I think I'll stick with Professor, if it's all the same to you.

[Rogue pauses herself, considering.] I'd like that. [How to tell him she was his student from the future? Perhaps when they met. Or... Not at all. But Alex knew. And if she ever ran into Magneto or Mystique, it would soon come to light.]

You've helped me once before. I'm sure you can do it again.