The concept above is based on what was supposedly Chris Claremont's plan to have Mystique and Destiny (Irene Adler) be Nightcrawler's actual parents. Supposedly, the two were lovers and Mystique shape-shifted into a male form and impregnated Destiny, and their offspring was Nightcrawler. Of course, the idea was nixed, because Mystique producing sperm by transforming into a male was deemed too far-fetched.
