Unbridled Love

by Jest

Rating: mature
Tags: Sweetie Belle, Anthro, My Little Pony: Friendship is Magic, Alternate Universe, Romance, Porn, Fetish, Spike, Comedy, Gabby, Sex, Ember
Length: 4375

Gabby, Ember, and Sweetie Belle all have a mutual crush on a certain dragon. Each one of them is determined to win his affections, even if it means having to buy all new bras.

Gabby, Ember, and Sweetie Belle all have a mutual crush on a certain dragon. Each one of them is determined to win his affections, even if it means having to buy all new bras in the process.

This was a request for a patron and was viewable earlier for said patrons. Head over here if you want a story like this for 5$ or to see stories early for just 3$!

Kinks. 18 plus adults enjoying some breast Growth. No really, thats it. Oh and I guess some poly stuff later with light non straight shipping.

Published 2020-10-16 22:40:02 UTC
Last updated 2020-10-16 22:40:02 UTC

Bursting Seams

Sweetie Belle tapped her hoof and looked around as she leaned against the wall of Ponyville’s newest library. The door next to her was closed, and curtains hid whatever was going on inside its book filled halls, irritating the woman. The day itself was nice, with only a few clouds obscuring the bright blue sky, though Sweetie Belle remained nervous despite the pleasant atmosphere.

Not even the scent of fall, and the dry leaves blowing on the wind could alleviate the anxiety which plagued her. She was tempted to pull out and read the note Spike had sent to her this morning, but she had already read it a hundred times at this point. The invitation given to her specified that she should be outside the library at two in the afternoon, and now that time had nearly arrived yet nothing had happened.

The library remained dark, and Spike had not revealed himself, making Sweetie Belle’s begin to grow a little worried. Tugging at her pink dress, the unicorn glanced into the nearby window in order to view her reflection, and flick a stray curly hair from her face. The rest of her hair had held its place, the bouncy light purple and pink locks hanging down just past her shoulders.

Her outfit, though simple, fit her overall color scheme and alabaster skin quite well, with a silver necklace and simple teal shoes rounding it out. The dress she wore had short teal sleeves the same color as her shoes that ended in a set of simple silver bands of cloth. The sight was a pleasing one, and Sweetie Belle was quite happy with her choice of wardrobe, though it wasn't quite perfect.

Lifting her petite breasts, the girl cursed her unfortunate genetic luck, and wondered if she was adopted considering just how munemental her sister’s mammarries were. To say her own were small would be an understatement, and it was the one black mark on Sweetie Belle’s otherwise nearly immaculate appearance. The unicorn silently hoped that she was some sort of extremely late bloomer, though considering her eighteenth birthday was six months behind her, that seemed unlikely.

“Puberty did nothing for you girls,” she muttered, before sighing and turning around, only to almost walk right into an irritated looking dragon. “Eep!”

The blue scaled female snorted irritably. “What are you doing here?”

Sweetie Belle blinked, and looked the other girl up and down, noting that she wore a simple purple hoodie, as well as a pair of shorts which were two shades darker. Her short blue hair had been done up into a ponytail, leaving behind only a single bunch to hang down her face like a dagger. The draconic woman was strong, with visible muscles, large leathery wings, horns that were several orders of magnitude larger than Sweetie Belle's singular one and a tail which swished slowly behind her.

She also had nearly the exact same bust size as Sweetie Belle, which for some reason made the diminutive unicorn feel slightly better about herself. “I’m waiting for Spike, why are you here?” Sweetie Belle replied.

The dragon’s grumbled, her red eyes narrowing on the shorter woman. “A potential rival then. How do you ponies handle such things? Because if we were back home we would settle this in the lava field.”

Sweetie Belle gulped, raising her hands. “R-rival, what are you talking about? Unless your here for… Ohhh.”

The dragon nodded slowly. “My name is Ember, and I was invited here with the assumption that I would take Spike as my mate, or partner as you ponies say.”

