Shining Armor and the Big Book of Ballbusting

by Nuttyhoof

Rating: mature
Tags: Twilight Sparkle, Porn, My Little Pony: Friendship is Magic, Fetish, Shining Armor, Sex, Violence
Length: 4715

Shining Armor spends a day with Twilight Sparkle doing whatever she wants. It turns out she wants to try ballbusting.

An old contract forces Shining Armor to spend a day with his sister doing whatever she wants. She uses this opportunity to try out some techniques from the Big Book of Ballbusting.

Warning: This story is all about ballbusting and not recommended to anyone who doesn't like cbt.

Kinks: Ballbusting/CBT/testicle torture, brother-sister incest

Written for the April Incest is Wincest contest.

Published 2019-04-23 21:40:01 UTC
Last updated 2019-04-23 21:40:01 UTC

Shining Armor and the Big Book of Ballbusting

Shining Armor looked out from the window of the Crystal Express. A letter from his sister had asked her to come to Ponyville alone, as she had just discovered something ancient he should see. He had been ruminating over what that something could be all day, his theories ranging from some kind of ancient horror to a rare edition of some old, obscure book. At least her writing had seemed more excited than worried, so it was probably best that he stopped worrying and just enjoyed the trip.

Finally the train arrived to the Ponyville station where Twilight was waiting for him, waving her hoof and smiling widely. Shining Armor let out a breath of relief as he got off the train; the old thing Twilight had discovered was indeed something nice, and he was right not to worry about it.

”Twily!” he exclaimed, hugging his sister as she trotted right up to him. ”It’s good to see you!”

”It’s good to see you too, big brother. Let’s get to the castle right away, there’s something I really want to show you!” she said, eyes shining with excitement.

The two ponies walked through Ponyville to the Castle of Friendship, exchanging stories about recent happenings since their last meeting. They eventually got to Twilight's castle, where she guided her brother straight to her library.

”Okay, now it’s time for the big reveal.” she said, trotting over to an old, colorfully painted chest as his brother waited curiously. She opened the lid, and carefully levitated out a piece of paper filled from edge to edge with text written in crayon.

"Okay Twily. What exactly is it?” he asked, tilting his head in an attempt to make some sense of its squiggles.

”It’s my first written contract! Maybe even YOUR first written contract too!” Twilight beamed. Shining Armor found it cute how excited she was over a simple piece of foalhood nostalgia.

”Heh, that’s cute!” he complimented. ”Do you remember what it was about?”

Twilight nodded. ”I sure do! Remember when you were babysitting me and I wanted to make a hot air balloon for Smartypants?”

”Uh huh.” Shining nodded, encouraging Twilight to continue with the story.

”You were worried that I would start a fire or blow up the house or something, and said that once I got my own house we could spend the whole day doing whatever I wanted.”

Shining Armor laughed. ”Yeah, I guess you’ve had your own house for a good while now. What did you have in mind?”

”Well, when we made the contract I dreamed of you taking me to the royal library, but I already got there as Celestia’s student and now even own a library of my own. Which, since I’m a princess now, technically also counts as a royal library.” Twilight explained. She rubbed her hooves deviously and continued talking. ”But there’s something else I thought of when I got a little older...”

”Oh?” Shining Armor asked, raising his eyebrows curiously.

”I want you to... lick my hooves!” Twilight said, clapping her hooves with a girlish giggle.

”Really?” Shining asked dumbfounded. That was an odd request to hear from someone like Twilight, and especially from Twilight herself. ”You want me to lick your hooves? Is it some kind of femdom thing?”

”I don’t know.” Twilight responded, a little embarrassed at the question she should have been expecting. ”Stacked Cards in the Wildmare Chronicles always made stallions lick her hooves, so... I was wondering what the point of it was.”

Shining Armor let out a laugh as his innocent sister blushed, playing sheepishly with her hooftips. ”Oh Twily! It’s kind of a dominance thing. She was enjoying the power trip of making somepony do things for they'd never have wanted to do.”

”Oh.” Twilight rattled her mind, the answer raising even more questions. ”But... why licking hooves? There must have been more useful things she could have used them for!”

