It was approaching noon now, and the long morning of walking through the exhibition hall was catching up with Diamond - the ache was starting to rise into her shins now.

Thankfully, the ache in her legs was all she could feel. There was no ache between her legs. The cold shower she’d advised her boss to use had helped immensely with that.

As she’d hoped, the subject of that morning’s embarrassment had not come up at all, and the two had quickly fallen into their normal routine of CEO and Chief Legal Counsel, scouting the hall for great ideas and greater minds.

Diamond hooked her arm around her boss’s shoulders and steered him away from an exhibit on Nitrogen Tetroxide based fuels for the third time, in much the manner that a parent might escort her foal away from the toy aisle at the supermarket.

“Aww, but they have such good thermal properties, Diamond!” Jet whined looking back over his shoulder at the booth, which was hosted by one of the major chemical manufacturers of Equestria, as they tried to peddle the new fuel they’d invented.

“And such horrifying toxic effects.” Diamond sighed. “We’re based out of Las Pegasus, boss… the number of environmental regulations there could choke a hungry yak… there’s no way we’re ever going to get permission to use anything other than hydrogen and oxygen for our designs.”

“Then I’ll just open a factory here in Flhorseida!” Jet pouted, crossing his arms.

“That would only cost more than twice the entire value of the company…. So… no.”

Jet groaned, throwing his head back and loosening his tie. “Remind me why I bring you along to these conventions again?”

“To keep you grounded so that you don’t act like a kid in a candy-store and invest half the company’s assets in some new untested tech, dooming us to financial ruin?”

“...good point.” Jet sighed. “Still though - imagine not needing cryogenic fuel systems! The fact that it melts flesh is just a minor problem… I’m sure we c-”

“Here boss, why don’t we take a look at this one, we haven’t seen this booth yet…” Diamond steered him toward the smaller, out of the way booth, which seemed to be stocked by three young students. The whole affair seemed entirely bush-league, the stand being nothing more than a folding table and lawn chairs - a few poster boards with random indecipherable data printouts strewn across them, and two tanks hooked up to two breathing masks. But this wasn’t uncommon - many of the exhibits were put together by enterprising young engineers from the local schools… and many of the nerdier sorts had little skill when it came to putting together a top-notch presentation… though they could have the next billion-bit idea.

In any case, she needed something to distract her boss for the moment.

“So - tell me about your idea!” Diamond began, asking the young earth-pony mare manning the booth. Next to her was a suit and tie wearing stallion, who looked very eager and awestruck at their approach. Slinking out the back was another mare, a pegasus with a bowl cut and large, nerd-style thick-rimmed glasses.

“Guys, I gotta take a leak, I’ll be back in five.”

The stallion turned and his jaw dropped open. “Are you kidding Iggy? Don’t you know who these two are?” The stallion hissed through gritted teeth and motioned over his shoulder toward Diamond and Jet. “This is the owner of EquestriAero! This could be our big break!”

The pegasus mare shrugged and adjusted her glasses. “I really gotta go.”

“Then hurry up!”

The stallion whirled back on Diamond as the nerdy one made her way toward the restrooms. “Hello there! Mr. Stream, Ms. Gavel! Let me first say, I am a huge admirer of your company… and your story, Mr. Stream, its something I look to achieve myself someday.”

Diamond blinked. The kid seemed slicker than an Appleloosan snake-oil sales pony. The fact that he had the appearance and name of the bigshots at the convention was just further evidence that he was probably three times as impressive as the actual science behind him.

Jet grinned next to her, nodding at the kid. He always was a sucker for compliments.

“What’s your pitch, kid?” Diamond quickly interjected, trying to remind her boss that these grads were here to sell.

“Oh! Of course!” The stallion adjusted his tie and turned toward her. “First of all, please let me introduce myself and my colleagues. My name is Dow, this here is our chemist Dew Pont, and the mare who had to excuse herself is our pony physiologist, Iggy Farben.”

“And what do you do, Dow,” Diamond asked.

“Oh - investor relations, naturally!” He smiled.

“Have a lot of investors, do you?”

“We will!” Dow motioned at the tanks and respirators in front of him. “We’re pioneering the use of oxygen substitutes for ponies that can increase their reflexes, skills, and tolerances to unprecedented levels, allowing for engineers to expand the envelope of designs of spacecraft that are pony-rated.”

