Sex Swapping Soldiers

It was no surprise that the military branches of America had long partnered with Silence Labs to continue to find ways to improve themselves. The contracts have only been going up dramatically ever since Amy Paramount had increased her sway within the company, even after her nanite incident.

As such, a new lineup of "Super Soldier" serums were developed, ready for live testing with the troops. Sal and Zeus, both seasoned members of the same troop in the Army, signed up immediately after hearing the news from their CO's. They had to sign a mountain of waivers first, ensuring anything bad that happened to them would not be revealed later to the public media. Having finished that, the semi-beefy pegasus was shown to a bed in the lab, awaiting his comrade there to grow with. He flashed a confident smirk at him as he entered the room, with a zebra nurse preparing the needles for the first dosage of this life changing serum.

It had also been months since he had last seen some “action”, as intimacy was heavily discouraged while on duty. No amount of porn was going to truly relieve his unnaturally high levels of libido, and often he was the target of complaints in the company's washrooms for leaving behind his mess.

Sal was a lot less of a man than the pegasus beside him, but personally he felt he was a much better choice for the next wave of soldiers. He was more focused, not being quite so horny as the horseman who had left more than one mess in the barracks. He was more agile in the air, being a lean and athletic crow without nearly as much muscle to weigh him down (why did a horse fly anyway?)

And, of course, he needed it more. Sal couldn't help himself, he was excited. He had joined to be the best he could be, after all. He'd gotten the intel on the Labs, they seemed like a dangerous place, closer to a non-governmental superpower than anything, but if they were friendly, that was great news for home... and for him.

Sal was glad his beak wasn't quite as expressive as most of the more mammalian anthros around him, it made it easy to look professional despite how eager he was to get some 'attention' from the administering nurse.

Zeus had certainly admired Sal for his commitment to serving the armed forces in the way he did. He'd certainly share his stash of naughty imagery, including imagery of Amy's initial rampage from news clippings of her nanite incident. There was no denying Zeus wished he'd have a girl like her, but had to only settle for decently sized women off duty for days on end to prepare himself for service again. Still, he was eager to see Sal joining him in becoming beefier than anyone in the barracks, and carry that energy back into civilian life someday too. After all, they were promised that the serums were permanent!

"Alright Sergeants, out with your arms. It'll be no different than taking your standard medical shots for foreign duty." The Zebra nurse said, leaning over to flash her big cleavage near Sal's face as she administered the serums. Zeus winced a bit, not being a huge fan of needles himself, before easing down after the 5 seconds of pain were over. The nurse went away, and Zeus got off the bed into the mirror, trying to flex. Nothing was happening yet, so he turned back to his feathered friend.

"Mmmm... think you're going to be as big as me then? I'm just looking forward to the day where wearing those uniforms will be obsolete. Being so TANKY that they'll have to let us roam around the grounds in our birthday suits. Not like our fellow soldiers haven't seen us naked before." He said with a smirk, biting his lip as he could start to feel some pressure in his pecs, feeling them balloon out a bit already.

"Well it might be a fun bonus," Sal said, rubbing his arm as it burned slightly. "As long as I'm bulletproof and tireless I'll be about as pleased as it's possible to be~" Sal had a schedule in his journal, a secret one that used all 24 hours, and the idea of being a perpetual motion bird seduced him as much as anything else. Although he couldn't pretend he didn't love muscle.

...He hadn't initially. He had thought he wanted a petite crow girl to settle down with, somebody loyal and good at cooking, but he realized it was just because the kind of muscle normal people built wasn't enough for him when Zeus shared those accursed videos with him. Amy was hot, terrifyingly, dangerously hot. Seeing her hands rip through solid steel had inspired Sal to triple his workouts, and that may have ultimately gotten him into this program.

He looked at his own mirror, watching his arm to see if it was really going to change... and he was not disappointed. In moments, he had started to swell more than he had in months of curls, biceps rising at least an inch even as he stared at them, the first change of many.

Zeus let out a potent groan now, unable to peel his eyes away from the mirror while years of focused muscle training were just added to his frame for free. He widened his stance, turning to his side, huffing as his calves and thighs became as sculpted as Amy's. His voice deepened a bit too, getting a little more set of inches to his height.  "Nggggh... come on, I know the way you looked at HER. We... we gotta be able to make her swoon if our paths cross. Damn, look at these guns Sal.~"

He said before bouncing his pecs from side to side, feeling his white T-shirt rip in place the more that grew into him. His package was next to follow, stretching out his camo pants to show off to his bird friend. Licking his lips, he surged another half foot taller, knocking over a couple of chairs in the room as he struggled to balance himself. The muscle gains came in audible spurts, like he was being punched by an invisible man while growing. His head was slowly disappearing behind his pecs now, with an extra definition and rows being added to his abs at the same time.

