[ He takes quick showers because he doesn't know what else he's supposed to do in them, besides soap up, wash up, and leave. To his credit, this means that he never uses up all the hot water, but also that he always needs to shower before Charles does. ]

I'm meeting you in the middle.

[ But then he places his hands on Charles' chest, over his heart, feeling the warmth of him underneath. ]

You should take this off. It's soaked. You'll catch a cold if you wear it out of the shower.

[ This may or may not be a thinly-veiled excuse to get Charles naked, but if Charles isn't going to sexualize Erik's naked body, there needn't be a reason for Erik to sexualize Charles'. It's inconvenient for him to help him shower while he's dressed, and Erik's pretty sure his belt is real leather and his pants are real wool and those are awful things to get wet like this. ]

Promise I'll be good.

[ For whatever Erik's promises are worth. He does want to prove that he's just fine, but he can do that without attempting to flirt with the man again. In any case, he doesn't want to argue with Charles over how he is, medically. Erik's fine. His body is built to withstand all manners of scars, and Charles doesn't have to fuss, but Erik will let him because he likes it. ]