AN: Ever since I saw the episode, The Cissy, I've always been fascinated with the idea that Stan might be a trans girl or NB. Even thought it was probably a one time thing used for a joke and didn't go anywhere, I still loved the concept. I hope this fic does it justice.

Rating: M for language, juvenile humor, and sexual content

Disclaimer: South Park and its characters belong to Matt Stone and Trey Parker and Comedy Central.

Pairings: Stan/Kyle & Wendy/Cartman

Once upon a time in the land of Zaron, lived a young seventeen-year-old prince named Stan Marsh. Stan was very much like the other noble lads his age. He was a trained swordsman, he liked music, and he liked to ride and hunt alongside his trusted hound, Sparky. Stan was not next in line for the throne. No, that honor went to his older sister, Princess Shelly, an ogress of a lady who was as ruthless as she was cunning.

Stan's closest friend was Prince Kyle of Larnion. Larnion was Zaron's closest ally, and Stan spent much of his childhood as a ward to the king and queen. During his time there, he had forged a bond of friendship with the crown prince that lasted the years. Even after Prince Stan returned to Zaron, he and Kyle maintained contact via couriers and messenger birds. Unfortunately, as heir to the throne, Kyle had many duties that Stan did not, and it grew ever more difficult to keep in touch with his friend.

So, when Stan had received word that Kyle's procession would make a visit to the castle of Zaron, Stan had been delighted. Prince Stan kept a well-hidden and terrible secret. It all started when the young prince was only beginning to grow out of his childhood body and take the first changes to becoming a man. When he was twelve, he secretly wanted to be a girl. At the time, he thought it was a silly fantasy and kept it well to himself. But, over time, the changes in his body felt just wrong, and it only got worse as he grew more and more. Many times, Prince Stan would look into the mirror and just hate what he was becoming. He felt that he could only confide in his dear friend. Kyle had always been the voice of reason, the responsible one. He would know what to do.

Our story truly begins when the two princes were on a walk in the gardens.

"My parents want me to arrange a match between Ike and Shelly," said Kyle.

"Ugh, do they hate him that much?" asked Stan, making a face.

"Zaron is Larnion's closest ally, and our parents are close friends," said Kyle. "It would be a dream for them if they could match one pair of their children."

"Poor Ike."

"It doesn't look like it's going to happen. Ike is a foundling, and I know your parents would prefer to match Shelly with a blood relative."

It was true. In Kyle's kingdom, foundlings were considered full members of the family and were perfectly able to inherit property and titles from the family that adopted them, though children by blood had priority. This was not true for Zaron. No doubt negotiations would be awkward. Stan could imagine his parents trying to draft up the most polite refusal they could.

"And you wouldn't be able to…" Stand imagined Kyle and Shelly getting married and abruptly felt sick.

"We're both next in line to the throne. It would cause a host of succession problems." Kyle sighed. "You know, you should really pay attention. If anything happened to Shelly, you could be ruling the kingdom someday."

"All right, all right," said Stan. "I won't leave you alone while you deal with politics."

"I'm also supposed to be looking for a bride for myself."

Stan should not have been surprised at that. Of course, it would be Kyle's duty to find a queen. "Do you have someone in mind?"

"My parents found a few matches for me, but I'm also still looking."

Stan nodded. This was a custom that both their kingdoms shared. When the crown prince or princess turned fifteen, they were given some of the responsibilities of the king and queen. This included arranging a marriage for themselves, though the king and queen could refuse any proposal they made. Shelly had been very headstrong in that regard and had not made getting married a priority. Maybe Stan should prepare for the throne after all.

"I remember you being very popular at court," said Stan. He remembered them all. Lady Rebecca, Lady Bebe, and Lady Heidi had all courted Prince Kyle when he and Stan were growing up in court. Kyle had returned their flirtations, but went no further with any of them. He had been very concerned about protecting their virtue. Stan had only known one, and neither of them had really cared about propriety.

"Did you ever find out what happened to Wendy Testaberger?" asked Stan. Their relationship did not last long after Stan returned to Zaron. Stan had abruptly received a message from her, breaking off their courtship. He later found out that she had ran away from home. That was two years ago, and, though Stan had been very depressed and despondent at the time, his feelings and heartache had simmered down immensely.

Kyle shook his head. "At this point, Count Testaberger and his wife had considered taking in a foundling just so they could have someone to pass their title to, but neither of them really have the heart to do it."