It was Shining Armor’s turn to blush. ”Well... it’s... kind of a sex thing.” he said, rubbing the back of his neck in embarrassment of having to spell this out.

”But why hooves?” Twilight exclaimed, waving her hooves in the air for emphasis. ”What’s supposed to be sexy about making somepony lick your hooves?”

Shining Armor shrugged. ”Well, some ponies just get off from busting somepony’s balls like that.” he said for the lack of a better answer.

Suddenly Twilight’s eyes lit up as she practically jumped with excitement. ”That’s it!” she beamed, trotting over to a bookshelf, and with librarians expertise pulled out a single large tome from within her thousands of books.

”What? The hoof-licking thing?” Shining Armor asked as his sister flipped through the book to confirm she’d had the right one.

”No, something much better!” Twilight beamed, giddily trotting back to her brother with the book levitating by her side. ”Ballbusting!”

”...What?” Shining Armor asked incredulously.

”Ballbusting! It’s the perfect activity for the day!” Twilight chirped. ”It’s dominating, something you wouldn’t normally do, and it makes sense being sexy too!” she said, giggling at the last part.

He stared back and forth between Twilight and her book, stammering for words as Twilight levitated the book in front of her to read its back cover blurb.

”Big Book of Ballbusting, Volume 1. Fun things to do with balls, from teasing tickles to knockout kicks.” she finished, turning her eyes back to her brother and smiling gleefully. His wide eyes and downturned ears implied that he would have gone pale if his coat hadn't already been white.

”V-very funny Twily, but you can’t be serious, right?” he asked hopefully, backing away from her sister just in case.

”Yes I am.” Twilight said with determination, levitating their old contract to show it to her brother. ”It says right here that when I, Twilight Sparkle, would have a house of my own, we would spend a day doing exactly what I want and you, Shining Armor, would have to go along with it.”

”But we were just foals!” Shining armor exclaimed. ”You can’t kick me in the privates because of something we signed in our foalhood!”

Twilight smiled smugly and shook her head. ”And that’s why I asked our parents to sign it as well. I have always taken paperwork seriously!”

”But... but...” Shining stammered, having already backed himself in the corner both figuratively and literally.

Twilight let out a relieved laugh and levitated the contract back into its box. ”Don’t worry BBBFF, I’m not going to hurt you.” Shining let out a sigh of relief before Twilight continued. ”Much.”

”Good, I guess.” he replied, relieved that at least his sensitive bits wouldn't be in any serious danger. ”So... what would you like to do?” he asked, hoping his sister would have something not balls-related in mind.

Unfortunately, Twilight already had her face buried between the pages of the book. ”Well, the Wingtip Teaser doesn’t seem so bad for a starter. It’s described as soft and seductive so you should even like it!”

”Well, okay Twily.” he sighed in resignation as he turned around, spreading his legs and lifting his tail to expose his balls to his sister. She hadn’t even done anything yet but he was feeling molested by her. He shuddered as felt the ticklish feathers of Twilight's wingtip tracing the outlines of his testicles.

”Funny, I didn’t expect them to move around like this.” his sister mused as she caressed his balls. He was embarrassed, sure, but this was actually rather pleasant.

”Okay brother, here it comes.” she said. Shining Armor blinked in surprise; wasn’t she teasing him already? Twilight’s feathers drew away from his sack, only to return fast and hard from below, slapping the underside of his balls.

”AIEE!” Shining armor squealed, jumping forward and landing with his knees bent and shaking. The slap would have barely registered anywhere else, but striking right in the balls it had really hurt! ”O-owww...” he whined, breathing rapidly to get over the shockwave of pain still echoing through his nuts.

”Oh wait, that diagram was for the Upflap Slap! Here’s the teaser.” Twilight corrected herself, reaching her feathers to tickle her brothers dangling balls again. He couldn’t appreciate the soft touch over the ache in his nuts, but at least the slap had been shallow enough that the sharp pain was already growing smaller.

”Okay Twily, now that that’s over with-” Shining Armor said as he started turning around, only to be interrupted by Twilight.