“Err yeah. Didn't we meet a few years ago?” Sweetie Belle replied, scratching her head. “I think it was at a party.”

Ember shrugged. “We might have. I admit I am still struggling to learn the names of so many different ponies.”

“Well I’m Sweetie Belle,” offered the unicorn, who extended a hand.

The dragon took the offered limb and shook it vigorously. “Now that we have exchanged names we can decide on how to settle our claims on Spike,” Ember declared.

“Spike is his own dragon you know. You can't just claim him,” Sweetie Belle replied, pulling back her hand and clutching it against her chest.

“Nonsense,” Ember proclaimed. “He may have been raised by ponies, but he is still a dragon, and as such it is a female’s duty to take him as her partner before someone else does.”

“Really? Cus back home it's totally the other way around,” remarked a voice.

The two females turned to see that they had been joined by a griffon woman, who smiled at them both, a clawed hand extended in greeting. “I already know Sweetie Belle, but I don't think I’ve ever met you miss….” offered the griffon.

“Ember,” replied the dragon in a low tone. “I assume you are here to stake your claim on Spike as well?”

The griffon blinked owlishly. “I was invited out here by Spike, but I wasn't thinking of claiming anything.”

Ember eyed up the new comer closely, as if inspecting her for any possible weaknesses which she could exploit. She started with the long two tone grey feathers which grew atop the griffon’s head were tied into a ponytail, giving the woman a cherry demeanor. Which was only further emphasized by her smiling face, small beak, plain grey jeans and loose sweatshirt she wore over her petite chest.

This last fact made Ember feel a little more confident about her position for some reason, an opinion Sweetie Belle secretly shared as well.

“Well that's good, because Ember here has a strange view on romance,” Sweetie Belle remarked.

“I do not,” Ember stated, only to deflate slightly. “Is it really that bad? My dad tried to give me pointers but I think his suggestions are a few hundred years out of date.”

“It's not… that bad,” Gabby replied kindly.

Sweetie Belle grinned. “So, Gabby. I don't suppose your note says anything other than to meet here, does it?”

The griffon shook her head. “I’m afraid that's it Sweetie Belle. I assumed Spike called me here in order to talk about something well, personal but after seeing you all here I’m not so sure.”

“Personal?” Ember inquired, raising an eyebrow.

The griffon blushed, tucking her chin into the fluffy collar of her sweater. “I may have confessed to him the other day.”

Sweetie Belle’s eyes narrowed. “That wouldn't have happened on tuesday by chance would it?”

Gabby nodded, the griffon nearly disappearing into her sweatshirt. “Oh this is so embarrassing, I knew I shouldn't have said anything,” she muttered.

“So that was why Spike looked at me so strangely,” Ember began. “You two must have both staked your claim as it were the same day I decided to express my own desire to ‘date’ as you ponies say.”

“Huh,” Sweetie Belle murmured. “That explains why Spike looked more confused than surprised when I told him how I felt.”

Gabby pulled her head out of her sweatshirt and gasped. “Does that mean he wants to date all of us at once, and maybe offer that we could date each other?”

Ember quickly shook her head, a small blush playing out across her features. “I don't think so. That kind of thing isn't normal for dragons, or ponies. I think, though… Nevermind.”

“It's not super common, but it still happens,” Sweetie Belle replied.

The sudden turning of a doorknob stopped the conversation dead in its tracks, and each woman quickly went over their appearance. By the time the door opened, each prospective partner was looking their best, wearing wide, expectant smiles. Expressions which Spike mirrored, the dragon grinning excitedly, his arms spread wide.

“Girls, you made it!” Spike exclaimed.

The freshly eighteen year old dragon wore a baggy pair of blue jeans, and a green t-shirt beneath a deep purple zip up hoodie. Though he was only just barely an adult, he still towered over all three of the girls, the lanky dragon only just barely beginning to fill in his towering frame. With a boyish charm that few could resist, the male grinned wider still, and stepped to the side, extending an arm invitingly.

