Happy Full

by ReadingRainbow

Rating: mature
Tags: Sex, Twilight Sparkle, Random, My Little Pony: Friendship is Magic, Spike
Length: 2833

A mysterious mare drops a book off at Twilight library. Naturally, Twilight casts a spell from it.

Twilight has long studied the life of Starswirl the bearded, so when a mysterious mare drops a book off that just so happens to be written by one of his descendants, she cant help but read it.

Naturally, curiosity nearly killed the over-studios alicorn.

Trigger warnings: Cum Inflation, Lactation, Breast Expansion, possible Hyper Pregnancy?

Inspired by a picture by Plushtail, which is sourced in the coverart. Keep in mind that it is NSFW.

Published 2015-11-17 00:10:02 UTC
Last updated 2015-11-17 00:10:02 UTC

Unintended Results

Happy Full

Unintended Results

"Magical studies recording four-eight-seven, part 1. This is a vocal study of applied magic and quantum physics in our modern world of Equestria.

Hello. My name is Twilight Sparkle. If you've stuck with me for my past recordings, you probably already know that.

Anyways, for many years I have studied the works of Equestrias greatest unicorn, Starswirl the Bearded. There have been other great unicorns too, but many can barely come close to reaching what he accomplished, myself only managing to complete a spell he had already written. He invented thousands of spells, many of which are used around us daily. But Starswirl lived thousands of years ago, since before the founding of Equestria as a nation. What of his bloodlines? There are no documents from that era detailing any family that he passed his genes down to, but any documents close to his lifetime point towards a certain family of gifted unicorns that died out almost one thousand years ago. I could go into more detail about that, but my main focus is a certain subject of Starswirls bloodline. Today, some strange unicorn in a hood knocked upon the door to the library, and left me this book without saying a word. They just held it out and dropped it in front of me, then left. They literally dissapeared into thin air. But the book itself was written by a member of The Bloodline, a unicorn stallion by the name of 'Sharp Wit the Second", known for his accuracy and the 'Colorful' spells which he invented and oh so often enjoyed casting.As an heir to a great unicorn family, he spent years toiling over the magical tomes passed down from generation to generation, learning the secrets to the mystical arts, both of dark and light magic.

Sharp Wit wanted to be a unicorn remembered by his discovories, but studying for so long without ever leaving his home high in the mountains, Sharp Wit neglected the part about passing down his legacy to a family line that would succeed him. As such, he became old and fragile beyond his years, unable to attract any mare, despite promise of title and wealth. His fate was sealed by his own lack of action. He had nopony to become his successor, so in a desperate attempt to seal his place in the history books, he created one final spell on his deathbed. Or you could also say he turned his core essence into a spell, that when cast at any mare, would fill said mare with a limitless amount of his...ejaculate. Desperate times call for desperate measures I suppose. At any rate, when a nurse came back to check on him, he had vanished from his room into nothing, his book which contained said spell lay on his bedside table, whereupon the nurses put it on a bookshelf with the rest of his belonging which were later sold. It would seem that he was unable to cast the spell, before taking his final breath. His mysterious dissapearance left many questions, with ponies speculating he went north to go on and become Sombra, or that he went mad and became an immortal being that turned all of Equestrias clouds into cotton candy. Whatever the case, historical records make no mention of him after this point. His only record in history is his life, and he does not show up in any other history book for anything other than exsisting. No accomplishments, and no rewards. My own extensive research only showed me the barest pieces of his life, and he is unrecognized for any of the magical spells he created.

But now, Sharp Wits book has arrived at my doorstep, and with the utmost precaution, I am now prepared to cast his final incantation upon a small container, rather than a mare. Hopefully a fishbowl is a worthy substitute. And as vulgar as this spell is designed to be, with good luck, I should expect positive applications for this spell for other means. Results will follow in Part 2. As always, all responsibility for whatever may happen, lies solely with the spell caster as outlined in the legal disclaimer at the beginning of this recording collection. Do not attempt any spells without proper surpervision.

Note: The bottom half of the page has been ripped out, and it seemingly indicated a way to reverse the spell. As I am casting this on a container and not a biological being, it should not be needed."

Twilight sighed as she removed the crystal from her microphone, placing it into a small slot in a case on her desk. The spell didnt look too difficult for her, but it was a lengthy one, and required the casting unicorn to cast continually for it to activate, and had multiple stages of casting. She would need complete silence so she could focus.

"Spike? Could you perhaps go finish that comic book up in your room? I'll need to be alone for this one."

The now teenage drake looked up from the beanbag chair he was situated on to stretch a bit.

"Well, with a log entry like that don't mind if I do."

"Thank you Spike," Twilight chuckled. "I appreciate it."

