In Ponyville, John was leading the others in a frantic search for Twilight and Geo.
"Come on mate," he yelled, "this isn't funny any more!"
In the sky above, a blazing flash of purple light distracted their attention. They looked up to see a large version of Twilight's cutie mark, now sporting six white stars instead of five, descending from on high. It manifested itself in the middle of town to reveal Twilight, although Geo was nowhere to be seen.
All eyes looked to Twilight, who had hers closed. Suddenly, she opened them — while a pair of magnificent lavender wings flared out from her back.
Everyone gasped.
"Wha..." Applejack stuttered, "I, I've never seen anything like it!"
"Whoa, Twilight's got wings!" Dash said as she prodded the new appendages, "Awesome! A new flying buddy!"
She laughed as Rarity spoke up.
"Why, you've become an alicorn." she said, "I didn't even know that was possible!"
Twilight looked around in confusion.
"Two things." she said, "First of all, what the heck is going on? And secondly... where's Geo got to?"
The answer came in the form of a loud scream coming from the library. Twilight gasped and ran towards the building with her friends and mentor in hot pursuit. The door was blasted off its hinges as the group piled inside, only to come to a sudden stop at the sight which lay before them.
***
As Celestia's spell took hold of Twilight, I found myself being affected by it as well. I felt myself falling as the world around me faded to black, and then all was silent.
I don't know how much time passed by before I opened my eyes again. I tried standing up, only to fall flat on my face as my balance was suddenly thrown off. After several attempts with the same result I finally managed to hoist myself off the ground.
As I stood up I caught sight of myself in the mirror. The face which looked back at me was clearly mine, but with a few major differences — chief among them being the horn which was now in the middle of my forehead.
At that moment I did what any rational person would... and screamed louder than I ever thought possible.
"I'm... I'm a unicorn?" I stuttered, "... what the fuck was in that damn spell, Celestia?!"
Something tickled my side and I froze. I slowly cocked my head back — only to find that I also had wings.
Any sense of rational thought was destroyed at that moment as I stood in stunned silence, not even noticing the door as it sailed over the top of my head and collided with the far wall. Nor did I hear the shocked gasps of my friends as they took in the sight before them.
"I... I don't believe it!" Twilight gasped, "Geo is an alicorn as well? Princess, what on Equestria happened?!"
Celestia put a hoof to her chin in thought as she took in my new form. She saw the frozen look on my face and tapped my new horn with hers, which caused a shock to course through my body and thus rouse me from my stupor.
"Er..." I said sheepishly, "hi, everypony. Would one of you mind explaining to me why I'm an alicorn now?"
"I could tell that when you and Twilight got together," Celestia explained, "that you were simply meant for each other. However, I also knew that the time would come when I would transform Twilight... but alicorns, as you know, have long lifespans. So I decided to transform you as well, Geo, so that you both could spend that time with each other — like you deserve."
I smiled as Twilight came up and started looking me over like Celestia had been. Her eyes stopped at my flank which she clearly liked, if her smile and half-lidded eyes were anything to go by.
"That's an interesting cutie mark, Geo," John said suddenly, "but what the hell is it supposed to mean?"
I craned my neck to try and look at it. After much flailing around, John sighed and decided that explaining it would be better.
"It's a shield with a heart on it." he said, "Any idea what it means?"
I shrugged – or did something I hoped would pass as a shrug – and looked around the room to see if the others could guess. Twilight, of course, was the first one to offer an idea.
"I think it shows your willingness to protect the ones you love." she said, "Remember how you stood up to King Sombra?"
"I do," I nodded, "and I'd do it again in a heartbeat."
"I remember that as well because I tried to drag you away from Sombra with my teeth." Rainbow Dash said with a chuckle, "I should have just picked you up again. That always works."
"Correction," I replied, "it used to work. I'd like to see you try and pick me up now."
Dash rolled her eyes and grinned as John came over. He looked me over like everypony else had been – except at the flank – and then put a hand to his chin in thought.
"So," he mused, "if you and Twilight are alicorns now, doesn't that make you both royalty or something?"
"It does indeed," Celestia said, "for ever since Twilight came to Ponyville she has displayed the charity, compassion, devotion, integrity, optimism and of course, the leadership of a true princess. And Geo has been by her side through all of her latest trials."
"So in other words..." Pinkie said as she suddenly appeared wearing a fake horn and wings while walking on stilts, "we need to throw an alicorn party!"
She blew a note on a kazoo she also acquired from some inexplicable place. Celestia giggled and shook her head.
"There will be a coronation," she said, "but you are more than welcome to plan the after party, Pinkie Pie. In fact, I must insist that you do."
"Okay!" Pinkie squealed before shooting off like a rocket. We watched her disappear into the night before talking again.
"Come, everypony," Celestia said, "Geo and Twilight need time to adjust to the situation. Let us leave them in peace."
"I need time to adjust all right." I retorted, "Time to adjust to life on four legs. I wonder if I'll be able to use magic or fly?"
"I'll teach you how to use magic," Twilight said, "and I'm sure Rainbow Dash would be willing to teach you how to fly."
Dash puffed out her chest proudly.
"Of course!" she said, "It's going to be so awesome having a couple of alicorns as flying buddies! I just hope you'll both be able to keep up with me!"
Twilight and I chuckled as everyone began to file out of the room. John came over and whispered in my ear. I laughed out loud at his suggestion and patted him on the back.
"Don't worry," I replied with a wink, "that's gonna be one of the first changes to my anatomy that I will be investigating, if you know what I mean."
John winked back and soon Twilight and I were left standing in the middle of the library looking at each other.
"This has been some day," I said, "hasn't it, Twi?"
"It has indeed." she replied, "But I think we'll get used to it. Though I think we're going to need a bigger bed."
I replied by nodding. Twilight stood by my side, leaning into my neck while wrapping her tail around mine.
"Are you going to miss being human?" she asked, "Because I'm sure Princess Celestia will change you back if you asked."
"No," I replied, "I'm fine. The loss of my humanity is a small price to pay for getting to spend even longer with you."
Twilight giggled and nuzzled me.
"I guess we'd better go to bed," she cooed, "and work out who's going to sleep where."
"Oh that's easy," I said with a grin, "you lie on me and use me as a mattress. After all, you do prefer being on top."
Twilight gasped and whipped my flank with her tail before chasing me upstairs.
And so began the next chapter in our lives.