The False Prince and the True
The False Prince and the True is a story written by shukyou and illustrated by beili. It ran in Yes, And 5 at http://www.shousetsubangbang.com/mirror/the-false-prince-and-the-true/.
When a nobleman is scheduled to die for striking the prince, he learns that neither the prince, nor the witch who offers her help, nor he himself is exactly what they believe themselves to be.
This is a somewhat outlandish, bisexual retelling of The False Prince and the True, a Portuguese fairy tale.