Jet tilted his head, peering forward and trying to read some of the data on the graphs posted across the boards, all of which were just slightly out of sight. “Really?”

“Oh yes!” Dow motioned, quickly stepping in front of Jet, cutting off his ability to see the extra data. “You see, we turned to complex spectrographic analysis of ancient Zebrican chemical gases to distill the various compounds and aromatics that create such amazing and mysterious health benefits to create a perfect blend for astronauts.”

“Perfect blends?” Diamond asked, checking the gas masks.

“Yes!” Dow chirped, flipping through various charts, each time making sure to move past the page so that all Diamond could see were an assortment of graphs with positive trends and green percentages, and little scientific facts at all. “Imagine if you could provide your astronauts with the g-tolerances of the mightiest earth-ponies… the reflexes of the most-highly trained pegasi… and the mental acuity of our most ancient and skilled archmages!”

Jet Stream scratched his chin, “performance-enhancing drugs… for astronauts? I have never heard of that idea before.”

“Allow me to demonstrate!” Dow snatched up one of the masks and clapped it onto Dew Pont’s muzzle, tightening the strap as he did so.

“Mmmf hey!” Dew Pont complained.

“Quiet Dewy,” Dow growled, “sorry sir, this is our first demonstration… but we’ve tested this out on ourselves many times to date.” Dow quickly strapped on his own mask and twisted the valve wide open. The hiss of air could be heard flowing through the thin plastic tubing.

Diamond watched, puffs of condensation appearing as the two students took in breaths of the magical gas. She noticed their eyes becoming brighter, wider, more alert… a sheen seemed to run through their coats and manes… definitely, she could sense energy about them… before Dow cranked off the flow.

“Now sir, if you would please scramble this Rubik’s cube for me.” Dow tossed Jet the cube of multiple colors.

Diamond was somewhat surprised to see the toy on an earth-pony. They were not exactly conducive to the race’s lack of feathers or magic - using hooves on the small objects was practically impossible. Even Jet had some difficultly scrambling the small cube with his feathers.

“Here kid, though I don’t know how you’ll-”

Almost as soon as Jet had tossed the cube back to the stallion, an incredible sight took place before their eyes. The deftest of touches with his hooves, his arms a flying blur, each sharp edge of his hoof being applied precisely and at the perfect moment to twist the next row or column. And his precision was perfect. Not a wasted turn or shift - each motion bringing the cube back into its perfect alignment in the smallest amount of moves possible.

“…done.”

“How did you-” Jet began.

“There’s more - please, Ms. Gavel… ask Dew to factorize any number of your choosing. Any number of digits.”

DIamond blinked, trying to think up a big number. Anything over 4 digits would be incredibly hard for a pony to do from their head alone… “15,001”

“Interesting… that number has only two prime factors: 7 and 2,143...)” Dew Pont replied immediately.

Diamond blinked, trying to run the arithmetic in her head, but Dow had already pulled out a calculator and punched the numbers in front of her, confirming Dew’s rapid mental arithmetic.

“I was able to predict that you’d want to confirm that answer, Ms. Gavel… just like I can already predict a growing skepticism… you’re looking to see if 15,001 was a forced suggestion,, or if the Rubik’s cube might be some insane talent that I happen to have… you’re looking for a trick.”

Diamond blinked, taking a step back, the eerieness of the stallion’s rapid prediction of her though process startling her.

“And my predictive abilities have already leapt ahead of you - the only thing that will satisfy you and your boss as to the real nature of this performance-enhancing gas is to try it yourselves.”

Dew Pont, suddenly glanced nervously at her colleague, a questioning eyebrow-raising on her face. “Dow… don’t you think we should wait for Iggy to administer this gas on any new ponies? They haven’t been screened or-”

“Quiet Dew. They’re right on the edge - they just need a little whiff and I’m sure they’ll see the genius in investing in our product… unless…” Dow’s eyes glanced coyly at Jet Stream, “they’re willing to forgo their sample and let us demo our gas to SpaceZed instead.”