"No problem, just dont get any on yourself."

A book hurtled through the air, narrowly missing the laughing dragon as he thundered up the stairs of the laboratory, a flustered unicorn blushing at the source of its trajectory. Twilights lab was just as complex as her old one, if not more. The ceiling rose almost 40 feet high, and the room had to have been 35 feet across on both sides. It was the perfect place for learning, and almost Twilights favorite place in the entire Castle.

"Alright Twilight, this one should be easy enough," Twilight muttered, running over the spell in her head. "Nothing you cant cast."

Her horn glowed a deep purple as she began to cast the first part of the spell at the fishbowl in front of her. Lines of the spell ran through her head, as she put them into the spell, her horn glowing brighter as she progressed. Suddenly, a surge of arousal flushed through her body, and she shivered at the feeling with slight shock.

"Now? You have got to be kidding me..."

Twilight paid it no mind, and continued pouring her magic into the spell, thinking the arousal would go away if she ignored it. Another surge pulsated through her, and she moaned as it pushed its way through. She stood up straight, only to wobble about as another stronger surge pushed its way through her, the lust within her system growing stonger with each passing minute. Deciding against continuing the spell while unfocused, Twilight stopped it.

Or she attempted to. The spell had its own free will now, growing stonger as it used Twilights horn and magic as a conduit for its effects, Twilights lust building more. Twlight began to panic, as the spell flared out of control, pushing its now visible aura towards her nether regions.

"No, stop!" She yelped, as the magic flowed over her back and came to rest on the lips of her marehood, other parts of her magic now holding her hooves in place and binding her wings to her sides. Twilight squirmed against the spell, desperately trying to escape as it finally pushed its way inside her pussy, reaching through her insides and flowing all the way into her womb, before it suddenly vaporized, leaving Twilight panting in its wake. Twilights eyes widened at a sudden heavy feeling in her belly, and the realization of what had just happened hit her like a freight train, as more surges of arousal pushed through her body. Her horn still glowing brightly on its own, twilight rushed over to the spellbook and began flipping pages randomly, trying to find some way to remove or reverse the magic effect on her body.

"Oh no..." She gasped, eyes coming to rest on the back cover of the book. "This cant be good."

The final page was empty. There was nothing written through the entire book that even made reference to the spell, and Twilight wasnt even sure how long the spells effects would last for. The heavy feeling in her belly was getting worse, slowly pushing her belly outwards, distending it to look as if she had eaten a full 3 course meal at a buffet. Twilight could feel the weight of what was most likely a gallon of thick stallion jizm sloshing around inside her, and it was getting heavier by the second. She moaned again, her arousal pushing to new heights. With each pulse of her heartbeat, the lust running through her body was stronger, and the spell burned just a bit brighter. She fell to her kness, her eyes screwing shut as she fought the spell, moaning like some prostitute from the street.

"Uhg...I bet this is why he didn't cast it," She thought, her cheeks flushed bright red. "if I dont find some way to reverse this soon, it might not end well for me. Maybe I shouldn't have memorized the spell..."

Her stomach had surpassed the buffet stage, and was ballooning outward at an increasing rate, almost reaching halfway to the ground. The magic around her hooves having long since dissipated, she grabbed the spellbook with one of her hooves and re-read the spell. Another surge passed through her, and she moaned so loudly that Starswirl himself should have woken from the dead. Twilight could feel the spell at work, the spunk contained within her womb actually pulsing as yet more and more of it formed, pushing its way down her love canal and attempting to escape through the entrance of her marehood. For some reason, it couldn't exit, and Twilight was sure it was being held in by the spell. Her stomach was expanding visibly now, each heartbeat pushing inches of growth into her midsection. Her teats had started to expand as well, the nipples hardening as the milk within beaded on the tips, filling them to the brim. Moans of carnal lust filled the laboratory while an innocent Dragon lounged comfortably in his bedroom, headphones blaring as he remained blissfully oblivious to the situation 2 floors below him. Twilight on the other hoof, was completely aware of everything going on within her, feeling as if she was screwed. Her stomach finally pushed against the floor, rolling along the surface slightly before lifting her hindquarters off the ground, taking her hind legs with it.

"Oooohhh Celestia," Twilight groaned, the pleasure starting to overwhelm her rational thinking. "Why is this even a spell?"

Twilights horn was comparable to a floodlight now, visibly spreading light around the more-less dimly candlelit room. It surged in intensity again, as yet more lust and magic flowed into its host. There was at least 2000 gallons in Twilights belly now, and the amount was rising faster and faster as she was lifted fully off the floor. Her heartbeat was still keeping time with the pulsations, he tongue lolling out of her moth as her eyes began to roll back in her head. The pleasure she was experiencing was reaching close to the peak, and the amount of spunk inside her did nothing to stop it, as it brought her belly to the size of a large table. Her belly swelled past 9 feet, and her horn didn't show any signs of slowing down.

