Petra: *sighs in relief* Aren't you tired, heichō?

Levi: Yeah. But I can't bring myself to sleep, even if I could.

Petra: What's on your mind?

Levi: *frowns* A lot of things, Petra. A lot of things.

Petra: Like what? *looks at his eyes while she continues rubbing his head in comfort*

Levi: *breathes in and relaxes on her lap* You...the squad...the Survey Corps...humanity...but you're...the only one occupying that part in my brain right now...

Petra: I'm flattered. *chuckles*

Levi: Is it fine? If I sleep, even for a little while?

Petra: Of course. You need to rest. *kisses his forehead and rubs his head again and again* Sleep, Levi. *smiles*

Levi: *exhales and his eyes close in relief*