”U-uh! There’s a lot more I want to try before I let you go!” She said, gesturing him to turn back around.

”A-alright. Just be more gentle this time.” he requested, turning his flank to her and assuming the position.

”Okay brother! Let’s see... something simple from the earth pony section... A-ha! Uppercut!”

”Wait what?” Shining’s eyes widened as he heard the term. Before he could react, Twilight’s upturned hoof slammed into his testicles from below, squashing them firmly against his body. Shining Armor collapsed onto the library floor gasping for breath, instinctively grasping his balls with his forehooves to protect them from any further damage.

”AAGH! The pain! Oh sweet Celestia the pain!” Shining moaned, kicking his feet and rolling on the floor. ”You said you were going to be gentle!”

Twilight Sparkle walked next to his prone brother, admiring her hoofwork with amusement. ”I did! The book told to use full strength for this and I used, what, one tenth?” she mused. It was funny how overdramatic her brother was about his balls when she had barely bumped them at all. No wonder the first chapter of the book had been all about how dramatic reactions like screaming and crying were common from busted stallions and nothing to get alarmed about.

”Ow, ow, oww... What kind of pony would even write such a vile book?” Shining Armor asked, rolling onto his back and moving his hooves apart to check that his balls were still intact.

Twilight sat down next to him and set the book down next to her. ”That's actually a very interesting story! You see, it’s a compilation of many sources, the earliest bits dating all the way back to the Arena of the Two Sisters..."

Shining Armor stopped paying attention after a while, but every minute she’d spend lecturing was a minute she’d stay away from his balls and a minute closer to the end of this day.

”...and the rest was split off into the Big Book of Ballbusting Volume 2.” Twilight concluded. ”I normally have both books, but the Volume 2 is loaned out right now.”

”Uh-huh”, Shining armor muttered.

”There’s also an entire section of techniques for holding a stallions attention, useful for sisters who notice their brothers haven't been paying attention.” she said as she grabbed the book and skimmed it over for a suitable technique.

”Uh-huh... wait, excuse me?” Shining Armor just realized what she had said, but his sisters hooves were already clamping down around his balls.

”Gotcha!” she exclaimed triumphantly, feeling his trapped balls slipping around between her hooves.

”AAA! LET GO LET GO LET GO!" Shining Armor squealed in panic as he desperately flailed his forehooves at Twilight's, trying to get her to release her vice grip on his balls.

Twilight smiled smugly, in absolutely no hurry to let go. ”U-uh, I got you by the balls big brother! That means I’m in control now!”

”Please let go! I’ll do anything! I’ll let you do that wing-thing again!” Shining begged for his poor balls. She may not have noticed it, but her hooves were constantly moving around and his balls squirmed and slipped between them with nauseating sensations.

Twilight loosened her deathgrip but didn’t let it go entirely. ”I’m glad we came to an understanding.” she said in a sultry voice. ”But if you try to shrink your part of the contract...” she added, giving his balls one more hard squeeze before letting go.

Shining Armor yelped as his balls got squashed again, rolling onto his side and curling up to nurse his throbbing nutsack. Twilight proudly looked down at him with immense smugness, having never felt so much over anypony else before. She now understood perfectly where the idiom ”have him by the balls” came from, as holding his brothers vulnerable eggs in her grip had him literally begging for mercy just like that. She wanted to grab them again and keep squeezing even harder and longer this time, but decided not to be too harsh on her poor big brother. Playing with his nuts had gotten her excited though, so she decided to instead make him do something else she’d never dared to even ask before.

”Lick me.” She said bluntly, biting her lower lip.

Shining opened his eyes and looked at his sister towering next to him. ”Okay okay, I will!” he agreed without hesitation. He thought Twilight actually wanted him to lick her hooves this time, but instead she turned around and maneuvered her body backwards above his. His pupils dilated as he saw her dripping wet marehood wink above his face as she lowered herself on top of him.

Twilight’s tail twitched with anticipation as she scooched back closer to Shining’s face, placing one forehoof threateningly on top of his sore balls. ”Lick it well big brother, and maybe your princess will go easy on these two.” she chuckled.

