Spell Mishap

by Ravenor

Rating: mature
Tags: My Little Pony: Friendship is Magic, Porn, Princess Cadance, Horror, Non-consensual, Sex
Length: 1773

There is a reason to why wizards practice in isolated towers.

Princess Cadance was bored. She also just got a special spell book from Twilight.

This turned out to not only be a bad, bad combination, but a very bad mistake.

Published 2019-11-02 10:40:01 UTC
Last updated 2019-11-02 10:40:01 UTC

Mistakes were made

Cadance groaned as she stretched her wings and walked into her private quarters. The humming of the airship constantly filling the air around her as the large vessel traveled towards Canterlot.

She hated traveling. Oh, she loved seeing new places, but the actual traveling? Not so much. Even less so when Shiny weren’t coming along. At least when he was along, he could… distract her.

Sighing, she jumped onto the bed and laid down. Moments later, there was a knock on the door. Cadance groaned, “Enter.”

The door opened and one of her assistants entered, carrying a small package in her magic, “Sorry to interrupt you, Princess, but a package arrived for you just before we left.”

“Put it on the bed please, Bright Star.”

The pink unicorn put it down and bowed before she retreated from the room. Cadance shifted to pick it up in her magic, turning it over. Heavy, box shaped and from the note, from Twilight.

...It’s a book, isn’t it?

She loved Twilight, but sometimes she was rather predictable. Still, anything to get rid of this boredom.

Floating the package before her in her magic, she unwrapped it from the brown paper around it. To her great surprise, it was a book.

What she wasn’t expecting though, was a note from Twily.

“Cadance,

I found this book in the restricted section in the Canterlot Library. This specific one seemed to be more suited in your library then there or in mine. Be careful trying any of the spells in it, but I do recommend reading it.

Some of them are rather fun.

Twilight Sparkle.”

Cadance frowned and put the note down before she opened the book to read the first spell. The first spell causing her normally pink cheeks to turn red.

A spell to stop a mare from gagging while deepthroating.

She licked her lips and flicked her ears, glancing towards the door before she reached out with her magic to lock it before she turned back to the book, reading through the spell.

“Not only is that cheating, but where were you when Shiny and I started dating?” she muttered to herself as she turned the page.

Cock growing spell. As in, allowing a stallion to make his cock bigger.

No wonder Twily sent her this. Some of these spells…

She kept flipping pages. Some of these were outright… lewd. Like making a mare grow a cock. She eyed that spell for a second before she continued.

Maybe at some point, but not now. She didn’t have anypony to help her try it anyway and while Shiny was up to a lot of things, he didn’t lean that way.

Cadance smirked slightly. Maybe next time she got him into a threesome. Last time for his birthday ‘had’ been fun after all. Maybe make it a yearly thing…

She kept turning pages while idly wondering if Princess Luna would be interested, she was a bit old fashioned, but mares had nee-

Oh. Hello.

She blushed at the spell. It was a summoning spell, summoning a… being made primarily of tentacles. Cadance shifted slightly on the bed as she read through it.

It didn’t look that difficult either and the minor demon would return from where it was from after six hours.

She had read a few stories like that before, but she didn’t think it was actually real!

Could… could she?

Cadance bit her lower lip slightly and glanced towards the door before checking that it was locked with her magic before she put a sound dampening spell around the room. Being discovered would have been so embarrassing. The spell would keep any sounds inside from getting out.

Jumping off the bed, she quickly dug through one of the drawers for a piece of chalk before drawing out the simple diagram the book showed onto the floor.

Double checking it against the book, she then nodded and put the chalk away before charging her horn with magic and took a deep breath.

Casting the actually spell wasn’t difficult as very complex and summoning spells wasn’t something you wanted to mess u-

Knocking on the door pulled her attention from the spell the moment she cast it.

“Princess? Would you like a cup of tea?”

The spell hit the circle and it started to glow. Cadence gaped at it and quickly scrambled back from it, readying to defend herself against whatever would come through.

There was a flash in the middle of the diagram and… something appeared. Cadence blinked in surprise as instead of a slobbering demon, what appeared in the middle of the diagram looked more like a black and shiny blanket than anything dangerous.

“What?” She asked and hesitated before slowly approaching. She walked around it before she reached out to poke it with her hoof.

That turned out to be a mistake.

