Minutes after they had seen her disappear in a flash of light, Twilight's friends all saw Twilight's cutiemark descending from the sky. They all ran outside to where it finally came to the ground. It then faded and Twilight appeared, only she was an alicorn now.
"Twilight!" they all gasped.
Twilight looked at her new alicorn body in shock.
"Twilight's become an alicorn!" exclaimed Rarity.
"You look just like a princess!" said Fluttershy.
"She IS a Princess."
They turned to see Celestia as she suddenly appeared behind them.
"Princess Celestia!" they all gasped. “Wait! What?” said Twilight after what Celestia had just said registered in her mind.
"Wait a minute!" said Rarity, speaking up. "Is that what that spell Twilight just cast did? It turned her into an alicorn?"
Celestia nodded. "Yes. That is what Starswirl's unfinished spell, now completed, was meant to do."
"So you're telling me that that spell turns ponies into alicorns?!" Rarity exclaimed.
"Yes," said Celestia. "That's what it just did to Twilight."
Rarity continued to stare at Celestia with wide eyes. Then stars appeared in her eyes as she got an idea.
"Um, could you excuse me for a moment," said Rarity. She turned and quickly ran back into the library.
Suddenly Twilight shouted, “What do you mean I’m a Princess?”
Celestia turned back to Twilight, who had a look of panic on her face. “I mean exactly what I said,” said Celestia calmly. “You’re a Princess now.”
“WHAT!?!” shouted Twilight, still looking horrified. “But… but I never agreed to THAT!”
“Twilight, that’s what I’ve been planning for you this whole time,” said Celestia, still as calm as ever.
“BUT YOU NEVER EVEN ASKED ME!” shouted Twilight up at her teacher, tears forming in her eyes. “DON’T I GET A SAY IN THIS!?! IT IS MY LIFE, AFTER ALL! DIDN’T YOU EVER CONSIDER THAT I MIGHT HAVE OTHER PLANS FOR MY LIFE!?!”
Princess Celestia frowned. “Well… I guess I just assumed that you would want to be a Princess, since you’re a girl, and all girls want to be…” Celestia was suddenly interrupted when there was another bright flash of light in the sky. They all looked up and were surprised to see Rarity’s cutiemark descending from the sky.
"What on Earth?!" exclaimed Celestia in shock as, just like Twilight, Rarity emerged from the light, now an alicorn as well.
"YES!" Rarity squealed happily as she looked over herself. "Oh, yes! I'm an alicorn now! Oh, look at my wings! Aren't they simply divine?"
"R-Rarity, what did you do!?" shouted Celestia, mortified.
"What?" said Rarity. "I simply used Twilight's spell to turn myself into an alicorn too. Oh, aren't I beautiful?"
"B-but…" stuttered Celestia. "But only Twilight was supposed to become an alicorn!"
Rarity tilted her head in confusion as she stared at Celestia. "Why?" she asked. "If she can use Starswirl's spell, why can't I? In fact, why can't everypony?"
“Yeah, princess, why?” asked Twilight, looking up at her mentor with a scowl, still upset that her beloved teacher, whom she had had so much trust in, would make such a life altering decision for her without even asking her if that was what she wanted. “We have the finished spell now. Can’t everypony be an alicorn if they want to be?”
"N-NO!" shouted Celestia. "Because… because only Princesses can be alicorns!"
"Why?" asked Twilight, still confused about all of this. "I think it's only fair that everypony should have the right to become an alicorn if that’s what they want. After all, I used a spell that gave Rarity wings before, and you didn't have a problem with it then. What would be the harm?"
"Well… because… I…" Celestia struggled to come up with an answer, but she couldn't really think of a good one. Just then, Pinkie Pie spoke up.
"Ooo, fun! I want to be an alicorn too!" Pinkie exclaimed, still checking out Twilight and Rarity's new bodies.
"Yeah, me too!" Rainbow Dash said. "Then I can be the first ever alicorn Wonderbolt!"
"Ya know, if ah became an alicorn, it could really help me out back on Sweet Apple Acres," said Applejack thoughtfully.
"Cast the spell on us!" said Pinkie, jumping up and down excitedly.
"Look, you can't ALL be alicorns!" shouted Celestia.
"Why?" they all asked in unison.
Before Celestia could try to come up with an answer again, suddenly they heard another voice nearby. "Hey what's going on? Oh my gosh! Are Twilight and Rarity alicorns!?"
They turned to see Lyra and Bon Bon standing nearby. Also, other ponies were starting to come out of their homes to see what was going on outside.
"TWILIGHT CREATED A SPELL THAT TURNS PONIES INTO ALICORNS!" Pinkie Pie shouted.
"SHE DID!" exclaimed many ponies around them, who all began shouting at once, much to Princess Celestia's dismay.
"I WANT TO BE AN ALICORN!"
"SO DO I! WHAT'S THE SPELL?"
"MAKE ME AN ALICORN, PLEASE!"
"DID THE GREAT AND POWERFUL TRIXIE HEAR CORRECTLY THAT THERE IS A SPELL THAT CAN TURN PONIES INTO ALICORNS?!"
Celestia facehoofed. "Oh Faust, what have I done!?" she said to herself.
........................
About a week later, many ponies throughout Equestria had been turned into alicorns, and the numbers were still growing.
"Oh well," said Celestia to herself as she sat on a balcony of castle Canterlot, watching all the new alicorns flying around above the land. "I guess I should have seen this coming."
The End