“Please, come in,” he offered.

“What is this about Spike?” Sweetie Belle asked as she stepped inside the wide open first floor of the library.

“Yeah, you haven't brought us here to fight in some sort of ritual combat to weed out the strongest possible mate, have you?” Ember inquired hopefully.

Spike rolled his eyes. “You’ve been listening to your dad too much again. No, I have not brought you all here to have you fight.”

“Well that's good because I left my knuckle dusters at home,” Gabby quipped as she followed behind Ember.

“Err right,” Spike muttered before closing the door. “The real reason I asked you all to come was to discuss what happened on tuesday.”

Sweetie Belle awkwardly clutched her dress and rocked back and forth. “So does that mean you made a decision?” She hesitantly asked.

“Yes, and no,” Spike replied, the dragon walking over to a nearby table which had a bottle of green liquid sitting atop it.

“Well which one is it?” Ember pressed.

“I have decided the winner of a special challenge. Don't worry it won't be something violent or anything like that,” Spike quickly dismissed.

“Then what is it?” Gabby inquired. “Does it have something to do with that spooky looking bottle?”

Spike snatched the bottle off the table and walked back over to the three women. “It does, but before we get to that I assume you all know of my… predilection towards a certain type of woman. Correct?”

Sweetie Belle blushed, her mind conjuring images of all the times that her friend had fawned over Rarity’s truly titanic rack. “I do,” admitted the unicorn.

“Oh… that,” Gabby muttered.

Ember raised an eyebrow and looked around the room. “Am I the only one who doesn't know what he's talking about?”

Spike coughed awkwardly into his clawed hand. “I er, well I like women with a large cup size.”

Ember grinned. “Then I have already won.”

Sweetie Belle peered closely at the other woman’s chest. “What do you mean. You’re as small as the rest of us.”

“What? I’m the second tallest, besides. I can put away over forty cups of wine before succumbing to its effects,” Ember proudly proclaimed.

Gabby leaned close to the other woman. “He means boob size,” whispered the griffon.

Spike sighed. “Thank you Gabby. I forget dragons don't usually wear bras.”

Ember looked down, and then around the room, a frown forming on her face. “I suppose we are evenly matched in that regard,” she exclaimed.

“Indeed you are. Which is why I propose we settle this with a game I’m calling breast chicken,” Spike declared, raising the bottle into the air.

“That is an interesting name,” Sweetie Belle remarked hesitantly.

“How do you play, exactly?” Gabby inquired.

“Is it a contest to see who eats the most chicken breasts?” Ember replied.

Sweetie Belle gagged. “Please tell me that's not it.”

Spike rolled his eyes. “If you guys let me finish talking you would already know by now, and no it is not an eating competition of any kind.”

“Well it's a good thing I already ate then,” Gabby exclaimed.

“You all know how to play chicken right?” Spike asked, the three women all nodding in turn. “This bottle contains a breast growth potion made by Zecora and you will take turns taking a sip of it. You can back out any time, and the last person left standing will be my new girlfriend.”

“Is it permanent?” Sweetie Belle asked.

Spike nodded slowly. “Yes. Though they will shrink a bit after the first few hours.”

Gabby chewed on one of her claws, the griffon eying the potion closely. “Are you sure it's safe?”

“Zecora said it was tested extensively, and also that you can't overdose on the stuff, even if you wanted to,” Spike explained.

“Gimme that,” Ember demanded, swiping the bottle out of Spike’s hand, and popping the cork.

“Wait, shouldn't we talk this out like adults?” Sweetie Belle pressed. “This doesn't seem like the best idea.”

The female dragon paused just as the glass reached her lips. “Why would I do that? With this even if I lose at least other dragons won't constantly confuse me with a child.”

“I’m with Ember here. I’m tired of being teased,” Gabby added. “And something tells me you are as well.”

