Brain Drained Bookworm

by LuckyLooper

Rating: mature
Tags: My Little Pony: Friendship is Magic, Anthro, Porn, Moondancer, Fetish, Comedy, Sex
Length: 1864

Moondancer discovers a book in a forbidden part of the library, unaware of how happy it'll make her... Please brain responsibly.

As Moondancer goes through the forbidden section of Canterlot's library, she discovers a book that seems very out of place, promising great happiness to those smart enough. She ends up learning what it truly means to be happy...

The following story contains brain drain, breast, butt, and hip expansions, ego-inflating, and a very derpy and dumb mare being very derpy dumb and horny.

All Characters are 18+, obvs.

Published 2023-04-28 07:00:01 UTC
Last updated 2023-04-28 07:00:01 UTC

Please Brain Responsibly

Moondancer’s fingers flipped through the books as she hummed in thought. Being one of the first friends of the new ruler of Equestria had its benefits. One of them was access to a far larger access of books that she hadn’t been able to get. Twilight warned her to be careful, but she assured the princess that she had no intention of casting any spells.

As she wandered the massive library, she picked books that captured her interest. The Book of Lost Manes, The Whispering Tome of Vyne Whispers, The Great Manual of Mystic Machines…

Then she stopped as she spotted a book that seemed very out of place. Most of the books seemed ancient, yet well-preserved, kept in impeccable condition to continue their preservation. All except for a bright yellow book with white lettering and a red bordering.

The Smarty’s Guide to Infinite Happiness

Sliding the book from its shelf, Moondancer got a better look at it. It looked to be some kind of joke book with pictures of brains and planets and big wide smiles drawn on it. It was extremely juvenile, unfitting for its place in this majestic library.

Why would they put it here…? Moondancer wondered as she adjusted her glasses. She looked around to confirm she was alone. I suppose a little bit of investigating couldn’t be too bad…

Exiting the hall, she found a table to set her books down before flipping open The Smarty’s Guide to Infinite Happiness. Moondancer made sure to keep a small mental barrier up and slowly opened the book.

Congratulations! You’re smart enough to manage to get your hands on a copy of The Smarty’s Guide to Infinite Happiness! This powerful book is the product of centuries of intense skill and training. The book itself had found itself bound under a spell that prohibited all but the brightest minds to read it. You alone are the lucky ones to gaze upon its pages!

Moondancer was amazed. If a book this out of place hadn’t been spotted as out of place until now, that means that some powerful magic kept it from being spotted. And she was among the intellectual elite who could spot the book.

Beaming with pride, she continued to read.

Within this book, you will find the steps to obtaining the truest happiness that only an intelligent individual such as yourself could attain. And once you’ve obtained this happiness, you might even consider sharing it with those less intellectually stimulating. That is, of course, if they could understand it.

Moondancer giggled a bit as she read. While it seemed a bit elitist, she couldn’t help but admire the dry wit of the author. They even offered to have this knowledge shared with others, which was something that one normally didn’t get from the “too smart for the common pony” types. With that, she felt content continuing to read the guide.

As she read, she took in the advice that the book gave, which in truth, was more and more of the book fellating her intelligence and offering bits of self-help.

Be true to yourself…

Don’t let others dictate your world…

Challenge to see the world in your light…

It was stuff that normally put others off and almost like the book was pandering to the reader. However, Moondancer smiled wide and nodded, every bit of praise giving her a lovely feeling inside as she nodded and flipped the pages. What she didn’t realize is how her mental barrier was starting to waver. Weaknesses and cracks slowly formed, making suggestion grow easier and easier the deeper she read. Soon, a hole formed and her mind was just a bit exposed, and that was enough for the book.

You’re too smart to be worried about meer pieces of the past!...

Why study from the ponies who didn’t have things as good as you?...

You’re smarter by default!...

Moondancer nodded along, her eyes looking a bit duller. The book was right! Why was she reading all these dumb lame books? She had so much better things, meaning she’s smart by de… Defu… From the start!

She giggled, leaning into the book as it continued to push these thoughts in her head in exchange for her actual knowledge. It started with the highest tier, her esoteric knowledge of the classics and of history, stripping it away before replacing it with ego, lewd and pretty thoughts, and gibberish nonsense. A Brief History of the Wagon Harness became A Briefs Latrine of the Dragon Hornies. The Life and Times of Morari the Maneless became The Pipe and Rhymes of Mommy the Brainless. So on and so forth, titles became perverted and wrong. However, Moondancer didn’t seem to notice or care. In her mind, it was all correct.

As Moondancer giggled and read on, she finally noticed something was off: Her chest was getting bigger! Her modest B-Cups were slowly being phased out for a much larger pair of DD’s, and from there they would keep growing. This was the first time she questioned if something was off. Naturally, she took to the book for answers.

