[ To Scott's credit, he listened through everything Charles just said even when it's palpable on his face that shock is starting to leak out of him. Once the Professor drops the word Mystique, Scott's brain almost shortcircuits and couldn't focus on anything else after. Because the sound of alarm bells begin to ring in his head and it's all he can hear right now. ]

Wait did you just tell me your sister is Mystique, of all people?

[ His tone suggests that he can't mask his shock anymore, one hand lifting to pinch the bridge of his nose. ] She's a dangerous, manipulative mutant, almost as dangerous as Magneto. She attacked us, intent in disposing all of us, and she likes to interfere with the Institute's good work.

[ Scott stands up, exasperation beginning to leak from his tone. ] How can you - How is this - [ He sighs, the beginnings of a migraine starting to let itself known. ] This is news to me, Professor, and it's not a good one.