"Bigger... getting so big!~ Taxpayer money being used to the utmost potential!"

"Only if we ACTUALLY do the work of a hundred men each," Sal teased, his own body expanding all over. He didn't feel like it would be a problem, really. He already felt strong, dangerously, intoxicatingly strong, although that may have been the endorphins flooding his brain as a side effect. He rose in height, bones snapping and immediately reforming harder, supporting a seven foot statuesque frame, then an eight foot one.

His muscles wouldn't stop, his biceps swelled past the level of any amateur bodybuilder on the planet and rapidly closed in on the professional ones, but already far, far stronger. Sal tugged at his collar, ripping his own shirt clean off without even feeling the cotton in his talons, instead looking down at his abs tightening to a six pack with no sign of stopping there.

"And I mean that for the money AND the honey, heh~" Sal's voice was even a little sexier, lyrical and smooth instead of the shrill crow cackle he had been born with. Every part of him was becoming a perfect man... except, curiously, his pecs, which had only swollen about half as much as the rest of him... and his package, which hadn't grown at all. If that part only worked on horses, he would feel terribly cheated.

"A hundred!? I feel like I can do the work of a thousand at LEAST!" Zeus said bombastically, as his wings expanded. His growth was slowing down a bit once his frame had rumbled to around the 9 foot mark in height. Shoulders so broad that he would barely fit through the double doors leading out of the lab. Halfway through his package ripped itself partially free of his pants, letting his own musky scent pierce the normally sterile lab air. He had to step back to see Sal over his pecs at this point, certainly raising an eyebrow at the lack of his transformation. But, Zeus wasn't aware of what was going on, so he decided to punch his shoulder playfully.

"What's the matter? Need another dose already? Thought you'd end up bigger than that. Hmmmm... you feeling alright?" He said, just lazily stomping around him to get a better look, accidentally grinding his hips against Sal's as he was not yet used to his new sheer size. The stallion was getting a little antsy now, wanting to test out his strength to hopefully get approved for more dosages. After all, Amy towered above the whole city at one point! She hasn't since, but he had plenty of fap sessions dedicated to those videos alone. And as much as Sal was different from him, he too wanted the best for him. No studly friend left behind, after all.

Well, Sal got punched by a nine foot juggernaut and barely felt it, that was a good sign at least, but the stallion had a point, where was the rest of Sal's growth? He looked down at his chest, prodding the meaty - but not meaty enough - pecs only to stumble in alarm as his finger... sank in. They were soft?

As he looked, his chest did swell, rather massively, in fact, but rather than slabs of muscle it was far... rounder. Still taut and perky... but unmistakably tits. "What the hell?" Sal realized belatedly that his new voice, while breathy and quite alluring, wasn't exactly DEEP... "oh hell no..." he pulled down his pants, looking at his cock... it had never been quite THIS pitiful, the three inch nub retracting into his body, along with his balls, rapidly shrinking away until it was concave... the sad little husk only afterwards plumping up into an unmistakable pair of female lips, a hard clit bobbing gently at the top.

Sal had turned fully female, a foot shorter than his partner, and a girl.

"DAMN IT!" Sal brought his fist down... and the operating table crumpled instantly. The bird looked at his hand in shock, before testingly pushing his claws through the ruined steel, feeling a BIT of resistance, but not enough to stop him.

He... er, SHE withdrew her hand and hefted her chest a little bit, it felt soft and wonderful... and a lot sturdier than the table had. "Well... this is fine actually~" Sal said in a seductive female voice. "It's technically all of what I asked for."

The pegasus felt his jaw drop at the sigh of Sal changing into a near splitting image of Amy at this point. His pants did not survive such sudden eye candy, resulting in his package ERUPTING out for the entire lab to see. Despite it being strict protocol to not engage in intimacy while on the base, the natural urges were overriding everything else, damn the consequences and whoever might be watching. The stallion couldn't help himself but feel out every inch of Sal's new curves, especially those gorgeous breasts that he wanted to squeeze and coat in his cum.

"Holy FUCK, Sal. Didn't know you'd look damn hot as a girl. Just... oooof! Guess you know what it's like to be Amy then. Mmmph... I wonder.~" He said, getting behind Sal while brushing up against the metal walls, leaving dents that made the titanium reinforcements look like fragile aluminum foil at this rate. He parked his cock right on Sal's feathery booty, and leaned forward to grab her breasts openly while locking his fingers through Sal's smoother ones. "How about you and I let off some steam later? I'm sure if we impress the brass, we'll get certain... benefits as super soldiers. To think you're going to be a girl on par with the woman of my dreams going forward. Fuck, am I dreaming, Sal?~"

"If you are dreaming, knock it off, it's very rude to misgender people and it isn't even usually this literal," Sal complained, but there was no real malice in her voice. She did swat the horse's hand away, though, unwilling to be groped so thoroughly when she'd barely had time to explore herself... and grinned as she saw the pegasus' surprise at how much force was behind her.