Shining Armor complied, wrapping his forehooves around Twilight’s hips and giving her marehood a good long lick. She let out a pleased moan and proceeded to rub his balls softly, the sensation in his testicles a mixture of pain and pleasure. Luckily he’d had plenty of practice with Cadence, making him guaranteed to satisfy his less experienced sister. He was getting aroused himself, and soon felt his sisters hooves caressing his own hardening member.

”Ah! You’re so good at this!” Twilight moaned, hugging his cock against her chest and sloppily kissing the edge of its flare. She soon got its tip into her mouth, sucking deeply as she reached down to give his balls a gentle squeeze.

Shining’s body tensed, but he kept working with his tongue. Twilight was breathing rapidly through her nose, her mouth full of his cock and a hoof frantically rubbing up and down his shaft. He sensed that she was getting close to her orgasm and slowed down, letting his sister help him catch up to her. She squeezed his balls again, rubbing her hoof over the vulnerable ovals and making Shining Armor squirm, trying to compensate to the pressure with his hips while pressing his muzzle against his sisters marehood to keep from screaming.

”Oh yes!” Twilight moaned, quickly bopping his brothers cock back into her mouth and sucking it up and down. Shining Armor bucked his hips, partly to get off faster, partly to escape the hoof inexpertly mauling his balls. His sister came first, her pussy clenching in front of his face as her scream was muffled by the tip of his cock. She pressed down on his balls hard, the combination of pain, pleasure, and the scent of her marehood finally managing to take Shining Armor over the edge, his cock erupting in her mouth as he pulled his muzzle off her marehood to scream.

Twilight managed to swallow the first squirt of his cum, the second one filling her mouth and forcing her to release his cock to breathe. Mercifully this also distracted her from his balls, allowing relieved Shining Armor to ride out the rest of his orgasm while she caught her breath.

His cock twitched a few more times as it shot its load, his scream dying out and rear legs flopping limply on the floor. Twilight let out a satisfied moan, still shuddering from her orgasm as she rested her head down between his leg and cock. The ache of his nuts was unbearable, but he didn’t dare to interrupt his sister while she rested. After a minute, she gave his balls a soft kiss and finally stood up.

”That was amazing!” Twilight sighed happily, stretching her legs while Shining Armor curled up to nurse his balls. ”I’m gonna get cleaned up, you can take a break until I get back. There's snacks in the kitchen if you want.” she chimed, levitating the Big Book of Ballbusting with her as she trotted out of the room.

Shining Armor laid on the ground for a good while, just waiting for the thumping pain in his balls to go down. It took a while for him to register what Twilight had just said. Seeing the chance to escape his fate, he rose on his weak, wobbly legs and headed out of the library. He would apologize later and claim there was a martial emergency or something that forced him to leave early, but for that to work he’d first have to get out of the castle.

Wincing at every step, Shining Armor made it through the long hallway of the castle. He could already see the front door ahead of him when he suddenly came to a painful stop, his balls yanking him back as they froze in mid-air.

”Going somewhere, brother?” Twilight asked behind him, holding his balls with her telekinesis.

”Just saving my balls from the clutches of a mad mare” is what Shining Armor wanted to say, but realizing the mare in question was holding his testicles he decided to rethink his words. ”I was just... looking for an ice pack?” he suggested sheepishly.

Twilight tutted him, seeing right through his lie. ”You’ll get all the ice you want when we’re done big brother, but now it’s off to the bedroom with you!” she said in a singsong voice, pulling his balls with her as she started walking back along the hallway. Shining Armor yelped, having no choice but to trot backward by her side to keep from being dragged by his balls.

Twilight hopped onto her bed and released her grip on his swollen testicles, allowing him to collapse on his knees as he gasped for air. ”Twily... please...” he begged between pained breaths, but she was already reading her book for more diabolical methods to maim his babymakers.

”Ooh! The Yakyakistanian double smash looks very powerful!” she spoke to herself, filling Shining Armor with dread. The mental image of his sister smashing his balls with the fury of a yak was already enough to elicit sympathy pain in his battered testicles.