Twilight began to moan constantly, and as her moans turned into a scream of eternal lust, she reached her first orgasm, the pleasure coursing through her and making her shake as huge shivers ran down her spine. The orgasm simply pushed more fuel into her horn, her lust addled mind no longer fighting against the spell that had robbed her body of its will. The aura around her horn grew larger and brighter still, as the semen within the alicorn started flowing into her like a flashflood.

She reached 2100 gallons and didn't stop. 2600 gallons. 3700, now 5400, her belly pushed her high above the height of anypony she knew, well above the height of even Princess Celestia. Counters and equipment were pushed aside to make way for the growing behemoth. The warmth inside her surged and sloshed, the literal ocean of jizz straining against the confines of the fleshy prison that contained it, only serving to increase her libido as it finally began to leak out of her winking slit. Twilight looked like a blimp at this point. Her breasts swelled with milk, each one seemingly 6 feet in width, their tips leaking streams of their contents onto the floor below, and yet they too continued to fill like her belly did. The spell had reached its own peak this time, and another orgasm wracked Twilights limbs with pleasure. As she spasmed atop her massive belly, it ballooned outwards so quickly that her screams could be heard throughout the castle, more orgasms suddenly pushing through her. While her Crystal castle was much larger than her old library, she was now rapidly approaching the confines of the space she was in, and as her belly pushed outwards, her gigantic breasts rested on top of it, swelling larger and larger with each passing second as they were the first to hit the ceiling.

The purple alicorn had lost all control, the constant state of orgasm making her drool as she panted and squirmed in unimaginable pleasure. Somehow, she could feel herself reaching another peak as her belly finally hit the walls, still pushing her upwards as her breasts spread against the ceiling, milk flowing out of the nipples as if from a firehose, pooling around the edges of her enourmous stomach to mix with the jizz that was flowing from her marehood. The spell began to stroke along the insides of Twilights vagina, and wrapped itself around her needy clitoris, stimulating both with savage ferocity before bringing the senseless mare to her limit.

Thar she blew.

Twilights world went white, as a single mindblowing orgasm tore through her core, a noiseless scream trying to escape from her open mouth. With a final surge, Twilights horn literally blasted for all it was worth, her stomach pushing her towards the ceiling while her massive tits squished against it, milk blasting out like a firehose.

Never in her life had Twilight achieved such high amounts of pleasure. If she had been spectating the event, she would have said that the entire thing was 'overdoing it' but now she had no doubt in her mind that this was the best feeling in the world.

The young princess thrashed in place, as her horn gave a small sputter before dying out completely. Twilight gradually regained her faculties, and moaned at the feeling of her full belly. Her breasts had been sandwiched between her and the ceiling, so full they looked ready to burst at the seams with the payload they carried. There was 5 feet between Twilights head and the ceiling, and she couldnt move. It was if she had eaten all the apples at Sweet Apple Acres, and nopony had told her that she couldn't.

She loved it.

Rubbing her hooves slowly across the taut skin of her belly, Twilight groaned softly as the contents of her womb pushed against it. Even though she was still enjoying herself in the afterglow, the experience had taken the energy right out of her, making her horn ache with overuse. She lay her head down on her belly, and as she listened to her heartbeat thrum suftly against her ears, she quietly drifted off to sleep.

-~^*+*^~-

Cadance was sitting in the crystal empires castle, sipping tea while her husband studied tactics with a new guard. It was enjoyable to say the least, the light of the sun warming her nicely while she enjoyed the summer breeze.

She spat out her tea with anything but a graceful looking face.

"GOOD LORD!"

Shining Armor whipped his head around so quickly it almost unscrewed itself and madly scrambled towards his wife as his hooves struggled to find purchase on the sleek crystal floor.

"Cadance are you alright?"

Cadance twitched, and turned her head to look her husband in the eye.

"I'm suddenly very offended, and I don't have a fucking clue as to why."

-~^*+*^~-

Celestia spat her own tea all over her younger sisters face, said sister screaming in shock.

"Celly! What did you do that for!? Now I'll have to go clean myself again!"

Luna trotted away with a huff, leaving Celestia to look angrily toward the crystal empire.

"Somepony just swore."

~Fin~

Author's Note

I wrote this in 3 and a half hours...Phew. Hopefully its at least a bit okay. Enjoy!

Picture from Derpibooru (NSFW)

Journal entry inspired from a comment on the picture by derpibooru user 'DoranGrey'.

Maybe a 2nd chapter or sequel oneshot coming soon!