Prologue: The Cursed Springs
It was a bright sunny day in Canterlot, and Twilight Sparkle and her young brother Spike the dragon were currently sparring in their room in the castle, no magic allowed. Twilight Sparkle was a 23 year old unicorn mare, with purple fur over her body, and a mane that was a darker purple with a streak of pink in it, and a magenta horn sticking out of it. She had a cutie mark of a 6 pointed magenta star, surrounded by smaller, white colored six pointed stars. She currently was wearing a gi made for martial arts, tailored to fit a unicorn mare like her. She also wore light purple shoes on her hooves, and a red belt with a white stripe across her waist. She also had an ample sized bust, a size AA.
Spike, however, was a teenage dragon of age 13, with purple scales over most his body, except for on his belly, which were a light green colored. He also had spines running down his back, also of the same green color. He even had the beginning of purple leathery wings sprouting from his back, which he had already modified his outfit for. Finally, he had a purple tail sticking out of his pants portion of his gi. Currently, he was wearing a gi made for martial arts, just like his sister, but made for his measurements. He wore brown colored shoes on his feet, and a blue colored belt across his waist.
They were both panting, and decided for one last strike before finishing their spar for the day. Spike charged his sister, but was quickly struck in the chest by Twilights kick, knocking him down and ending the session.
"Great job Spike, your getting better! You actually managed to land a few hits on me this time. I think you definitely earned that blue belt last week!" Said Twilight, as she helped her younger brother up.
"Thanks Twi, although maybe we should try and find a new place to spar in the future, I don't want to keep wrecking our room." Spike replied, as during their spar they had accidentally knocked a bunch of books off the shelves.
"Yeah, I think your right. Why don't we explore the lower levels of the castle to see if we can find anything?" Twilight asked, to which Spike nodded in agreement.
So, after Twilight was finished with her magical studies for the day, about 5 hours later, the two siblings began to explore the lower levels of the castle basement. After about 20 minutes, the two came across a staircase that neither had seen before, and descended it. Suddenly, the stairs turned into a slide, and they fell into the lower levels. They both landed on the cold, hard ground.
"Ouch, that hurts." Said the drake, as the two began to look around their destination. They saw that they were surrounded by springs of water, and both instantly knew that they had found their new training grounds. They both immediately went to opposite sides of the room and changed back into their gis, giving each other privacy. Then they began to spar for the second time that day, which was unusual as they never sparred more than an hour a day. However, they wanted to break in their new training grounds as soon as possible. They had both silently agreed that falling into the springs would give the other one point. The first blow was struck by Twilight, sending her brother into one of the springs. However, she did a double take when out of the spring came not her brother, but a teenage dragoness. The dragoness was quick to strike her, sending her into another spring.
"Hah! Take that Twi- What the, what happened to my voice?" The dragoness said in confusion. She became even more confused when out of the spring she had punched Twilight into came not the unicorn mare, but a dog. She looked at the dog in confusion, which was barking at her, until it realized what was coming out it's mouth and stopped.
Princess Celestia had just finished her day court for the day, when she decided to go see how Twilight and Spike were coming along in their martial arts. She had a brilliant white colored fur, with a mane of cyan, pink and lime green colors. She had a white horn sticking out of her mane, and white feathery wings sticking out of her back. She had a cutie mark of a sun. She was currently wearing one of her royal dresses, a full body blue gown that did nothing to hide her royal figure, including a huge DD sized bust. Suddenly, an alarm sounded in the throne room. She narrowed her eyes, the only reason for that specific alarm to go off was if somepony had stumbled into Posenkyo. She quickly used a teleport spell to go check who it was and hopefully save them from the cursed springs. When she got their, however, she realized she was too late as she found a soaking wet dragoness and dog. She quickly realized that the dragoness was Spike, so she figured the dog must be Twilight. She began to chuckle a little before addressing the two.
"Spike, Twilight? Is that you?" She asked, getting head nods from both. The princess sighed before teleporting the three of them to her private quarters. She then used her magic to conjure up two glasses of hot water and pour them on the two. Instantly, they changed back to normal. Twilight instantly began to bombard her mentor with questions, like "What happened" and "Why did we transform?" She immediately stopped when Celestia cleared her throat.
"What just happened was something that I had hoped to never happen again. You see Twilight, those springs are cursed. They are known as Posenkyo, and each spring transforms the victim into something else. You Twilight, fell into the spring of the dog, so you are now cursed to transform into a dog, in your case a husky. You spike, fell into the spring of the girl, causing any man that falls in to turn into a girl. The curses activate when splashed with cold water, and you turn back to normal with hot water. And unfortunately, their is no cure either."
Twilight and Spike just stared in shock at princess Celestia, taking in the information she just said.
"Is their any reason why such a place wasn't blocked off?" Spike asks, to which Celestia looks at him confused.
"I personally blocked those springs off a thousand years ago, after me and my sister found them and both fell in. It took us awhile to figure out how the curses work."
"But when we went down there, the entrance was unblocked." Said Twilight.
"So what spring did you fall into Princess?" Asked the dragon.
"I fell into the spring of man, so I turn into a guy. My sister Luna fell into the spring of the Timberwolf, so she turns into a Timberwolf." Celestia says.
"So, we just have to live with this, curse from now on?" Asks Twilight, earning a nod from her mentor. "Anything else we need to know?"
"Only that the curse seems to attract water for some reason." Responds the princess.
So, after the conversation, Twilight and Spike went back to their room to spend some time together. Meanwhile, Celestia wondered just how had the springs become unblocked.