It moved quickly, pink tendrils reaching out from beneath it and wrapped around her hood. She cried out in surprise and fear, but it was already too late.

It shifted, squirming up her leg faster than she could try to blast it away. It scrambled up her body and shifted, wrapping around her, tendrils grasping her horn and pulling her head back sharply as it took her hooves out from beneath her, causing her to fall onto the floor, driving the breath from her lungs.

“NO! Hel-”

It wrapped across her muzzle, keeping her nose uncovered as it also covered her eyes. She trembled, unable to do anything as the thing squirmed across her, tightening and shifting, she could feel thousands of those small tendrils shift and slide across her body, her coat, her horn… her teats and dock. Trail across her cutie marks and dock, sliding across her pussy and spreading it, feeling inside.

She couldn’t do anything.

The demon shifted across her body and she found she could move slightly, able to shift her legs more and more. Suddenly it shifted away from her eyes and mouth and she found that she could move again.

Cadance gasped and breathed heavily before she struggled to sit up again, looking down down at herself. The black material was wrapped part way around her legs and her barrel, the pink tendrils clinging to her firmly. She could feel the tendrils stroking her pussy, working inside her and across her little clit. They stroked and brushed her teats and cutiemarks.

She swallowed and struggled up fully to stand, quickly rushing up to the full body mirror to stare at the sight that met her.

The creature covered her back from the top of her head to the base of her tail, up along the forward edges of her wings and wrapped around her neck and all four legs. It was up along the sides of her head, tendrils around the base of her ears and her horn.

Oh Celestia, what was this thing!?

Suppressing a moan at it’s continued teasing, she reached with her hoof to pull at it on her other leg. Before she could do more than start to move, the creature tightened firmly all around her entire body and pain erupted from the leg where she would have pulled at it as if smacked hard.

The teasing stopped for several seconds as if to make a point before starting again. Cadance shuddered before trying her horn instead. The moment she did, it felt like somebody smacked it hard and she found herself on the floor, her hooves on it.

OW!

“W-what are you?” she asked as she trembled. The creature worked her little clitty firmly in response for a second, making her moan.

It… it had to be some species of tentacle demon. Those were a subspecies of succupony. Which meant it… it lived on the pleasure of ponies.

Well… for a botched summoning, it wasn’t too bad of a result. A bit more dom than she prefered, but…

She struggled up to stand again, making her way over to the bed before jumping up and laying down, sliding her hoof down to her pussy, stroking and working it. The tendrils shifting to the sides to get in the way as she worked her little pleasure button, moaning and shuddering.

It was only for six hours after all.

Eight hours later, Cadance panted against the bed. She had lost track of how many times she had cum. Each time, it left her alone for maybe twenty minutes before starting to tease her again.

“Y-you’re not going away, a-are you?” she breathed out. It stopped caressing her pussy for a second before going back to work. It never actually got her off on it’s own, seeming more than content enough to just tease and work her up until she got horny enough to do it on her own.

“Y-you should. W-won’t be long until they g-get curious and come looking f-for me. T-they’ll drive you away.”

It tightened around her head and neck for a second, guiding her to look towards the mirror and as she did, the being thinned it’s tendrils, hiding them in her coat as it’s main body shifted from a slightly shiny black to match not only the color but also the texture of her coat.

You could no longer see it on her. She shifted and slid her hood along her side.It felt like a ponies coat. Not like her coat, she couldn’t feel it more than as a pressure, but it was doubtful anypony else could tell.

“If I can’t cast magic, they’ll notice!”

It brushed along her horn softly, almost in encouragement. Cadance swallowed and tried a small simple spell, casting a light spell before moaning as it rubbed her clitty firmly in reward.

She shuddered, “I-I could te-”

It tightened around her throat for a second, cutting her voice out as it pinched her pussy lips firmly in warning while pulling her wings and legs close to her body.

Cadance trembled in horror as it let her move again. She was… she was trapped. She couldn’t escape, she couldn’t let anypony know.

It… it had her.

There was a knock on the door, “Princess, would you like some dinner?”

Tendrils brushed across her clitty firmly in encouragement and Cadance swallowed but stayed quiet. It then pinched her firmly in warning and stopped working her for a second.

Clearing her throat, Cadance brought the silence spell down, “I-I’ll be right out.”

It went back to stroking her teats and pussy softly, giving her clitty a firm rub of reward, making her suppress a moan as it coiled firmly around the little nub.