Testingly, she put her hands against his pecs and started pushing, steadily forcing him back before taking a whip-quick movement and slapping the juggernaut on his back heavily enough to shake the facility. Maybe Sal had turned into something like Amy now, if her strength was that unlimited.

"I might let you loose a LITTLE steam," Sal straddled the horse, pinning him to the ground and letting his massive cock slip between her cheeks all the way up to between her wings, "But only after you've shown proper respect for the chain of command."

"Yes, do tell me about the chain of command, Sergeant..." A voice sounded into the room, the general of the base stepping in to see if things were getting out of hand. Instantly Sal snapped to attention, making use of true superhuman speed to hit a respectful pose out of the cowgirl position in less than the blink of an eye.

"Sir the project was a runaway success! There are simply some noticeable side effects. Sergeant Breeze appears to be slightly addled and I have had some... tissue growth." Sal's professional attempt to downplay her transformation was almost amusing, given the pert, g-cup breasts softly rippling on her very, very naked chest.

Zeus was dumbfounded by how strong Sal was at this point. He had the muscles and the taller frame to compete, but it really did quickly seem like he was at Sal's complete mercy. Maybe she did get the better end of the serum? But those annoyances were brushed aside the minute the general walked into the room. He half rolled his eyes at Sal's panache for trying to be as professional as possible. Part of his gaze noticed Sal's nipples were erect despite her demeanor at this point.

Zeus too stood at attention, gulping as the General stared them both down closely. "Sergeant Breeze! You stand here as a respected member of the Army and yet you were about to break a dozen protocols? If you weren't under the effects of an unknown Super Serum, you'd be booted out at ONCE considering your reputation." The stallion grunted a bit, certainly tempted to snap the commanding officer for talking down to him like that. But he had to play nice, hoping that following orders would land the two of them with the goods.

"Sergeant Smith. Considering all that has happened to your... erm, you, we will need to monitor the full effects of this first dose. You will both be moved both to a larger lab space in case you keep on growing." He turned around, hands clasped behind his back. "For the sake of this trial, you are free to do as you please in such a space. We need to know exactly what Ms. Paramount has designed for us, and if that means understanding it could turn you both into useless horndogs, we'll have to reject it and figure out what to do with you. After all, none of this is reversible."

"Thank you sir! We will endeavor to find our limits properly," Sal gave a salute as she thought about it. Yes this would be a rather terrible formula if it made all the men perpetually horny. Sal was pretty sure she could already leave the base any time he wanted to... just by walking. It would be good to have an understanding of the limits of her durability in case anybody else got exposed and wasn't quite so responsible.

She shuddered to think what would happen if the formula was inheritable by offspring. The mere smell of her partner made her constantly horny. If she had been particularly into men or at all irresponsible, she'd probably be begging for him to breed her, and then where would they be? Indestructible kids. A complete nightmare for security. In response to the mere THOUGHT of this, she felt her chest grow wet, massive tits starting to drip thick white milk down her chest. Another awkward side effect.

No. She would truss up her counterpart with her wings and drag him to the secure facility and make sure she properly understood both their bodies before anything happened. "Permission to reach the facility at speed?"

"Sal what are... w-aaah!" He was silenced as his frame was pressed against Sal's back, fingers locked with hers before Sal's next question made the stallion quite nervous. Those watching the pair were a bit hesitant, before the General got on the intercom to respond to them. "What do you think we're so stupidly funded for? Take the quickest, most direct path to Lab No. 23. Staff... stay alert for a possible presence of two Super Soldiers making their way through." Zeus looked ahead now, finding the dents he had accidentally made in the wall. The building was meant to contain all sorts of experimental weapons, and even shield from nuclear blasts in the most dire of situations. His cock was already leaking on the floor at the thought of showing off his new might with Sal, and certainly taking care of a clearly needed bird the second they got there.

"Sal... are you even you anymore?" He said, flashing up a grin, just a moment before the bird dared to take that first dash towards the wall, blasting through it as easily as tissue paper without a single scratch on their beefy bodies. "W-woah! Holy SHIT!" He said, struggling to keep up, not used to being in the hands of someone superior and stronger than he was.

Even the air cracked under the bird's onslaught, Sal cleanly breaking the sound barrier as she took a fairly direct route to their new research facility. Her mind was overcome by too many fun visions. Running on a treadmill capable of moving at insane speeds to show off how fast she truly was. Some kind of elaborate industrial machine that could actually give her a workout. She'd show them the true potential of a perfect soldier.

Except... when she arrived in the rather large, wide open lab, it looked more like a warehouse. And the strongest facility was a triple reinforced shell around it, one she hadn't bothered with yet after seeing the doors standing wide open. Inside there were only... really piddly 'testing' facilities.

