[ easy to miss for someone not erwin, and he tilts his head slightly to watch levi and catalogue his reactions further.

the question doesn't surprise him, but he doesn't have a canned answer ready. it always depends on the person, and he thinks he might, after a moment's thought, have an answer that would be satisfactory, at least for now. ]

Would you be more comfortable if we used a knife instead of my teeth? And that said, it doesn't have to be the neck. Personally, I find wrists more intimate than necks, but it can be easier for people new to the experience to nick an arm rather than feel that kind of pressure on their neck.