”Twilight, please! I can’t take it anymore!” he begged in despair, covering his agonized balls with his hooves like it was going to protect them.

”Oh shush, we have barely even started!” Twilight reminded. The tome had easily hundreds of pages and they’d only tried three of them, one of them by sheer accident.

”But they're my balls!” Shining Armor cried, plopping on the bed to desperately hug Twilight's forelegs. ”You have no idea how much it hurts to get hit in the balls!”

Twilight looked down at her brother, begging her with big, wet, puppydog eyes. Aww, busting his balls when he was like this would be like kicking a puppy.

Twilight petted her brothers mane, comforting him softly. ”Alright Shiny, how about we try just one more trick from the unicorn section and then call it a day. How would that sound?”

”A-alright.” her brother reluctantly agreed as he got back on his hooves. This was probably the best deal she'd be offering, but at least it meant the torment on his testicles would then finally be over.

”That’s the spirit!” Twilight said, giving his cheek a reassuring nuzzle. ”If I had to pick one from the spells I've read thus far, this would have to be my favorite: Ball Lightning!”

Twilight lowered her head as her horn started to glow. Shining Armor felt a tingling sensation around his balls, slowly escalating into small, errant pinpricks of pain. He looked down between his legs and saw a blue-ish energy field surrounding his sack, snaps and pops of static electricity sparkling within it as Twilight’s spell grew in strength. He jumped in the air as the first spark of miniature lighting jumped between the cloud of energy and his testicles, snapping it sharply like a tiny whip. He opened his mouth in a silent scream as the reality of what was happening struck him, the second and third sparks hitting his balls in quick succession.

”Oh no, don’t cover them! I want to see!” Twilight reminded as her brother looked like he was going to curl up again. Maintaining the glow on her horn, she stepped over to his side and laid down to watch the storm around his balls from up close.

”Gnn!” Shining grunted, locking his legs straight as the localized storm around his balls grew stronger, the sparks of electricity striking his balls from every side in rapid succession. He started screaming as the miniature lightning bolts got stronger and stronger, the searing pangs of pain striking through his sensitive testicles. Unable to take it any longer, he fell down on the bed and threw his front hooves down to his groin in a desperate attempt to dissolve the cloud of pain.

”Hey!” Twilight yelped, annoyed as the balls she was admiring moved away from her. His brother was screaming unintelligibly as he tried to reach for his groin, only to be blocked by a force field tinging against his hooves. His balls were in a dimension of pain and there was nothing he could do about it.

Twilight adjusted her position to watch the tortured balls now on the bed, happy that his brother had given up trying to reach them and was now holding his forehooves against his cheeks instead of blocking her view on the action. She watched with glee as the storm reached its crescendo, the surface of his ballsack visible through the thick clouds thanks to the strobe light of constant lighting. For Shining there was not a moment of respite, each bolt striking his testicles from a different angle, paced just far enough that he could sense every strike of lightning individually. The storm’s peak lasted only fifteen seconds but for Shining Armor it was like an eternity of electrical hell localized entirely on his balls.

After its short-lived fury was over, the cloud of magic dissipated rapidly with only a few errant sparks surprising the now coarse-voiced male. Once the field of energy disappeared with one last puff of ozone-scented smoke, Shining armor slowly reached a wavering hoof down to soothe the piercing ache of his two abused nuts. Oh Celestia, how he had just wished just to touch them comfortingly!

”That. Was. Amazing!” Twilight yelled excitedly as she clapped her hooves. ”It was maybe the most complex spell in the book and we did it without a hitch! You’ll have to tell me all about how it felt like!”

Shining Armor just laid on his back, shaking and breathing in quick, shallow breaths. His balls ached with such intensity that he didn’t dare to roll on his side for the fear of feeling them shifting against each other. His pupis shrank as she saw his sister stand up and take a step toward his abused genitals.

