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.