X-Men Forever #17

Rogue has absorbed Nightcrawler's powers and is now blue and fuzzy while Kurt looks human for the first time in his life. They try to adjust to their new forms as they attempt to save people from a burning building. With no idea when (or if) they will revert back to normal, Nightcrawler and Rogue try to figure out the future and how they will deal with their mother, Mystique.