Mephisto was sitting in the throne in his infernal lair, observing through a mystic portal. The perception filter was useless against him. He could gaze into the soul of mortals and see their true identity. He took a special interest in the supposedly virtuous ones known as "superheroes" and delighted in corrupting them, and Susan Storm was supposedly one of the purest. But here she was, disguising herself as a fetish harlot!
He snapped his fingers and one of his succubi appeared at his side. "Pleasure me!", he commanded. She dropped to her knees and immediately deep-throated his massive scarlet cock. He grinned as he turned his attention back to the latex-clad heroine as she sped through the New York night.
"Now then, this is MOST intriguing. What shall we do with this new Susan Storm?"