The unicorn bit her lip. “I mean I guess it would be nice to finally no longer be the president of the itty bitty titty committee.”

Gabby gasped. “They called you that too? I was the treasurer of the committee!”

The pair were distracted by the sound of gulping, and spun around to watch as Ember swallowed an entire mouthful of the stuff. With a gasp, she pulled back the bottle, and stood proudly, hands on her hips and a grin on her face. Spike on the other hand, was taking a nervous step back, his eyes glued to the female dragon’s chest.

After a few tense moments of silence, Ember blinked and looked down. “Does it not wo-” was all she managed to utter before her sweatshirt suddenly rose to reveal her midriff.

The fabric strained to contain her growing breasts which had quickly ballooned from their very modest A cups all the way to at least a D. Ember’s eyes grew along with her breasts, and a proud look crossed her face a second before she toppled forward. The woman managed to utter a yelp of panic before she was laying face down on the ground, having been too surprised to even catch herself.

“Are you alright?” Spike offered, extending a hand.

Ember winced, and took the male’s hand, allowing herself to be pulled back up into a stand. “That was a lot of weight all at once,” she muttered weakly.

“Wow it really works,” remarked Gabby, who stepped in close and poked one of Ember’s tits.

“Hey, those are still tender you know,” Ember barked, the dragon clutching her chest protectively.

Gabby recoiled. “Oops, sorry.”

“So, do you two give up?” Spike questioned.

“No way,” declared the gryphon, who grabbed the potion and tilted it back, swallowing a mouthful of the liquid.

Sweetie Belle watched closely as the other girl winced briefly before looking down at herself expectantly. Sure enough, a second later and her tits swelled to nearly fill her sweatshirt, growing to nearly the exact same size as ember’s had. Then, just as Ember’s grin became particularly proud, Gabby’s breasts surged outwards one final time, becoming slightly larger than the dragon’s.

“Ooh those are heavy. You werent kidding,” Gabby remarked, hefting her breasts individually and wincing. “Kinda tight in this shirt now though.”

Ember gnashed her teeth. “I was so close.”

Spike took the bottle back before turning to Sweetie Belle. “Do you want to keep going?” He asked.

Sweetie Belle bit her lip, and really thought about it, silently weighing the pros and cons. On the one hand it was permanent and would necessitate buying a whole new wardrobe if she went through with it. While on the other hand, she finally had the opportunity to no longer be the smallest of her friends, that and Ember’s comment had gotten to her.

Everyone still treated her like she was a child, and the unicorn was sick of being babied by both friends and family. If this helped to make everyone see her as the adult she rightly was, then Sweetie Belle would do it. Getting the chance at winning Spike’s heart was just a bonus at this point, even if it was a particularly pleasant little bonus.

Taking the bottle, Sweetie Belle swallowed the biggest mouthful she had ever swallowed at once before, unbothered by the slightly acidic taste of the potion. Spike took the bottle back before taking a step back as well, all three of the observers all watching Sweetie Belle’s chest intently. The unicorn herself was almost fearful of what was going to happen, but after only a slight pinch, the change occurred.

Though she had been ready for the increased size and weight, Sweetie Belle’s dress was not, and her breasts spilled over the front. Eyes wide, Sweetie Belle struggled to stuff her still growing tits back into her now ruined top, only to find that it was simply impossible to do so. The unicorn quickly gave up, and merely cupped her hands over her nipples, her face now so beat red that she would make a tomato jealous.

“Holy crap,” Spike muttered.

“No kidding, that's amazing,” Ember murmured.

“Your like a double D at least!” Gabby happily proclaimed, prodding Sweetie Belle’s naked tit flesh.

“H-hey!” Sweetie Belle stuttered. “Those are delicate!”

“And freaking huge,” Spike added.

“It's not over yet,” Ember declared, grabbing the potion and downing another mouthful.

Spike merely stood there weakly, his hand extended and acting more or less as a table as well as an observer.