By now, you may have noticed that your body has started to grow. It may be in your chest, your hips, your butt, or perhaps all three, but they are indeed growing! This is because your mind is taking in so much intelligence that you’re mind simply cannot handle it all! You’re becoming too smart for your brain to handle, and it’s making the rest of you as soft as your brain! Don’t worry, though. That just adds to your intelligence and beauty!

That… Made perfect sense to Moondancer! After all, with someone as smart as her, there’d be no way to get any smarterer without getting a bit bigger. Plus, with how pretty she was, now she was getting prettier! Prettier and sexier with her big boobies and swelling ass…

She drooled at the feeling, her glasses going askew as she kept on reading. Her sweater and skirt began to get a bit tighter on her with every sentence she read. Her cleavage became more exposed while her dress was quickly struggling under the growth of her widening hips. Yet, Moondancer didn’t care. The book was more important. She wasn’t done reading about being happy. Her smile grew and her horn sparked and glowed. The magic from her horn got pulled out and poured itself into the book.

If she were a bit more perceptive, she might have noticed the glow that book was giving off. She might have noticed how her magic felt weaker and weaker. She might have noticed her clothes ripping and buttons popping away as her new form became too much for her. She might have even noticed how her eyes were becoming more derped. Sadly for her smarts and happily for her reading, she was too engrossed in the book to care. She was almost done.

Pretty soon, you’ll find that reading the book is gonna be really, really hard! You might not be able to! That’s okay though! That’s actually a good thing! You’re now so smart, the book is too stupid for you! That’s right! You’re smarter than book! Smarter than all book! You’re always right, and everyone is too dumb for you!

This was the last thing that Moondancer read before the scrunchie holding up her hair finally snapped off, causing a bunch of hair to fall in front of her face. When she clumsily moved her hand up to look at the book, all of it was in some kind of gibberish she didn’t understand. She blinked one eye at a time, mouth hanging open with a line of drool sliding out. After some time, it finally clicked in her head.

“Me smurt! Moonie smurtest in da evar!” Moonedancer gave a breathy laugh and clapped. She danced about, her ass and tits jiggling about for any to see. When she eventually noticed that there was no one else, her now simple mind gave instruction to go out and brag!

She gave a big stumble around, her movements awkward and wobbling. Her eyes stayed derped and her tongue hung out of her wide smile. The unicorn was all but the biggest moron, and as she looked at herself in a nearby mirror, she saw how true it was. Her tits were huge, matched only by her wide hips and jiggly bubble butt. Her belly softened up a bit, going from beanpole thin to chubby and adorable. She was perfect for belly rubs, gropes, and fuckings.

Outside the library, Spike crossed his arms as he looked over at Twilight. “Are you sure about this? That place can get pretty risky if you’re not there with an assistant.”

“Oh come on, Spike!” Twilight laughed and waved her hand at him. “Moondancer is one of the top librarians. She mastered the Crystal Empire’s library with no problems.”

“Yeah, but that library didn’t have Cutie Mark changing spells, time travel spells, and things even Celestia didn’t trust to have out there.”

“Oh please, what could be there that could take down someone as brilliant as Moondancer?”

CRASH!!!

The two looked in shock as a massive hole burst through the library, and Moondancer, chewing on a book, spat it out with her goofy smile.

“Me got da meats!”

Spike shot a side eye at Twilight who quickly ran to her friend. “M-Moondancer?? What happened? Say something?”

Moondancer stared at the alicorn for a long time, eyes crossed, before pointing at the princess’s horn and laughing. “Duuhuhuhuh… Head bonur…”

“... What?”

Spike raised an eyebrow, taking a step forward. “Moondancer, what’s 3 plus 2?”

Moondancer scratched her head, slowly piecing together the complex equation in her head. She strained as best as she could, smoke coming out of her ears. “Tree… pus… doo… Tree… E… puh… pee…”

Ding!

“Peenie! Moonie need peen in puss! Lotsa segs!” She gave a dopey laugh, her pussy becoming wet.

Twilight looked at the books littering the floor, panic in her mind. “What… What book did this?? Why did Celestia keep something like this in this forbidden section, and why didn’t she keep it more secure??”

Spike shrugged, keeping Moondancer at arm’s length as she tried to reach for his cock. “I don’t know, probably the same reason she kept the time travel spell here…”

“Not now Spike!” Twilight said before she was suddenly pounced on and smooched by her friend. While the two handled her, the book that started it all slowly closed and began to disappear in sparkles, but not before revealing the author.

The Smarty’s Guide to Infinite Happiness

Written by

Eris D. Jesterton

Author's Note

Hope you enjoyed! Apologies for the delays for chapter 2 of Eris's Closet of Fun-sanity, I'm having trouble with that one. A bit of real life has been putting me down and pulled my attention towards writing stuff I want, even if it is a bit wanky for comfort.

On that note, let me know if you're interested in me trying a bit of longer-form lewd stories. I had a Daring Do one in mind. Stay safe out there!