Perhaps in time he'll come to care less about some of these particular things - it isn't as though he can't tolerate any amount of cross contamination for a time. Levi has spent days in the dirt and the mud before, in clothes sticky and crusted with blood. It'd been just a fact of life when out on expedition. But he's also well aware of the things he can and can't control, and if he has reason and ability to lay out these boundaries, he will, so that at the very least he can decide when to cross them himself.

Not everyone understands it. Even with as patient as Finnick has been up to this point, there's no real telling when someone will try to push back, so it's only upon his easy acceptance and small promise that Levi feels that anxiety ease. Really, he shouldn't have worried, because he has noticed that Finnick always smells nice, and there's even something pleasant about the way the scent of the sea seems steeped into his skin.

That last little comment draws the faintest curve of the corners of his lips into something nearing a smile, though as ever, it's mostly in his eyes...perhaps a little smoldering now. The touch alights little tingles along nerves there, and Levi inhales a little more deeply to slightly arch into it, leaning forward.

"Yeah," he agrees lowly, tracing a thumb over Finnick's kiss-plush lips. "I like that about you."

And kisses him again briefly, just to prove the point.