They walked some more. It was getting late, and Stan was getting more and more anxious about coming forward with his problem. "Kyle, can I talk to you about something?"

"Of course, we're friends."

In hushed whispers, Stan did his best to explain to his friend what had plagued him all those years. He did his best he could to explain the wrongness he felt inside that only got worse as time went by.

"I mean, just imagine one day you look at yourself in the mirror and found that you have boobs now." This was the closest Stan got to telling Kyle about his childhood wish of being a girl instead. He couldn't bring himself to admit that to anyone.

Luckily, to Stan's relief, Kyle just listened intently without judgement. Stan saw the contemplative look in his friend's face, and he could practically hear the wheels turning.

"I think I've gone crazy," said Stan.

"Stan," said Kyle. "I've known you since we were children. I don't think you're crazy. I'll have my scribe search the library back home to see if we can find any other cases of what you are going through."

"You mean it?" Stan had been so embarrassed to ask anyone. If anyone could figure this out, it would be Kyle.

"Of course."

Stan sighed with relief. "Thank you." Stan felt that finally talking about it with someone made him feel better about himself. He walked back to the castle with Kyle in a much lighter mood.

One month earlier
Princess Shelly was practicing magic in her private study. A messenger had just arrived with the scroll she had ordered, and she was very eager to try that new spell. The spell of prophecy seemed very simple. All she needed to do was recite the incantation on the scroll in front of a wall mirror and ask it a question.

Shelly hung the mirror and locked the door. When she was sure she was safe, she read aloud the incantation, which was written in a language ancient to Zaron, spoken only by those who still practiced the old ways.

"Mirror, mirror of prophecy
Arise, arise and hear my plea.
One question I have and one alone
How shall it fare when I take the throne?"

The room darkened. Her reflection in the mirror blurred and twisted on itself until all that remained was a writhing swirl of color. A voice rang out in the darkness.

"Princess, your reign shall not be so
For your path is beset with woe.
By your younger sister are you undone.
She shall strike you down before you've begun."

Shelly was furious. Even more frustrating was the fact that she had no younger sister. Her only sibling was that turd, Stan. She was absolutely determined what the mirror meant by "younger sister". For the next month, she tried both magic and mundane methods to find out if either of her parents had a secret bastard daughter somewhere. None of her searches came up with anything.

As the month passed with no other information on who her younger "sister" might be, Shelly grew ever more paranoid. It suddenly dawned on her that her younger "sister" could be referring to a sister-in-law. She would take no chances. She had to kill her younger brother before he had a chance to marry.

She set up a plan while Prince Kyle from Larion was visiting. She knew very well how close Prince Kyle and her brother were. She sent a messenger named Scott Malkinson to deliver a letter to Stan telling him that Prince Kyle wanted to go on an early morning ride with him. Her plan was to summon a pack of shadow wolves to devour him in the woods. Unfortunately for her, Scott Malkinson had spotted Prince Kyle the next morning attending a meeting and deduced that the morning ride would not happen. When Scott went back to report to Princess Shelly, he saw her summoning her wolves and commanding them to kill Prince Stan.

"I won't let some stupid prophecy ruin my reign," he had heard her say.

Stan waited atop his horse. Kyle was not here yet. He didn't wait very long, for he heard a rustling in the bushes. It wasn't Kyle, but Scott Malkinson who emerged.

"Your Highness!" he exclaimed with a lisp. "I've come to tell you that Princess Shelly is going to try to kill you. There's a prophecy. You must-"

Suddenly a pack of giant black wolves bounded out of the brush and tore poor Scott Malkinson to shreds. They were large and ferocious, and had malevolent, red eyes. Stan loved animals and nature, but these wolves were unlike anything he had ever seen before.

Stan's horse acted before he did. Upon seeing such monsters, the horse reared as it turned tail and fled. The wolves chased him through the trees into the woods. Stan held fast in his saddle as he drew his sword from its sheath and cut at the beasts who tried to jump him in his saddle. The wolves chased him deeper and deeper into the forest until suddenly, one of them grabbed onto Stan's leg and dragged him off his horse. Before he even knew it, the whole pack of the fiends swarmed him, taking bites out of his arms and legs as he desperately tried to cover himself.

Suddenly a large flash of white appeared. Stan could hear the wolves' whines of pain as they backed away from him and seemed to disintegrate into the strange light. Stan passed out from his wounds.