She is cursed by Zant

Zant had always been a greedy man who lusted after power. But while he may have lusted after power above all else, that was not the only thing he lusted after. For years he had longed to see Midna, Princess of the Twilight, naked and at his mercy.

And with the power of his god behind him, that day had finally come.

"This is your last chance, dear Midna," he said, divine power flowing through him. "Kneel and serve me, or you will be knelt."

Midna bit a perfectly formed lip and scowled. She had seen a fraction of what he could do that day, she knew that she was outmatched, but she was proud. "Never, usurper. Traitor. This realm is mine. These people are my people, and I will not abandon them to you. Kill me if you must, but as I live, I will not kneel!"

Zant's moist lips split into a smile, grateful for her choice, for her unyielding pride. "We shall see." He raised an arm and picked one out of the countless delicious curses he knew.

But which one would suit the Twilight Princess best? Perhaps a curse of compulsive stripping that made it impossible for her to wear clothes? Or perhaps a curse of exhibitionism, that would **** the proud Twili to desire, above all else, to be seen naked? Or perhaps something else entirely?

He laughed cruelly. No matter what he decided, she would suffer, she would yield, and he would laugh.