi. Now if theres one thing Levi hates it’s being stared at so he quickly nipped this in the bud, “what are you staring at Erwin?” Erwin retorted quickly and shook his head, “Oh sorry Levi, i must have been daydreaming… I didn’t know I was staring at you”. Levi isn’t convinced though, if theres one thing Erwin is good at it’s lying and teasing so he grabbed that handsome commanders face and kissed him slowly and passionately. Erwin was quick to respond back and pulled away after a while before panting trying to catch his breath, “what was… “ Levi couldn’t help but shrug and give his faint smile, “you looked like you were struggling to tell me to give you a kiss so i just did it for you” From then on Erwin never asks for kisses, he just gives them.