[Keith knows Shiro well enough to recognize that expression, to hear the fear in his voice, and oh he hates it, and hates being the one who dredged it up. But Shiro deserves to know, deserves to have the chance to do what he can to make sure there's no risk of anything of the sort happening here.

He reaches over and sets his hand atop Shiro's right, the cool metal beneath his fingers. Wherever this came from, it's still Shiro. And even if its too-close-to-literal evil twin gave him the scar on his face, he doesn't care.

A shake of his head.] Don't thank me. I think getting it checked is a good idea. But no matter what happens, no one is taking you away from -- from us -- [He amends quickly,] again.