Erwin might have no trouble with it, but from Levi's perspective, kissing or kissing with a dirty mouth is the same level of gross. He's acutely aware of where his mouth has been, and spreading it around is not something he's keen to do, no matter how badly he does just want to stay wrapped up with him like this.

But the water is already starting to wrinkle his fingertips, and he's fully aware of the splotch of jizz still lingering on his skin, too.

"No," he mutters, nosing back. "Won't enjoy it because 'll be too busy thinking about having dick-mouth."

He leans back, releasing Erwin so he can save is back from stooping at an awkward angle, but cups one hand (his clean one) against his husband's cheek, tracing lips with his thumb.

" 'sides...starting to shrivel up like a prune. Can't stay much longer in here anyway. So work fast 'n you'll be sticking your tongue in my mouth in no time."

Scrub down, Erwin!! Levi makes quick work of himself, rinsing out his mouth briefly under the spray and spitting into the drain before taking one more pass with soap and cloth over his body. He'll offer to do Erwin, too, if he wants (just for fun, y'know). Either way, once he gets out and towel dries enough, he'll rinse his mouth with water again, then with mouthwash, and then scrub with the toothbrush twice. And do another full rinse cycle again before he seems satisfied.