Power Up Sparkles

Late at night, you the human were fast asleep in bed. You were alone on this night, nothing was going to randomly teleport into your bedroom.

Suddenly, there was a blinding flash of light, awaking you with a start. When the light faded you saw a small, four foot tall purple unicorn with freakishly large, basketball sized eyes, and a delightfully plump rump, had teleported into your room.

"Hello, human, I am Twilight Sparkle. What's your name?" she said, reaching a hoof out to you in greeting.

"I... errrr, am Anon." you said nervously, clasping her pillowy soft hoof with your right hand to give it a brief shake, before pulling your hand away.

Twilight beamed happily, before a most serious expression came upon her face.

"I know we just met, but I need you to cum inside my pony butt."

"Errrr what? This can't be real!"

The unicorn flashed her horn with lavender light for a brief moment, causing your blanket to vanish with a puff of purple smoke.

"There's no time to explain! You must cum inside my butt!" she shouted, jumping onto the bed, to stand over you.

"No fucking way! I don’t want to cum inside a horse’s butt!" you shouted, making to push her off you... however your hands seemed to be bound in place.

"It’s pony butt." she corrected.

“Whatever!”

"Anon, please. I only need you to power up my butt by cumming inside my pony butt to stop the evil Reaperbiebers."

“Reaperbiebers?”

“An evil artificial intelligence programmed to be Justin Biebers. So, knowing what’s at stake, do you consent?"

"No! I don't want to cum inside your butt, Twilight Sparkle. Find some other human!" you shouted.

"Anon, the spell will only work if your cum enters my anus with your consent. You are the chosen one!"

You sighed in relief. "I never asked to be the chosen one to cum inside a horse’s butt.” Twilight made quiet, angry horse noises in response. “I'm sorry Twilight, but I don't want to cum inside your butt."

"Please, Anon. Please cum inside my butt." she said, looking down at you with pleading, puppy dog eyes.

"No!" you stated firmly.

"Please Anon, I need your cum inside my anus to save humanity."

"Yeah well, I hate humanity! I want all of humanity dead!"

She slapped you across the face with a hoof.

“Ow!” you shouted, rubbing your cheek.

"Quit being a misanthrope and cum inside my unicorn butt!" she shouted.

"Will your unicorn buttmagic turn me and all of humanity into unicorns? I rather be a unicorn!"

"No! It won't."

"Then I'm not doing it! you huffed, crossing your arms.

"Come on Anon, you must cum inside my butt!"

"I don't want to cum inside your pony butt! I don't have a unicorn fetish!"

"Anon, come on! You must cum inside my butt to save humanity!" she shouted angrily.

"No! I don't want to fuck your butt!"

"Oh, I get it. My butt is not big and fat enough for a handsome human to cum inside me. It always has to be Princess Celestia’s butt doesn't it?!" she shouted.

“Yeah well, I wouldn't want to tap Princess Celestia’s butt either!” you shouted.

“HERESY!” she shouted, making to slap you across the face, before changing her mind at the last moment.

"Anon please, I need your human cum inside my magical pony butt in order to save humanity!" said the small purple horse, with tears in her eyes.

“Can’t I just donate my sperm?”

“No!” she said sharply. “Your penis must be deep inside my butt when you cum inside me. I’m not asking for much, you could be in a far worse position right now.”

“I don’t know how it could be any worse?!” you shouted, raising your arms in exasperation.

Twilight flashed her horn, opening what appeared to be a sphere shaped window into another universe.

You looked on in horror to see another, Twilight Sparkle, who was as big as a shire horse and had a long and thick horse cock at least fifty inches long as she stood above an alternate version of yourself.

“Please, human. Let me stick my giant futa pony penis up your butt and let me cum inside it. I promise, my penis won’t rupture your insides and kill you.” said the other Twilight with pleading doggy eyes while staring down at the terrified human.

“Uhhhhhh….. point proven. Okay, I’ll fuck your butt if it can save me getting a giant horse cock up my ass.”

Twilight made a squeaking sound like a dog’s chew toy, whilst flashing her horn, dismissing the window in the other world away.

“Fuck my butt human! Worship the unicorn butt!” she shouted happily.

You uttered a deep sigh, making to stand up over the excited pony, her legs shaking in anticipation.

“Be gentle.” she said sweetly.

Begrudgingly you took hold of your shaft, guiding it toward the hole under her tail.

“We might need to do some foreplay. This will hurt.”

Suddenly, Commander Shepard burst into the room, who was wearing full power armor and armed to the teeth.

“I defeated the Reaperbiebers, milady.” he proudly declared. “We'll bang, ok?”

Twilight Sparkle galloped away from you, jumping into Shepherd's arms and kissing him.

“Oh my husbando, let us make sweet human and pony love.” she said sexfully.

“Curse you Commander Shepard! You horse waifu stealing bastard! I will have my revenge! For I am Anon!” you shouted, glaring angrily at the two kissing.

As Commander Shepard and Twilight Sparkle made out there came a flash, followed by the appearance of feathery wings on her back.

Suddenly, there came a blinding flash of light, followed by the appearance of a massive, shire horse sized version of Twilight the unicorn, with a huge long and thick cock.

“Anon, I need to stick my massive futa penis up your anus to save the universe.” she said softly.

“Do I get to fuck your ass afterward in return?”

“Of course.”

You went on all fours upon your bed, turning around to spread your asscheeks to her. "Fine, let’s get this over with. It's not gay if she has a penis."

The End