Once again, the three creatures stood there and watched like before, with the only difference being that Ember placed her hands over her breasts before they burst through her clothes. The sweatshirt didn't make it easy though, but after a moment of strain, the cloth was torn to shreds, leaving a gaping hole in the front. A hole which was filled with a set of absolutely massive breasts, each one jiggling slightly as they finished growing.

The sea of cleavage was an enticing sight, and though Spike wanted desperately to dive headfirst into it, but he held back. Even while he thought about how good it would be to squeeze the dragon’s F sized fun bags and feel them fill out his hands. Shaking his head, Spike looked up to find that Ember wore a confident expression on her face, one marred slightly by the blush that she also wore.

“Victory,” Ember exclaimed, thrusting her chest out in emphasis.

“It's not over yet,” Gabby countered, the woman grabbing the potion and downing another mouthful of the stuff.

Once again everyone found themselves staring at another woman’s chest expectantly, wondering what was going to happen. Ember was nervous of losing her dominant position, while Sweetie Belle was contemplating if she would even keep going. Gabby meanwhile was busy pulling off her shirt, unbothered by the fact that she had inadvertently flashed everyone in the room as she had not worn a bra.

By the time the peice of fabric was gone, the potion did its work, and the griffon's tits had ballooned to nearly the exact same size as Ember’s. Grinning from ear to ear, Gabby squeezed her jiggling breasts before lifting them one at a time and feeling their increased weight. An act that made Spike’s already growing erection spring to its full length, the sheer amount of cleavage before him making his mouth water.

He extended his hand towards Sweetie Belle, his gaze never leaving Gabby’s bouncing breasts. “Here,” he muttered.

The unicorn chewed her lip before awkwardly reaching one arm across her chest, obscuring her nipples. Grabbing the bottle with the other hand, she brought the glass opening to her lips, and for a moment, wondered if she should continue. Then she made the mistake of glancing over at Ember and Gabby, the sight of whom made a strange, and slightly uncomfortable feeling settle over her.

A feeling the other two women seemed to share, as they two stared nakedly at each other’s semi exposed breasts. After a moment of consideration, Sweetie Belle tipped the bottle back and took another mouthful, handing it back to Spike before it could take effect. Just like before, it took only a few seconds before her tits surged forward, becoming the biggest out of the three girl’s though not by a very wide margin.

“Woah,” muttered Ember as she watched Sweetie Belle struggle to hold her now massive mammaries.

Gabby nodded. “Very whoa,” added the griffon.

“Well girls, there is only another mouthful left,” Spike remarked, shaking the bottle in emphasis and showing that was indeed the truth. “So whoever gets next is likely to win.”

“I knew I would win, give me that,” Ember declared, reaching for the bottle.

Only for Gabby to put herself between the dragon and her target. “Hey now, maybe we should talk about this. He did say that we were supposed to just sip it.”

“Y-yeah,” Sweetie Belle stuttered, the unicorn nearly falling over as she walked towards the other two. “We should split it evenly.”

“You’re just adding rules because you know you would lose otherwise,” Ember stated, eyes narrowing.

“I am not,” Gabby proclaimed, putting her hands on her hips, and letting her now enormous breasts flop against her chest.

Sweetie Belle, now blushing even harder than before, looked over to their host. “Spike, what do you think?”

The male opened his mouth to speak but the only thing that came out was a garbled mess of sound that was somewhat akin to an affirmation.

“Give me that,” Ember shouted, swiping the bottle out of Spike’s hand.

Both Gabby and Sweetie Belle reached for the potion, but Ember had already tipped it back, her cheeks bulging. Yet even as her mouth filled with the breast growth formula, Sweetie Belle could see that there was a hint of doubt in the other woman’s eye. It was momentary, but it was enough to give the unicorn an idea, one which she eagerly acted upon.