”Wow, their fur is still standing up!” she giggled, pointing a hoof at his electrocuted balls. Noticing how he flinched at her hooftip approaching his gonads, she set it back down and gently reassured him. ”Don’t worry brother, that was the last experiment for the day. Consider your contract fulfilled!”

He watched as she levitated the old crayon contract to her along with a quill and ink, marking down its official date of completion. Shining Armor let out a sigh of relief, the symbolic gesture taking a heavy load off his balls. Twilight set the items back on her desk and looked down at her brother.

”So, what would you like to do now?” she asked.

”A bag of ice would be nice...” Shining Armor squeaked, his voice several octaves higher than normal.

”You got it. Don’t go anywhere!” Twilight giggled, knowing well that her brother wasn’t going to move an inch in his condition.

Twilight soon returned from the kitchen with a large bag of ice. ”Here you go BBBFF, I hope it helps!" she said, plopping the bag down on her brother’s crotch and causing him to jump as the weight of the bag impacted against his tender balls. ”Sorry!” Twilight apologized, blushing sheepishly.

Shining Armor groaned as the wave of nausea from his already swollen nuts getting hit traveled through him. She patted his head, letting him recover a little before speaking again. ”Would you like me to relieve them?”

Shining Armor blinked. ”Excuse me?”

”I read that ejaculating is the most efficient way of mitigating pain after a nut shot. So maybe I could... suck your dick?” Twilight stammered, nervously fiddling with her hooves. Shining Armor looked at her, feverishly thinking about her suggestion.

”Thanks Twily, but I think I'm in too much pain to-” Shining Armor was suddenly silenced, his sister on top of him and kissing him passionately. He reciprocated to her kiss, wrapping his hooves around her back as she lowered her body onto his.

Twilight broke the kiss and looked straight into her brothers eyes. ”Let me take care of you Shiny. I promise to be gentle.” she said, gently petting his mane.

Shining Armor pulled Twilight into another deep kiss, doing his best to ignore his mind-numbing pain. They kissed for a while before Twilight slowly stood and backed down towards his genitals.

”Be gentle!” Shining reminded, scared and aroused as his sister laid down between his legs. She rubbed his sheath with her forehoof, coaxing his member to slowly start growing. She leaned forward to lick it’s emerging flare, eliciting the first pleased moan from him.

Shining Armor’s member grew to its full lenght, as he enjoyed the feeling and the view of his sister servicing him. She used her hooves to guide the tip of his cock into her mouth, starting to slowly and passionately fellate him. He reached his forehooves to softly caress her mane, while she placed her hooves on his cock and picked up her pace.

”Ahh, keep going!” Shining said, closing his eyes and focusing on the pleasant sensation. His sister sucking on his cock was like a beacon of hope in his sea of agony, a reminder of why it was good to be a stallion. Her sensual moans and delicate hooves against his strong stallionhood was exactly what he needed right now. Her chest was pressing the bag of ice against his balls as she moved, but the relief he was getting from having his malehood serviced was too good to interrupt.

”Ah! Twily! I’m coming!” he cried, feeling Twilight inhale in preparation. Shining Armor let out a satisfied groan as the orgasm hit him, his cock twitching and pumping its load into his sisters mouth. She did good job swallowing what she could, the last spurts spilling out the sides of her mouth as she struggled to hold her brothers flare inside it. He rode his orgasm to its end, the afterglow leaving him with a warm counterpoint for his otherwise unbearable pain.

”Thanks, sis! I needed that!” Shining Armor said panting, his sister moving up along his body to snuggle him. She gave his balls one more glancing blow as her rear leg slid over his groin, but soon she was lying comfortably by his side. Shining armor turned to his side, the pain of his tender nuts flopping over his leg well worth getting to hold her face to face.

”Anything for you, BBBFF.” Twilight said, reaching a hoof to gently cup his throbbing testicles. She had never mentioned it about her plans for today, but tending and caring for his brother had always been on her wish list.

The End.

Author's Note

This is my second story for the Incest is Wincest writing competition. This time I put the warning in the description right away to keep anyone from wandering in thinking this was a normal clopfic with just an occasional low blow somewhere along the way. :twilightsmile: