Get Big On 'em (or, 'Rumble's Tumbles in the Hay')

by darf

Rating: mature
Tags: Bon-Bon, Non-consensual, Rumble, Spitfire, Lyra, My Little Pony: Friendship is Magic, Rainbow Dash, Porn, Sex, Fetish
Length: 9816

Rumble gets a grow-up potion and goes on his way to meet the mares of Ponyville... WITH SEXY RESULTS.

After acquiring a new, extra-strong aging serum from Flim and Flam, Rumble is overjoyed to find he's just as big as he was, and twice as horny. Now it's time to tackle that list of eligible Ponyville mares he's been lusting over since the last time he got this big...

A sequel to Growing Up Fast.

A commission for Anonymous. We love that guy! :pinkiesmile:

Content Warning: Foalcon, dubcon, mind-control/pheremones, transformation/aging

Published 2020-03-24 02:00:02 UTC
Last updated 2020-03-24 02:00:02 UTC

Rhyming Is Annoying

Rumble woke up from his dream sweaty, disoriented, and with a painful hard-on between his legs. It took a moment for him to untangle from the blankets, the way they'd wound around him like an old pair of headphone cords let for too long in their own environment, and then another minute to disentangle from the fabric of the dream itself—soft pony bodies on every side of him, smiling and winking and worshiping and bending over to present themselves...

Rumble shook his head. The dreams had been going on for a while—usually the same, with minor details different. It always started with Rumble waking up in the morning and drinking a tall glass of milk that somepony had poured for him and left waiting in the fridge. He always drank the milk, wondered what it tasted like as he was tasting it, and then moved through the dark space between scenes suddenly into the next moment, harem on every side and body shaped and aged up from his normal, tiny frame. Flitter and Cloudchaser were there, Twilight and Pinkie, Princess Luna and Celestia... it seemed like every mare in Equestria was going to make at least one cameo before the dreams were over.

It had been two months, and they weren't over.

Of course, Rumble had hoarded the bottle, counting the drops at the bottom and praying preciously until the last time he'd polished the thing clean, and even then, only gotten a mild case of hiccups and noticed some mild swelling in his face and neck. There was no list of ingredients, or any label at all, and the smell was too mixed and salty-smelling to guess at what any of the components might be, to maybe mix up a homebrew concoction of his own.

No... when it came to magic like this, the particular, transformative, 'back-of-the-store-curtained-section' magic, the only pony to talk to was distinctly not a pony at all. A methodically rhyming black-and-white shamaness at the edge of the Everfree, as though her very location was part of the test to see whether or not you deserved to make a purchase. He'd gone once, when the light was out, sun up at midday, and still he'd felt nervous, hearing strange, unnervingly close growls from deep in the forest, and the perpetual sensation that he was being watched. Even making it to Zecora's didn't alleviate the tension much, until she'd given him a dose of rhymes and shoved the potion into his eager little hooves. Just like that, she'd helped him, a fairy godpony in the night. Maybe, if he was really that tiny and cute, he'd get lucky twice. And then he wouldn't have to be tiny or cute any more.

After he counted up the bits he'd been saving from his allowance for over a month, Rumble grabbed the empty potion bottle from underneath his bed and packed it in his saddlebag. Music would have been nice, to cover up the ambient crunches and baited howls of the forest... but sometimes, when there was somewhere you really needed to go, the only soundtrack you could get was the voice in the back of your head saying Just one more step. That's it. Then the next one. One more step. Good. Every time your hoof moved forward, you could give yourself a pat on the back, until you'd made it all the way to the destination.

With a last look back at his bedroom, his Wonderbolt bedding and sports-pennants hung on the wall... a poster of Daring Do, grinning as she stood in front of a large , MGI1 explosion.

Rumble shut the door quietly, wishing he was old enough to have his own lock. Maybe he'd just have to spend some more time out of his room for the next little while.

Once he'd gotten to Zecora's hut, the general sense of lurking predators in the faraway brush vanished (mostly), and even managed to keep his hoof steady, breathing calm as he knocked three times on the wooden door.

Waited thirty seconds. No response.

Knocked again. Knock, knock, knock.

Began to shuffle his hooves, looking around into the surrounding trees and wondering how far a timberwolf could run in the time it would take for Rumble to learn to fly. Then the door opened.

"Yes, one moment, please be patient, you've come to call while I was doing my baking..."

Zecora searched at eye-level for her new visitor, and, on finding nothing there, lowered her gaze to see if the local crawmice were playing tricks again. But there she found Rumble, a hopeful and desperate looking little grey colt, and suddenly remembered why she had gotten out of the habit of supplying unnamed, unlabeled, unexplained magickal potions to anypony who happened to come knocking with a set of sad eyes and equally sad story. A week ago she found Soarin' giving out hoots of his nasal-relief potion, claiming it made your head spin and funny colors pop up if you closed your eyes and held your breath after snorting some of the stuff up your nose. And while, yes, you could do that, Zecora had made the potion specifically to clear up Soarin's supposed nasal infection, and didn't feel like giving out the secrets of her favor buzz-up just because Soarin' had decided he wasn't really sick in the first place.

She studied Rumble with an appraising look, one eyebrow raised, the scent of whatever was in the oven wafting out the door and tickling Rumble's nose with the faint smell of cinnamon. Cinnamon and... garlic?

"Um," Rumble said, pawing at the ground with his hooves. "Hi."

"Ah, hello, my diminutive pegasus. What have you traveled this way to say to us?"

"Well, you uh, probably remember, I was here, a few months ago, about, uh, a potion to make me, uh, bigger—"

"Pause, my young thing. Don't have to finish. Do you mean that your colt-hood has been diminished?"

"No, uh, not as such, but I was hoping you could—"

"At your age, your youth should be free to finish, not spent on what might please the fillies." Zecora pursed her lips and looked down at Rumble, really down this time, the giant gap between a pony who was 'grown-up' and one who just wanted to be.

"Right, right, no, definitely, I agree... but I mean, your last potion, I mean, I don't know if you remember—"

Zecora narrowed her eyes even further, absolutely certain of every potion she distributed since her move to Ponyville. She had a ledger.

"You say you need another potion to increase your size, to where you might not believe your eyes?"

"Yes, that's right! In fact, if you could make it extra strong, I could just take a little more, and then use it to, uh, finally get on the roller coasters I'm too small for—"

Zecora shook her head slowly, eyes closed.

"The struggle of youth is a terrible subject," she said, her voicing lilting with aged wisdom. "But I no longer make potions for the general public."

"But you have to! When I came here last time, you said—"

"Please." Zecora held a hoof aloft, stopping Rumble mid-sentence, all silence, but for the burbling cauldron and soft hissing of the fire under the stone oven. "Take out thine hooves, and take out thy bottle." Zecora began to close the door. "This batch needs attention and I must not doddle."

"But—"

Without a 'slam', but with enough energy to communicate she wanted the contents of her doorstep very far away, Zecora shut the door, leaving Rumble on the front-steps, mouth half-open, empty bottle held in his hooves like a ticket to a closed-down theme park.

It took a few seconds to let go of the speech he'd prepared. Longer to settle on whether or not knocking again was worth it, and then finally to give up, hang his head, sigh, and turn to walk home the way he'd came.

But there was a noise still—that rumbling in the bushes. Was he going to get eaten just for wanting to come cop another wish-fulfillment potion? In his opinion, somepony shouldn't advertise their services if they're going to change their entire business model the next month...

Rumbling again. Closer. Whatever it was, it was definitely not ignoring Rumble anymore. It was following him, watching, waiting for the perfect moment to pounce...

"Greetings!" the yellow pony with a striped-hat said, popping out a bramble bush just to Rumble's right.

"Salutations!" the other pony said, popping up on Rumble's other side, cutting of any possibilty of escape that wasn't running full-on-screaming down the path and hoping his wings were eager to take their first emergency flight.

"Ahh!" Rumble said, and jumped, so startled he almost dropped his bottle, but managed to catch it clumsily before the thick glass hit the forest floor. Probably not to break, but better safe than sorry.

From their heads, two bodies emerged, suited in stripes to match their hats. 'Flim & Flam Curative Elixirs' was the sign on the wooden cart they wheeled out, with circus-style exclamations plastered all over—AMAZING! EXUBERANT! CURE ANY AILMENT IN ONLY A MOMENT'S TIME! FLIM AND FLAM'S CURATIVE ELIXIRS DEFY EXPLANATION, EXPOSITION, AND ALL FORMS OF REALITY!

"Good day, my young colt," Flim said, sidling up to Rumble and wrapping a foreleg around his back. "My brother and I were just on our daily constitutional through the ravishing Everfree estate, and we couldn't help—

"—but overhear your predicament," Flam finished, taking up Rumble's other side and squishing the colt inbetween himself and his brother. "And we're convinced that a double dose of Flim and Flam's EXPLICIT OVER-ENHANCEMENT syrup will set right all that ails you. You see, it's brewed from an ancient, Zebra formula handed down for generations—"

"—then reverse-engineered by us, under scrutinous testing and professional-quality observation," Flim added. "Nopony has been able to tell the difference in tests, before or after, and we're committed to the quality of our nebulous, wish-fulfilling product."

"Total satisfaction or your bits back—"

"—to all reasonable and legal definitions of 'satisfaction', hereby defined as—"

"—and this can be yours, for the low, low sum of ninety-nine bits plus regional taxes!"

"Ninety... nine bits?" Rumble patted his saddlebag, tallying the pony-bank savings he'd been storing from his paper route and allowance since the night at Flitter and Cloudchaser's. Money he earned as a little colt, that would be in someone else's hooves if he was big. And he wanted to be big.

"Does it last a long time?" Rumble asked, eyeing the translucent green liquid sloshing around in the stoppered bottle Flim and Flam had presented. He turned it in his hooves, studying the way the light seemed to refract through the glass and contents, glimmering like a light-house out in the middle of a bottle-green ocean.

"You may in fact notice prolonged and irreversible effects that are totally and one-hundred-percent part of the intended pharmacology," Flim said, turning a bottle around in his hooves to reveal the ingredient label. "And all our components are recorded under the full scrutiny of the Equestria Food and Substances association, which may or may not exist as of ten years ago."

"Perhaps our potential client would enjoy a sample?" Flam said, pouring what looked like a shot-glass full of the shimmery, crystaline liquid. "Just one sip and the vitals in your vigors and schnauser in your trousers will be raring to go." Flam offered the tiny glass to Rumble, who took it with his hoof shaking ever-so-slightly, spilling a tiny drop of the liquid onto the forest floor.

Flim dove for cover behind a bush as the drop hit the ground, but Flam stood steady, grinning and bracing himself as though a tornado were about to hit him in the face full force. The sound of a bird's mating call warbled through the woods, echoing off the maze of trees and foliage.

"Now, careful," Flam said, wiping a bead of sweat off his forehead. "That's quite volatile, so be sure to handle it carefully."

"Right." Rumble looked down at the glass in his hoof. It looked like he was about to drink a beer bottle melted down into a liquid.

But then there was Cloudchaser. Flitter. Rainbow Dash, Pinkie Pie, Rarity, Spitfire, Mayor Mare, maybe, even...

With a loud gulp, Rumble threw the shot back. It hit the back of his throat and burned like a shot of whiskey (which he had also never had), making him cough and spit a bit as the fiery liquid burned its way into his stomach. Already, he felt sweaty and light-headed.

But... down there... he was growing, already?

It started out normal-ish, just like he was turned on ambiently and receiving the 'get hard' signal from a random part of his brain, content to visit spontaneous and awkward erections for the duration of his puberty. But even when it had reached full hardness, the point where he usually woke up either aching and desperate or sticky and wondering what shame smelled like exactly, his cock kept growing. He liked to call it a 'cock' when it was big, when he held it in his hooves and imagined sliding it into a sweet filly pussy spread out in front of him.

Wings, too. They were swelling, growing on his back, which was going higher up, as his legs began to stretch out...

"Wow," Rumble said, his voice shifted and pitched two tones lower than it had been a moment ago. "This stuff works fast." His features were hardening, condensing into the chiseled marble they'd been that night at the babysitter's, thoughts in his head turning and searing until they boiled up under the heat of his desire, and the plan, which had mostly been a list of mares, began to trickle into the forefront of his brain. "You said it was ninety-nine bits?"

"Ninety-nine for the first purchase," Flim said, grabbing the bits that Rumble had pulled out of his saddlebag and tossing them into a hidden compartment. "Each additional purchase may incur increased handling fees, tariffs, levies, ease-of-use optimization..."

"Please direct any and all complaints to Flim & Flam Incorporated Customer Support Desk," Flam said, hastily packing up the cart and throwing anything that seemed to be of value back into the various holding chambers, including a few fallen leaves and one of the bits Rumble had dropped while he was counting his money. Flam shut the cart, slamming doors closed on the top and lowering blinds to cover up the advertising slogans and pictures on the side. "Take care to enjoy your Flim & Flam Miracle Elixir responsibly, and do not operate or supervise the operation of any heavy machinery while under the effects of the elixir."

"Side effects may included prolonged, painful erections, intrusive thoughts of lust or violence, and the sudden and overwhelming sense that somepony somewhere is laughing at you for something you don't even know about."

"Thank you, come again," Flim & Flam said together, grabbing their cart and wheeling it back into the Everfree. Their heads bobbed among the brambles, then ducked, then vanished, leaving only the soft turning of wheels crunching over leaves and twigs in the distance. Then just Rumble, holding his bottle, feeling big and awkward and finally uninterested in paying attention to the timberwolves.

There was a list, after all.

Author's Note

1: Magic Generated Image.

Two Broke Fillies

Rumble was in his room, going over his list, which had by now grown to three pages (double-sided, and counting), when he heard a knock at the door. Not expecting company, and knowing his mom didn't have her hoof-care product sales meeting until next week, Rumble went downstairs a little uncertain, but mostly just expecting somepony lost and looking for directions.

What he got was the pair of Lyra and Bonbon standing on his front step. Lyra was looking away and shuffling her hooves on the ground awkwardly, while Bonbon was staring at him with a staunch look on her face, like she was being held at horn-point to recite a speech.

Rumble wasn't sure what to say. Best to start with the usual. "Uh, hello. How can I—"

"Is there somepony who lives here who..." Bonbon looked back at Lyra, then
down at a small list on paper she was carrying in her hoof. "...'is totally
ripped and kind of looks like that guy from Superpone after his transformation sequence'?" Bonbon crinkled her nose and squinted harder at the piece of paper. "Oh. And... 'he's totally a pegasus and he looks like he has a... the size of...'... oh. Ahem. Anyways. Is he home?"

Lyra whispered behind Bonbon, "You got this!"

"Shut up!" Bonbon whispered back, and swatted at Lyra with her hoof, bonking her on the head.

"Oh." Rumble took a moment to assess the situation. He had to think fast. But there were two ponies waiting for somepony else here, and all he had to do was be that somepony else. Maybe the potion was what had gotten them here in the first place. "Yeah, I think you mean my brother. He's uh, upstairs. I'll go get him."

Rumble took off as fast as he could upstairs, leaving a smiling Bonbon and Lyra behind.

"See? I told you he lived here."

"What if he comes down and it's a different guy?"

"Shut up!"

When Rumble got to his room, he checked the bottle he'd gotten from Flim and Flam to see how much was left. Over two-thirds, and he'd been sampling it every other night just to check the effects and jerk off while thinking about what his next escapade might lead to. This was definitely an occasion that called for a dip into the stash—and Rumble took double, just like he'd planned before. It was time to see what a little extra juice could do.

Still totally unlike the potion from Zecora, this elixir began the transformation almost instantly, and before he could put the bottle down, Rumble felt surges of muscle and growth going through his body. His wings enlarged on his back, his cock grew and dangled between his legs, hanging so low when soft it almost touched the floor. He could feel himself swelling, his balls getting bigger, everything about him becoming fiercer, larger, and more virile. The smell of pony-sex wafted off in a mix of pheromones, and he smirked to himself in the mirror before heading back downstairs, leaving the bottle stoppered and safely on its place on his bedside table.

"Somepony was looking for me?" Rumble said as he walked down the stairs to the front entrance. Sure enough, Lyra lit up at the sight of him, and then tried to hide her enthusiasm behind Bonbon's back. Bonbon seemed still more scrutinizing.

"I think so. You fit the description. This is the awkward part." Bonbon steadied herself and took a deep breath, closing her eyes as she inhaled and opening them with the exhale. "Okay. No pressure. Would you—"

"Doyouwannacomebacktoourplaceandhavesomefun?" Lyra blurted out, unable to contain her enthusiasm a second longer.

Rumble took a second to pull the words apart, but once he got the shake of the sentence, he couldn't help but grin. "Fun?" he asked. "What kind of fun did you have in mind?"

"Oh brother," Bonbon whispered to herself. "What have I gotten into?"

"So here's the deal," Bonbon said, checking the bedroom door locks and ensuring the blinds were closed. "Today's not a safe day for me, so before you cum, you gotta at least pull out and shoot it on my butt or something." Bonbon shook her rump for good measure, waggling her luscious, cream-white cheeks in Rumble's direction, and being rewarded with an eager-sounding groan. "Lyra's on that new magic pill or whatever—"

"I got the one that tastes like donuts!" Lyra interjected, smirking broadly.

"—right. So, you can cum in her all you want. Although, between you and me, what she really likes is when you pull out right before you're about to shoot, and give her a big sticky load all over her face and mane—"

"Bon!" Lyra slapped Bonbon's hoof. Her cheeks were flushed red, and her mouth was narrowed. "Cut it out!"

"What? It's true."

Lyra shook her head, then turned to Rumble, giving him a big, filly-like grin. "Don't listen to her. I love getting a load inside my pussy. Mmhm-mmm. Fill me up, Daddy."

"Shut up! You just want him to finish in you cause that means you win."

Lyra did her best to look aghast, and put a hoof to her chest to complete the image. "What? I would never! This isn't about some silly competition, anyway. It's about three consenting, adult ponies..."

Rumble cleared his throat, masking the nervousness in the sheer baritone of his aged-up voice.

"...who are here to spend time together and make each other feel good." Lyra lied back on the bed and spread her legs, showing off her already damp pussy to Bonbon and Rumble. "Now, who wants to get their face wet first?"

Bonbon rolled her eyes. "First you complain about needing a dick, and then you wanna get your pussy eaten? You are completely ridiculous."

"I just wanted a little warm-up before we started."

"How about this," Rumble said. He stood up on the bed over Lyra, then effortlessly, almost like she wasn't there at all, picked up the green pony and held her over his head.

"Woah!" Lyra shouted.

Rumble spun her about once before plunking her at the end of the bed. He took his place where she had been lying, sitting himself down and putting a hoof against his half-hard cock, which even without a full erection, still put Bluey in the corner to shame and then some.

Lyra eyed his cock like the piece of meat she'd be hungry for. She stuck out her tongue and licked her lips, leaving a little bit of drool hanging from her chin.

"How about you warm up this—" Rumble gestured to his dick, which he held out with the tip towards Lyra's face. "—and get on, and while you're going to town, your girlfriend can lick you out." Rumble grinned as Bonbon's face twisted into the same. "That way you'll be nice and satisfied before she gets a turn."

"But I wanted to win—eep!" Lyra squealed as Rumble lifted her again, planting her down further up the bed, with her face directly in front of his cock. Despite herself, she found her tongue lolling out, unable to stare anywhere other than the tree-trunk think shaft stretching out in front of her face. "Ooh. That looks tasty." She gave the pole in question a lick, and giggled, apparently finding it to her liking. "Mmhm. Salty." She licked up Rumble's shaft again, starting at the base just above his balls (which she lapped at softly as well), before slowly tracing up the length of his dick, all the way to the head, which she finished with a little kiss, and another giggle.

"Are you gonna suck on that thing or do I have to do it?" Bonbon asked, tapping her hoof impatiently on the bedspread.

"Oh come on, I was just enjoying myself." Lyra lapped at Rumble's head again, and was rewarded with a twitch of his whole cock, which prompted another giggle. "Ooh! I think it likes me."

Seemingly satisfied with her introduction to her new, gargantuan friend, Lyra finally took Rumble's head into her mouth, albeit with some difficulty. She let her spit dribble out onto his head and shaft, and gave him a few gulps up and down, only about halfway down the length of his cock, but still more than enough to start him hardening in her mouth. Before Rumble knew it, his cock was a mess of spit and Lyra's mouth friction, warming him up and getting him as hard as he'd been in Spitfire and Dash a few nights ago. Maybe harder.

When Lyra was happy with her hoof-and-mouth-work, she popped off Rumble's cock with a slutty-sounding ahhhh, and wiped her hoof over her mouth, spreading the drips of drool across her chin and lips. "Yep," she said. "Tastes great. Heehee!"

"Just hurry and start getting pounded," Bonbon said, pushing Lyra's head downward and trying to move her body into place above Ace's now-throbbing member.

"Oh, fine! Stop rushing me." Lyra batted Bonbon's hooves away and propped herself up over Ace's body, staring down at his obscenely large tool and wondering if she'd bitten off more than she could chew. The descent was a struggle—Bluey had been amateur-size compared to this—but after a determined look, and a series of soft whimpers that made Rumble's cock twitch inside her, Lyra managed to make her way two-thirds down Rumble's cock. The remainder was just outside her cunt, filling her up all the way, spreading her lips wide.

"Holy buck," she said, shaking her head and sending a few drops of sweat flying. "I don't think I can take anymore. This thing is bucking huge."

"I thought you wanted a rutting, hun," Bonbon said, smirking. "Isn't that what you said?"

"A rutting?" Rumble asked, chiming in and getting another squeal from Lyra as his cock twitched once more. "Why didn't somepony say so?"

Lyra was just as light to lift a second time, only now she was lodged on his cock besides. It made the maneuvering a little more awkward, but Rumble felt a power he hadn't known in all his life, and it made rearranging everything easy, until Lyra was propped up on all fours and he was behind her, still not-quite buried inside. Rumble gestured down at Lyra's pussy, and Bonbon nodded, smiled, and lay down on the bed, sliding herself under Lyra's stomach and positioning her mouth just next to Lyra's dripping wet slit.

"Ready?" Rumble said, placing a hoof on either side of Lyra's svelte backside.

"Ready," Bonbon said, and nodded with a grin.

"Hey, wait a minute. I never agreed to—oh shit!"

Bonbon's tongue had gone into action the moment Rumble had slammed himself home, thrusting powerfully forward and burying the last few inches of his monster in Lyra's sopping pussy. A trickle of her juices ran down her leg and onto the bed the second she felt Rumble's cock-head slam inside her, and she let out a long, high-pitched moan that sounded like she was on the verge of a religious experience.

"Oh shit," Bonbon said, taking just a second away from her tonguing to clue Rumble in. "She's gonna cum soon!" Bonbon dove back to Lyra's pussy, licking circles around her clit and occasionally darting down to get a taste of Rumble's slick shaft as it slid in and out of Lyra's cunt.

"Ahhh, ahhh, ahhh!" Lyra lost words, lost language as her voice devolved into a series of desperate sounding screams, wrenching the sound and breath out of her body as she seized and began to shake and shiver, her pussy clenching tight on Rumble's cock. She rolled her head back and from side to side, tossing her mane wildly, mumbling incoherently as her pussy twitched the final time, settling her orgasm back on Bonbon's gently lapping tongue.

"See?" Bonbon said. "She's quick."

"Shut up—ahhh!" Lyra's sentence was cut off as Rumble started thrusting in her again, shaking the bed and Lyra besides. She reached back a hoof and Rumble took it, hanging on to her for balance and pulling him back against her each time he slammed his cock inside. "Unh, unh... holy Celestia this is good, this is just what I needed..." Lyra let out a throaty groan as Rumble fucked her, reaching back her other hoof to spread herself even wider for his girth, with Bonbon still licking diligently at her love-button. "Shit, I think you're gonna make me cum again." Lyra spread herself even further, began rocking herself back to get as much of Rumble inside her as she could with every thrust. "Shit, shit, shit, here it comes, I'm cumming—" Lyra tilt her head forward and bit down on the blankets, the last word blurring into a howl as her pussy quivered again, squeezing Rumble's cock like it was the last source of moisture in Equestria, aching for a hot coating of sticky semen.

But Rumble wasn't done yet. And Bonbon still had yet to get her turn.

"Do you want a spin?" Rumble asked, eyeing Bonbon and nodding to his cock, which was still halfway buried inside Lyra, throbbing maybe-even a little larger in anticipation of the load Rumble had yet to blow.

Bonbon extricated herself from below Lyra's legs, and nodded. "Uh-huh. She's not the only one who gets a turn." Bonbon's grin turned into a hungry leer as she turned and presented herself, peering up with her head turned and staring into Rumble's eyes. "Come on. Give it to me hard."

"With pleasure." Rumble pulled his cock out of Lyra's soaking-wet slit with a slurping noise, and was over to Bonbon before the first drip of filly-juice had left his cock-head. Lining it up, the same as the first, this time against a coat of cream-white and blue-pink swirls. Bonbon's lips parted to greet him, letting him slide the first few inches inside smoothly, Bonbon's gasps following as she took in the full size of the thing that was penetrating her.

"Oh my gosh," she said, steadying herself on the bed and looking back at Rumble to see what she was experiencing. "You weren't kidding, Lyra. That thing is huge."

"Isn't it?" Lyra asked. She sighed contentedly, sprawled out on the end of the bed, and began to play absentmindedly with her pussy, stroking it in circles with her hoof and moaning softly as she watched her partner get opened up by the biggest stallion-cock she'd ever seen. Even bigger than the ones in the catalogs.

"You want it hard too?" Rumble asked, shoving himself the last few inches into Bonbon's cunt. "You want me to rut you?"

"Buck yes," Bonbon said, raising her squishy butt up more and jiggling it in Rumble's face. "Rail me. Now."

Rumble, never one to disappoint a filly, did as he was asked. Bonbon's butt bounced against him like cushioning as he thrust in hard, making a smacking noise and then drawing his cock out again, teasing Bonbon with the head in little one-inch bursts.

"Come on," Bonbon hissed through her teeth, staring at Rumble's cock between her legs. "Don't tease me. Rut me. Please."

Apparently this was the correct response. Rumble grinned and put a hoof on either of Bonbon's luscious cheeks, squeezing them together, before he began pounding her, fast, hard, so much the pictures on the night-stand started to shake and jostle towards the floor.

Just as one of the pictures was about to slip off the table, Lyra caught it with a flash of green magic. Her horn glowed as she hovered the other pictures into a small pile next to the bed, resting safely on the carpet, as long as nopony aimed their load in that direction.

Speaking of which...

"You want me to cum on your ass?" Rumble asked, slamming Bonbon so hard her tiny moans were interrupted every other thrust as her body jostled against Rumble's thick, masculine frame. The set of cheeks in front of him was definitely a sight waiting to be painted in cream, to match the colour, to dribble slowly between her cheeks...

"No way," Bonbon managed, finding her breath and the space to speak inbetween thrusts. "When you're... gonna cum... unh!... you've gotta... holy buck... pull out and... unh... do it on Lyra's... face." Bonbon grinned over her back at Rumble before returning herself to face-down, ass-up position. "She... unh... loves it..."

"Oh, come on, you're spoiling me!" Lyra smiled and shuffled herself on the bed so she was closer to the action, now with a close-up view of the sight of Rumble's cock sliding in and out of her partner's warm, lubed-up slit. Lyra licked her lips as she watched the veiny shaft bury itself, then slide back out, the head just peeking as it parted Bonbon's lips.

"Oh buck, I'm gonna cum," Bonbon shouted, bracing her hooves on the bed. "I'm gonna cum so hard..."

Sure enough, Bonbon started clenching like she was possessed, suddenly wringing Rumble's cock for every drop of hot, sticky cum that had been stored up in his overgrown balls.

"Me... too..." Rumble managed, grunting furiously as he plowed Bonbon's ass at full speed. He waited as long as possible, letting Bonbon's cunt squeeze him, squeeze him tighter, listening to Lyra and Bonbon both moaning as he pulled his cock out, pointed it squarely at Lyra's face, and began to jerk it with both hooves. "Here it comes..."

Lyra opened her mouth wide and rubbed her pussy frantically as Rumble's load hit her face. The splash was so powerful, she staggered back a little, going from a clean, albeit sweaty face, to suddenly being coated in jizz, like she'd put on a face mask that was three times thicker than normal.

That was just the first blast. The second made a thick 'splash' sound as it sprayed against her chest, jerking up to hit her chin and inside her mouth at the last minute. Her mouth was overfull already, rivers running down her lips and staining her coat a bright white.

Rumble groaned and squeezed his cock with both hooves. Bonbon, on the tale end of her orgasm, spun herself around and started licking and squeezing Rumble's balls, coaxing the last few spurts of cum out of them, the final of which dribbled down the head of Rumble's cock and left a thin trail between it and the bedsheets.

All three ponies, when the final spurt of cum had been fired, collapsed onto the bed. Bonbon and Rumble sweaty, Lyra the same, but also looking like she'd gone bobbing for apples in a barrel of homogenized cream.

"That," Lyra said, "is what I meant by a 'rutting'." She sighed and flopped over on the bed, unconcerned with the dribbles of cum soaking into the blankets and spilling onto the nearby carpet.

Lying back on the bed, his hooves behind his head, Rumble smirked.

So many mares, and so little time... before he knew it, he'd be paying another visit to Flim and Flam. Hopefully somewhere more hospitable than the Everfree this time, mind...

I SPIT FIRE, when I pull, you gone get that rainBOW! #gunbars

When Rumble first started the list, it was more of a 'spot-them-when-you-can' type of deal, sort of like a dream team of Pokemon he could covet but never quite acquire. And there were so many eligible single mares in Ponyville, heck, even some who weren't so single but might have been down for a roll in the hay given the right pony's attention...

Before he got ready to go out, Rumble had taken some time to study the effects of the new potion. Rather than wandering in ass-first to a situation and hoping the stuff would work in some sort of way, he had tested it alone, in his bedroom, and concluded that whatever was in it, this batch was much, much stronger than Zecora's original recipe.

The first night, he'd taken just a little, and enlarged to his previous stature, the same-sized stallion that had taken Flitter and Cloudchaser and worked them all night until they couldn't stand up properly anymore. His cock had gone from dinky to deadly, and he couldn't help but admire the size of it between his hooves, standing up like some tower he had erected out of plastic blocks.

The second night, he'd tried a double dose, and at that point, began to wonder what he'd gotten himself into.

The size was ridiculous. His cock looked like a new foreleg, sticking out obscenely and dangling with glistening head and throbbing veins and begging for attention. He jerked off three times, completely soaking the small t-shirt he kept below his bed to clean himself up, and going to bed with his erection still painfully standing straight-up and tenting his blanket. Most of the size had worn off the next morning, but the erection had persisted, and he'd jerked off two more times for good measure.

One-and-a-half would probably do the trick now. He checked and double-checked the dosage, measuring it out into a measuring cup he'd snatched from his mother's kitchen supplies. One-and-a-half, and he could finally start, at the top or bottom or anywhere else in his list that called out. Scanning the directory of potential pony-puss, two names caught Rumble's eye near the top of the list. The two Wonderbolts he'd watched for years, wondering if when he grew up, his wings would be fast enough to fly among their ranks. If they'd meet him in the locker room, gawking over his muscles and flight-speed and cooing over his strong, virile wings, rubbing themselves against him on the way to the team shower...

Rumble shook his head. He gulped, clearing his mouth for the strange, earth-and-medicine taste of the new elixir. It tingled as it ran down his throat, and made his stomach grumble slightly. But the effects were almost immediate. Legs lengthening, chest-muscles hardening, cock elongating like a snake between his legs...

Tonight, Rumble was going to his first bar. Time to see if the two ponies he was looking for would be there.

"I'm telling you," Rainbow Dash said, taking another sip of her drink. "There are no eligible colts left in Ponyville. All the good ones are taken up."

Spitfire smiled and cradled her own drink between her hooves, a bright-orange whiskey that matched her mane. "Have you considered that maybe you just have an aptitude for picking the ineligible ones?"

"Whatever!" Rainbow Dash finished her drink and slammed the glass back onto its coaster, the ice clinking loudly. "I don't see you coming home with anyone on the regular either. I think you're just as single and desperate as I am."

"Single, maybe," Spitfire replied, smirking. "But desperate? That's all you, Dashie."

At the front of the bar, a grey pegasus taller and broader than anypony else inside, and, most importantly, the bouncer as well, was making his way inside, eyeing the occupants and taking in the sense of the room.

Rainbow Dash, halfway to raising her hoof to order another drink, paused, and sniffed the air. She turned her head slightly to the side and sniffed again.

"Do you smell that?" she said, turning to Spitfire. "It smells like... something."

"Like something what?" Spitfire asked, turning her own head and sniffing at the air.

"I dunno. Like something... good." Rainbow Dash sniffed a third time, and this time, straightened her head immediately, her cheeks growing flush, eyes wide. "Oh." She tucked her legs together and scooched her bar-stool closer to the bar. "Heh. That's funny. I kinda thought I smelled..." She blushed brighter, and brought a hoof to her mouth, looking uncharacteristically embarrassed. "You know. Uh..."

Spitfire tilted her head further. "Smelled what?"

"Nevermind," Dash said. She shook her head and tried her best to look interested in her empty glass, tilting the ice cubes around and bumping them into each other. "But it, uh..." Rainbow Dash jerked her head up again, her nose twitching, and then spun her head towards the entrance of the bar. "Huh." She sniffed deeply, inhaling with her eyes closed, and let out a low, soft sigh. "I think it's coming from... him."

"A new cologne or something?" Spitfire asked. She tried to place the scent, somewhere mixed between a rich bouquet of flowers and the sweat on the back of your neck after you'd just come hard enough to knock stars into your eyes. While she didn't blush as easily, Spitfire too felt a tingle between her legs, so definite and distinct it felt like somepony had walked up behind her and pressed himself into her rump without so much as a warning, hard, and she liked it, despite normally playing hard-to-get like it was the Equestrian national sport. "Jeez," she said, taking sudden interest in her whiskey and downing half the glass in a single go. "That's, uh... yeah. Nice. Nice and... strong."

From across the bar, Rumble had eyed his two targets. His approach had to be as swift and pointed as theirs across the sky, and even though he had a clear picture of the aftermath in his mind, the process to getting there was uncertain at best. Every step was new and shaky inside. But outside, his hooves moved certainly, and nopony could tell him from a confident stud walking up to the counter and getting ready to order. Either a drink, or one of the two mares already eyeing him like a new menu item. Rumble heard his own voice in his head, lower than he was used to, patting himself on the back and ruffling his new, fully-formed, stallion-sized wings.

You got this.

He nodded to himself. Plus, he could get a drink out of the whole thing too. Growing up had all sorts of little bonuses.

"Hey there," he said, nodding to Spitfire and Dash, who had turned the opposite direction and preoccupied themselves with their drinks as soon as they noticed Rumble looking back at them. The two of them turned on their stools, both cradling an almost-empty glass full up only with ice. Rainbow Dash traced her hoof around the mouth of her glass, staring timidly at the floor like she was a filly in school who had forgotten to bring her homework. Or like somepony on the playground she had a crush on had finally decided to notice her.

Spitfire and Dash shared a look. Like, 'Is he talking to us?'

Yes, Rumble said, finding a smile coming to his face, bold and confident, as though he'd practiced it in the mirror. Or maybe as though he didn't need to. I'm talking to you.

"Oh. Uh... hey!" Rainbow Dash waved her hoof lamely in the air, suddenly forgetting not only her position on the Wonderbolts, but also how to conduct herself in front of the opposite gender in any capacity. Her limbs felt weird and heavy, and she wasn't sure what to do with any part of her body. It seemed like if she turned in the wrong direction, she'd be consciously presenting something, and she wasn't sure whether she wanted to or not. Or to just turn around, lift her tail, spread her legs and—

"Hey there," Spitfire said, somehow finding a modicum more composure than Rainbow Dash, who seemed to be regressing to 'filly-in-heat' status rapidly. "Haven't seen you here before."

"I'm new in town," Rumble said, forcing his voice low, finding it came out an almost sub-audible hyper-baritone, then coughing, patting his chest, and remembering the potion would already do most of the work. He just had to steer the ship, so to speak. Right into Rainbow Dash's—

"Well, welcome to Ponyville," Spitfire said. She patted the stool next to her and spun it around a few times for good measure. "Why don't you sit down? I'm Spitfire, and this is—"

"Rainbow Dash!" Dash leapt over Spitfire and stretched herself across Spitfire's lap to shake Rumble's hoof with both of hers. Her eyes were beaming, practically full of little pink cartoon hearts. "It's nice to meet you. Really nice." She slowed her hoofshake and took a moment to feel Rumble's hoof inbetween hers, how strong it felt, connected to that big, luscious, hunky body... Oh. Dash crossed her legs again, extra tight, and got a jolt of friction for her troubles, which made her squeal and jump back to her seat. "I mean... why don't you have a drink?" Her voice went high and squeaky, cracking like she was a teenager. She seemed to notice the squeak on delay, then gasped quietly to herself, then cleared her throat loudly and repetitively until she was convinced she could at least sound like she was old enough to be there. "I mean.... uh," she cleared her throat again, patting at her chest with her hoof. "It's on us. Me, I mean. I got it. Heh."

"Dash is a little more forward," Spitfire said, giggling to herself. "Though, I have to admit, you are a treat for the eyes."

"Likewise," Rumble said, taking the seat Spitfire had patted for him. "And you don't have to buy me a drink."

"I insist!" Dash said, smiling and putting her foreleg up onto the bar.

"Well... I have wanted to try one of the local ciders for a while, since I've heard so much about them." Yes. Good line. And free cider.

Spitfire giggled. "I'm pretty sure you'll love it. Bartender, one—"

"We've got lots of cider back at our place!" Dash interrupted, again reaching her foreleg out over Spitfire's chest, this time placing it on Rumble's shoulder and staring him in the eyes. "Why don't you come back to our place and try some?"

Spitfire gave Dash a Look™. 'Are you seriously just gonna ask this stallion over after we've known him for less than five minutes?'

Dash Look™ed back. 'Are you saying you don't want a piece of this action right now?'

Spitfire tilted her head. 'Fair point.'

Dash nodded. 'Exactly.'

'But I get first dibs.'

'What? Hold on a minute—'

"Yeah! You should definitely come back to our place," Spitfire said, draping herself over Rumble and nuzzling his neck with her nose. "You can try some cider, maybe check out the hot tub..."

"Hot tub?" Rumble asked, tilting his head up a little.

Spitfire got up from her stool. Rainbow Dash did the same behind her, and left a tip on the bar next to her glass. A napkin, autographed, with her name, and the word 'Wonderbolts' below it.

"Let's just take it one step at a time, shall we?" Spitfire said.

Before the trio had gotten in the door of the apartment, Rainbow Dash was on Rumble and exploring his mouth with her tongue faster than you could say 'Sonic Rainboom'. Spitfire more or less opened the door for them, and hung up her keys on the wall as Dash and Rumble spun past her towards the living room, eventually hitting the couch and sprawling out on it, Dash on the bottom, Rumble atop her, a tangle of limbs and grinding and mouths mashing together. Rainbow Dash was already moaning like her estrus season had hit early.

"Couldn't you even wait until we'd gotten in the door?" Spitfire asked, taking off her sunglasses and putting them on the table below her keys. Still... she'd noticed a definite increase in activity between her legs on the way home as well, even just standing next to the new pegasus, and it was only a small amount of extra willpower that was currently keeping her from jumping onto the couch and joining the make-out session wherever there was room. In fact...

Dash stopped suddenly, mid-kiss, as Spitfire tapped her softly on the shoulder. "Huh?" she asked, perhaps not even remembering what room of the apartment she was in, or maybe even which day of the week it was. Her eyes were glazed, half-open, and her tongue hung out, drooling saliva down her chin.

"Are you just doing this 'cuz I called dibs?"

Dash shook her head. "Unh-uh. Couldn't keep my hooves off him."

"Then slide over and make room for me. That's a big couch you know."

Sighing, Rainbow Dash sat up and scooted over, giving Spitfire a spot on the couch behind Rumble. "Fine, but you're not taking all the attention this time."

"When did I ever do that?" Spitfire asked. She draped her hooves over Rumble's chest and started drawing little circles in his fur above his nipples.

"Whatever. You can ride, I'll take his mouth for another spin. If that tongue is as strong as the rest of him looks..."

Rumble raised and eyebrow and winked. "Why don't you come find out?"

A second invitation was unnecessary. Rainbow Dash kissed Rumble again, slathering her tongue over his, before pulling away and moving herself up on the couch to prop her pussy right over Rumble's eager face.

He took a moment to study the prize in front of him. Blue on the outside, just like her coat. Little glimmers of pink on the inside, glistening with wetness. And at the top...

"Like my piercing?" Dash asked, pointing at it with one of her hooves. A rainbow-colored stud, right through her hood, above her clit. "Pretty cool, huh?"

Rumble responded by licking up Dash's slit, his tongue even benefiting from the increase of the potion, able to lap up a good taste of the pegasus's1 juices and make her shiver over, her legs shaking as though about to give out.

"Damn it!" Dash said. "I want more of that, please."

"No problem." Rumble dove in with vigor, taking his tongue to work and drinking in the taste and smell of Dash's arousal, the way she rocked her hips forward and pressed herself into him, like she was too desperate to keep still for even a moment. As soon as he began licking her in earnest, searching with his tongue to pry and taste inside, rubbing over her lips and teasing in circles around her clit and piercing, bumping the latter over the former, making Dash groan and push her hips forward even harder. She put her hooves back behind her head and rocked forward against Rumble's mouth, the wet sounds of his tongue lapping away at her wetness filling the room.

"Yeah yeah, Rainbow Dash is as wet as ever... you know she comes in ten seconds flat, right?"

"Do not!" Dash yelled, putting a hoof in Rumble's mane and running it through sensuously, her hips still moving on autopilot.

"Whatever." Spitfire studied Rumble's cock, pointing straight up since he'd walked in through the door, and probably even a little before then, with the way Dash had been rubbing up against him and flicking her tail over her ass. "You ready for the ride of your life?"

"If you think you've got what it takes," Rumble countered, taking just a moment away from Dash's dripping slit before diving in again full force, once again filling the room with the sound of Dash's repeated moans and surprisingly gentle cooing noises.

"You're talking to the head of the Wonderbolts, hun." Spitfire propped herself up over Rumble's cock, studying the bulging veins along the side, guessing at the thickness of the head as she pressed it against her slit. She slid the tip along her lips a few times for good measure, lubing it up with her wetness, making sure everything would slide nice and smooth once she started riding Rumble like a mechanical bull. Once she was finally satisfied with the slippery noises Rumble's cockhead made as she dragged it along her slit, Spitfire poised the tip at the entrance to her pussy and slid down, bracing herself, but evidently not enough, for the new guest she was about to entertain.

"Holy shit," Spitfire said, gritting her teeth and letting out a low groan. "You've gotta be kidding me. This is ridiculous." She stared down at the joinder between her sex and Rumble's, looking for confirmation that flagpole she was trying to sit on was in fact having a harder time sliding into her pussy than a random pony into her DMs. What was that... maybe half an inch? And already she felt like she was more full up than she'd ever been before. What were they feeding the stallions these days?

With a grunt, Spitfire shoved herself down another half-inch, and let out a long, low groan, closing her eyes and tilting her head back, her mane, flecked with sweat, sparkling under the single living room light. "Fuck. There's no way. Hold on..." Spitfire steeled herself, bit her lower lip, and began to sink down slowly on Rumble's cock, pushing herself every second to take more of the gigantic shaft. Stretching herself out, breathing hard, closing her eyes until she was just about all the way down...

"There!" Spitfire shouted, gasping as she felt the head of Rumble's cock twitch inside her. "I... I did it..."

"You got started," Rumble said, putting a hoof on Spitfire's ass and smirking at her. "Think you can actually ride that thing?"

"Only one way to find out," Spitfire said, and winked. She gritted her teeth again as she began to raise her butt up, panting and moaning to herself as she pulled up half-way, then finally poised just the tip of Rumble's cock inbetween her lips, swaying her hips from side to side and slicking him up with more of her juices. "Oh yeah, this is gonna be a good one."

Even as ready as she was, overconfidence was a tough apple to swallow. Spitfire let out a loud gasp as she slammed down on Rumble's cock. The whole thing filled her to the point of wordlessness, suddenly every profane syllable she knew exiting out her ear, because there was only room for one thing in her head, and that was to think about how full she felt with Rumble's cock stuffed inside her. She could feel it poking up into her stomach, stuffing every inch of her pussy so full she could barely move. And yet, she managed, inch-by-quivering-inch, raising herself up with both her hooves on Rumble's chest for balance, poising herself at the tip of his cock, and then slamming down again, her butt bouncing and jiggling slightly for good measure.

"Damn," Spitfire said, starting to find a slow rhythm with each slam of her ass. "You're not gonna believe this, Dash, you've never felt a cock so big." Spitfire ran a hoof over her own chest, rubbing her coat blindly, no matter, where, just another touch felt so good when she was stuffed up like this. "You're gonna love it."

"I can't hear you, I'm floating on a cloud somewhere," Dash said. Her eyes were closed, hooves still behind her head, rocking herself back and forth on Rumble's mouth as he lapped hungrily at her dripping pussy. "Ohhhmygosh, your tongue feels so good, I haven't had somepony eat me in weeks. You're gonna make me come in no time..."

"Mhmm!" Rumble mumbled his approval with his tongue buried in Dash's pussy, pulled it out and began to lap in circles at her clit, bumping up against her piercing every now and then and tasting the cool metal on his tongue.

"Buck! I'm close, really close, you're gonna make me cum so hard..." Dash took both hooves off the back of her head and put them in Rumble's mane, pulling him gently closer as she rocked her slit tight against his tongue. Each time his tongue would press down over her clit, Dash let out a little squeal, higher in pitch, ascending the mountain to her orgasm.

Spitfire, albeit a bit more quietly, seemed to be going through a similar struggle. Her teeth were gritted, her eyebrows furrowed, and a grunt each thrust, loudly, as though she were fending off her orgasm for as long as possible until she'd gotten her fill of Rumble's jumbo-dick.

"Told you... Dash was... fast..." Spitfire mumbled, grinning with clenched teeth as she bounced herself more rapidly on Rumble's cock. "Bet mine... sounds better... though..."

"Oh buck! I'm cumming..." Dash said. She closed her eyes tight and held on fast to Rumble's mane, shoving his mouth as hard as she could into her clit and rocking her hips frantically back and forth. Her pussy clenched as her orgasm began to hit, and before she could let go of Rumble's mane she was screaming wordlessly, noise reverberating off every wall of the apartment and probably keeping up some of the neighbours as well. What's more, after a few seconds, Dash brought a hoof down to her clit and began to rub rapidly in circles, her hoof blurring as she rocked it over her love-button. "Buck!" she said again, this time spraying Rumble's mouth and face with a hot spray of filly-juice, her hips locked in place as her whole body seized with pleasure. A few more drips and her legs gave out, sending her tumbling down onto Rumble's chest and laying awkwardly with her face next to his. Hers covered in sweat, his in filly-cum.

Despite her admonitions about speed, Spitfire followed close behind. Her orgasm was wordless, just a long, low groan, let out of her like some primal yell as her pussy clenched so tight on Rumble's cock it was like she was trying to squeeze the cum out of him.

And Rumble, despite his new physique, found himself at last overwhelmed by the sensation of a fantasy fulfilled. Of his brand-new, hulking, virile cock, slammed down on over and over by Spitfire's bright orange butt. He was at his limit too.

Rumble groaned low and deep as he bucked his hips upwards, his cock beginning to twitch as his balls sent the first shot out of his tip. The resulting load was so volumous it began to drip out of Spitfire's cunt immediately, splashing over her lips, hind-legs, and down onto the couch underneath.

Each spurt, Rumble let out another groan, as though he was guiding the shots into place. Spitfire's cunt filled up rapidly, oozing, then practically gushing the gooey white liquid. When she finally pulled herself up off Rumble's cock, her pussy-lips twitched, then let out a sploosh of cum, dribbling it obscenely downward like a pony who had cupped the water against their body in the shower and then dropped it all at once.

"Buck," Spitfire said finally, eyeing the aftermath of her extra-size creampie. "Maybe we shoulda used protection..."

"Just hit Twilight up tomorrow for a morning after spell," Rainbow Dash quipped, yawning and eyeing the load of splooge as it dripped from Spitfire's pussy onto the couch like a a sex-themed waterfall. "Only takes a few minutes, and gives you a bit of a stomach-ache after."

Spitfire nodded. "Fair enough. Pretty worth it, to be completely honest."

Dash nodded back, and licked her lips, staring down at Rumble's still-hard, now-cum-covered cock. "Mhm-hmm. You said it."

Without warning, Dash moved herself down the couch, pushing Spitfire out of the way and hovering herself above Rumble's engorged shaft.

"Hey!" Spitfire said, glaring in Dash's direction.

"Whatever. You already got a turn. Now it's time for Dashie to take this thing for a spin..."

All of this, from one-and-a-half?

Maybe next time, a double dose was in order...

Author's Note

1: —'s's's's's's's's's's.