The mere mention of EquestriAero’s arch-rival was enough to send Jet’s hackles up/

“Gimme that thing, SpaceZed wouldn’t know a good idea if it bit them in the plot.”

“Great! Step right up!”

Diamond sighed, shaking her head as she reached for one of the masks - ss soon as SpaceZed was mentioned she knew this was a done deal… they would at least have to try it. She slipped the mask on, tightening the seal against her muzzle as Jet did the same.

“Ready?

Jet nodded, and Diamond shrugged. Dow cranked the valve, twisting open the flow of gas with an audible hiss.

Diamond could smell the strange sharpness of chemistry in the otherwise clear and odorless gas - like the smell of a recently drycleaned suit… or the inside of a new car… but otherwise it just seemed like air? Maybe this kid really was all bluster?

She definitely didn’t feel any different. She looked at Jet, trying to see if there was anything she noticed there - by now the eyes and fur of the other two had undergone their rapid change.

There was a sudden blur of feathers and fur, as the pegasus who had left for the restroom flew in at top speed to knock away Dow and slam the valve shut.

“Take those off! Right NOW!” Iggy shouted, her eyes wide with fright under her glasses as she scrambled to pull the masks off of Diamond and Jet’s faces.

Diamond tore the mask off with alarm. “What is i-”

“Quiet! Deep breaths, both of you, in out… as much oxygen into your lungs as you can,!”

Diamond did as instructed filling and emptying her lungs as much as she could.

“Dow, you featherbrain!” Iggy’s wings were fully unfurled as she ripped into her teammate. “I told you not to use the gas on anypony - you said that you were only bringing it out as a prop!”

“WHat’s the big deal? Dewy and I have used it a hundred times now… we just used this very batch like ten seconds ago… why are you so-”

“Because this formula only works for earth-ponies!” Iggy shouted, her wings way outstretched with fear. “The earth-pony resiliency screens out hundreds of the complex minor agents that would still have major effects on pegasus and unicorn bodies!”

“Do we… do we need to go to the hospital?” Diamond interjected, a tension rising in her chest… how could she have been so stupid as to breathe in some crazy gas?

“No. And keep breathing…” Iggy commanded, checking the valves and doing some numbers on her feathers… “A ten PSI tank open at about 80% divided over two masks with an initial concentration of 15 mol would mean…”

“Approximately 15mg per liter effective delivery…” Dewy happily chirped, her eyes still bright with the intelligence enhancing effects of the drug.

“At least the drugs good for something right now…” Iggy murmured to herself, yanking the tubes out of the tank with a glare at a sheepish looking Dow and tossing them to the ground where they could no longer be used.

“Seriously, can you tell me what’s going on? Do I need to call an ambulance?” Diamond pounded her hoof down on the table, frustrated that these stupid kids had just endangered them and were leaving her out of the loop.

“No, no… at those levels you’ll be just fine…”

“How the hay would you know?” Diamond snarled.

“I tried the compound myself, OK? I know exactly what effects they would have on non-earth pony physiology, it’s nothing health-threatening…”

“Well…?” Diamond asked, opening a hoof in question.

“Well?” Iggy tilted her bespectacled head in confusion.

“Well, just what the hell does the drug do, dammit?”

“Oh! Oh.” Iggy suddenly blushed, looking down at the floor, her cheeks going bright red. “W-w-well… it’s kind of embarrassing actually…”

“What is it!?”

“Wait… are you two… together?”

Diamond blinked, her mind racing as she tried to parse the question. Of course they were together! Hadn’t the stupid filly seen the two of them walk right up to the booth!? Was she trying to find some way to split them up in case of a liability issue? Just what was her aim!?

“Of course we’re together.”

“Th-then… you should both go to your hotel room right now and… just wait for the effects to dissipate.”

“Just what the buck does that mea-” Diamond slammed her hoof down on the tabletop so heard that a posterboard toppled over.

“Diamond.”

Diamond paused, her ears perked up at the sound of Jet in a dead serious monotone. She turned and faced him, and instantly saw his face - pale and sweaty, nervous, his eyes glazed slightly, breathing ragged and steamy.

“J-j-jet?”

“I think we should listen to them… and get to the hotel room… now.”

Jet turned and started to limp away toward the elevator bank.