Leaning forward, Sweetie Belle swatted aside the glass container before pressing her lips against Ember’s own. The dragonic woman was so surprised that she didn't even realize what the other female was doing until it was too late. Now with a bit of potion stolen out of Ember’s mouth, Sweetie Belle stepped back and was about to swallow, but not before Gabby kissed her.

Repeating what Sweetie Belle had done to Ember, Gabby overwhelmed the girl by pressing their chests together. The feeling of having her still sensitive tits pressed against the soft breasts of another girl was more than enough to make Sweetie Belle drop her defences. Gabby then pulled back and repeated this action on Ember, who had only just barely shaken off the stupor of the first kiss.

Neither girl would let this go unanswered though, and together they tackled Gabby to the floor before the griffon could swallow her ill gotten prize. Tongues went back and forth, lips pressed against lips, and increasingly underhanded tactics were used. Until several minutes later the three women lay tangled in a heap, the potion having been long since consumed.

Spike meanwhile, just stood there, his jaw hanging open as he stared down at the three women. The male closed his eyes, and after pinching his arm, reopened them to find that all three topless girls were still writhing and making out on the floor. He dare not stop what was happening, and thus he just stood there, hard as a rock, waiting for them to finish.

Eventually it seemed to click that the potion was gone, and the three women stared at one another with wide eyes.

“So uh, are we going to talk about what just happened?” Ember muttered.

“That was really, really hot,” Gabby remarked.

“Plus we are huge,” Sweetie Belle finished.

Each one of them now sported tits that would make a porn star jealous and a bra salesman giddy. Though neither were quite sure what exact cup size they were anymore, Sweetie Belle had seen enough of her sister’s laundry to get a good idea that they were about a G cup. They were heavy too, though the unicorn couldn't help but think that her new boobs looked really good on her.

“You are all the same size,” Spike remarked.

“So it seems,” murmured Ember.

“Daww, does that mean we all lose?” Gabby asked, teary eyed.

Sweetie Belle giggled. “I think that means we all win, though I think I speak for everyone when I say that I also kind of want to go out with each of you.”

Ember nodded slowly. “I have never felt this way about another female, but something tells me you would make excellent partners.”

“Oh thank goodness,” muttered Gabby. “I thought I was the only one resisting the urge to make out with you two for a second there.”

“Wait, does that mean you don't want to go out with me?” Spike asked awkwardly, pulling a second bottle out of his shirt. “Because I know I said it was permanent but I did have an antidote made just in case things got out of hand or you had any regrets.”

The three women shared a knowing look with one another before leaping at the male, burying him beneath a mountain of boobs and giggling girls.

“If this is a dream, please Luna do not wake me up,” Spike muttered, a giddy smile crossing his face.

Gabby, Ember and Sweetie Belle all exchanged another look before breaking out into a renewed peel of laughter.

Author's Note

If you want to read the next updates for my biggest stories at the begining of the month rather at the end, or want to get a commission from me as well as access to patreon exclusive content, and the chance to submit story requests every month, head over to my patreon!

Join me over on patreon and get instant access to exclusive content and early looks at new stories, patreon only stories and other great stuff! Check it out!
Or just join the discord to ensure that you dont miss an update.
This update was made possible by the wonderful support of readers like you: Gear Change, John, Vindistic Shadow, Jordan, Megawott06, Fiamgoku, 浩民 簡, Nightwing, Jwarrior, Travis, Rhys, Hannibal, Dragon's Sheppard, Venerable RO, Corey, BeenMcsqueen, Mop Hop, Dale, Xvos1337, Nathan, Blade Tech, Tiwake, Free, Octavia&lowbar, GruB, Lich Lord Krosis, Todd, Canaray in the coal mine, Prysm, Mephia, Mike, Astor, Steven, Soundtea, Megatyrant, Ceepert, Menthol Qtip, Peter, Nfreak, Mikhalia, Doomgooey, Craig, Mirvra, Ivar, Starless, Apollyon6024, Facinus, M, Vigilant Watch, Pacsik, Kali, Makani, Diokyo.