They always figure things out, sooner or later. As long as they're together, and have time, nothing can stop them.

Erwin grunts softly and squirms upwards at Levi's instructions. Levi could tell him to do almost anything right now, and Erwin would obey without question. It's not often that he gets to let go like this, to let someone else take the reins and guide him; it's so hard for him to cede control. There needs to be a deep trust built up for him to even consider it. With Levi, like this, it comes naturally, without Erwin even thinking about it.

He pants, open-mouthed, into Levi's ear as Levi swears quietly and then gets his hand inside Erwin's pants. The feel of his hand on him has Erwin shuddering, his entire body gone tight and aching with need, and it's a physical battle to not explode immediately.

Then Levi starts urging him onward, and Erwin is rendered helpless, all his resistances crumbling like sandcastles built along the shore.

"Levi, I'm... I'm..."

That's all the warning Levi is going to get, before Erwin is shivering helplessly and coming into his hand.