Diamond turned and snarled at the three students, “You little brats better not try to skip town - I swear if you’ve poisoned us you’ll each end up in Tartarus as Tirek’s new prison-bitches, you hear me!?”

She glared, then turned to run after Jet.

She swooped in next to him, propping him up on his left shoulder as he staggered slightly, drool clearly coming out of mouth.

“Jet! What’s wrong boss…? Tell me what you’re feeling…” Diamond asked with concern, trying to check Jet’s bloodshot eyes, to see if he was perhaps having a stroke or some other sign of mental damage.

“Y-yes… D-diamond… look un-under….” Jet’s eyes glanced down under his body, then back at Diamond, his eyes filled with so much sorrow and pleading… so much need.

Diamond cocked her head, not understanding, then peered under her boss’s body to see what he was talking about - maybe a rash, or an upset stomach or…?

Diamond gasped.

Jet’s cock was rigid.

Not even like the impressive erection of that morning…. This was something else entirely.

She could see the blood pulsing through his dark brown cock - straining through the veins, which were as fat as the breathing tubes they’d just used to pump that gas into their lungs. The whole color of his monstrous cock was offset - pinker, redder than before with the ferocity of the blood pumping through it. The whole thing looked to be thicker, longer than it had been that morning - his head easily passing his navel, maybe 19 inches long at its tip.

And what a tip.

He seemed to be completely flared out - his cockhead a huge disc of rigid stud-flesh, the glans rock hard as his whole length quivered and bounced under him… and he was drooling.

Not from his mouth either.

It was almost like a constant trickle of piss… except she could see that it was the sticky clear strands of pre-ejaculate burbling from his fat cockslit and splattering down to the floor… leaving a puddle behind him.

And by Celestia the smell.

The stench of his cock was unreal. It was like she could see the waves coming off of him in musky clouds of pheromones, assaulting her with heat and warmth. It reminded her of the first time she’d gone into the colts locker room in high-school when she was in estrus… the pungent reek combining with her desperate need in a way that was oh so wrong… and yet so deliciously right.

And she loved it.

Diamond blinked as she felt something rising in her, a warmth that started in the base of her lungs… that struck out like a heatwave from an explosion, racing through every single one of her veins and arteries, splashing the potent neurochemicals as the gas took its full effect, the magical aphrodisiac invading her every muscle cell and neuron, making her shake with need.

Jet leaned his gasping head next to hers, leaning that hot, musky, rugged stallion chin into her ear and whispering into her addled consciousness.

“D-diamond… I’ve never wanted to fuck you so badly.”

The word fuck crashed through her ears. Dimly she felt a million objections, the long tall wall of rejection and professionalism she had built up over so many years, had reinforced with countless bouts of argument and logic internally… blown away under the force of this hormonal need, the sheer desire replacing any hesitation.

The word, fuck, crackled down her spine, racing out to her dock and shooting her tail high into the air.

With a groan, Diamond felt herself swell, at a speed she’d never thought possible - her clitoris sagging and ballooning outward under the weight of the firey passionate blood spilling into her. The sharp electricity of the little nub grinding against her lips made her gasp, as her ponut tightened and tensed, shooting off a cascade of muscular contractions that left her choking for ait.

Out. In.

Out. In.

Her lovebud winked in and out of her at Jet’s suggestion, grinding itself against her inner-lips as they began to slicken and swell with arousal.

Out. In.

“Y-yessss…..” Diamond groaned, her eyes shutting.

A thick splash filled the air behind her as she let loose an embarrassingly large splash of marecum, which splattered across the hotel lobby’s marble floor. Diamond saw a mare and her filly look over at them but could do nothing to prevent the embarrassing release of a second, larger splatter of her slick arousal as it loudly sprayed from her gaping marehood underneath her hiked tail to her shame.

The mother turned her filly’s eyes away and shook her head, as ponies pretended not to notice the otherwise professionally dressed mare wetting herself like some moronic whorse in the middle of the busy hotel.

Diamond slammed the elevator button with ferocity and leaned back into Jet with an unsteady whine, grinding her shoulder against his, her tail naturally finding its way to his in an act of sheer animalistic need.

“M-me t-tooo….”

Author's Note

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Oh damn, Diamond might be broken!