Sal put her hands on either side of a rusted old tank, and lifted, machine flipping over cleanly before collapsing under its own weight as she simply 'tsked'. Up in the rafters, she caught a number of snipers watching the two of them, her vision sharpened enough to keep up with her body. "Hey Heinemann!" She referred to the sniper by name, partially out of genuine familiarity, but mostly to scare him. "Could you try to nail me right in the stomach? I need to check something pretty badly."

Zeus ended up being a bit dazed, but totally unharmed as he reached the lab itself in Sal’s wake. He took a moment to bend some steel beams to the point of snapping them in half after enough exertion. Tossing them aside, he whinnied in surprise when Sal dared to conduct a dangerous test of her own. "Sal, are you serious!? Those rounds can rip through a tank's armor with ease!" But it was too late, since both snipers were ordered to comply with almost anything the pair asked of them. A loud set of bangs rang through the air, half sounding like cannons, before the bullets collided against Sal's abs! There was a soft ping as the deformed and flattened bullets bounced off of the crow and onto the hard floor.

The stallion felt one-upped, hating that someone he looked down on for so long was making him look bad during this test. "Seriously!? Shit, you two! Heinemann and Maverick! Shoot me next!" They both fired bullets right to his pecs this time, which deflected the bullets sending them flying back towards the ceiling as more dangerous projectiles. "Oops! Uhhhh... at least that didn't hurt!" His cock was still humming, dripping, and throbbing for attention. A simple brush with his hands was enough to send shivers down his spine. His tail started to swish behind him, creating near hurricane force winds that pushed hundreds of pounds of equipment back against the wall. Little did he know that from taking what would be normally fatal damage, his body had tightened once more, with that feeling of growth hitting him as well as before. "W-what the... ooooough?" He flexed and in a single burst grew another couple feet, almost doubling his muscle mass as well, until he wasn’t able see his hooved feet beyond his mass of muscles.

"R-reporting on effectiveness of the formula," Sal said, pulling a recording device down from one of the stations, trying very hard not to crush it as her own body grew as well, hopping up another foot and a half as her muscles swelled and swelled. "Not only is immunity to high caliber rounds standard, even for the weaker 'male' result of the formula, it seems that attempts to damage modified bodies prompt them to... overreact, growing even stronger."

The snipers panicked slightly, the ricochet nearly taking their head off and causing them to crack off a couple more shots. Sal caught them right in the chest... but caught them as they bounced, actually watching as if in slow motion her tits compress and SLOSH under a hypersonic projectile, catching it on the backswing before she swelled to finally equal Zeus in raw mass with a jet of milk flying out of her.

Sal forced herself to talk as slowly as she thought she could manage, trying to remain comprehensible to the unmodified. "Durability, strength, eyesight, reaction speed, and movement speed all seem modified to such a frankly absurd degree that I feel I might break the world at any moment."

Sal frowned. Could megalomania be a side effect? She didn't feel like it. It seemed more like... a realistic assessment. If attempts to damage her made her even greater, and she had ALREADY been so close to invincible, then what could she be except immortal?

It was to her credit that her first thought was to dispose of the world's nuclear waste personally. Perhaps a bit less so that her second thought was to hide the remaining serum. Her third thought was a horny one, but that barely counted, the mere HINT of Zeus' smell up in the rafters had already gotten one of the snipers off.

Zeus reached over to catch a sniper that fell off the railing in their lustful stupor, then laying them on the ground before they scurried off, likely to the bathroom to finish off their masturbation fest. The stallion was about 12 feet in height at this point, returning back to press his beefy frame all up against Sal's needy body. "Easy Sal. Why do you have to make reporting the facts so... so arousing?~" He said with a teasing nicker, only his body to start thirsting over the leaking milk. But after the last time he tried to throw himself onto her, that ended poorly. Then again, she was certainly moments away from jackhammering him as well.

"Hmmm... what other tests should we conduct? We're far too big for any industrial grade machinery already. Maybe we should see if we can bench press entire cargo ships eventually." The stallion had remembered the nearby canal about 20 miles from the base, where a lot of their supplies came in to drop off equipment and weapons for testing. "Maybe we'll get another dose yet? I mean, as big as we are, someone like Amy still outclasses us. I've always wanted to enjoy the view while the size of a skyscraper one day."

The General was sweating bullets from his office, unsure whether to chime in so soon. The pair had made so much damage already. Was it really a good idea to pump them even bigger? The serum itself was so expensive, but the cost savings of having an army of two giants compared to a larger formation was becoming more alluring. For now, he remained quiet, ready to see if the pair could handle each other's super strength, speed, and libido.

"Well Sal. Got not much else to do in here but see what our bodies can do. What WERE you going to do for me in the last lab, hmm?~"

"I mean, the serum was an injection. How would it even get in our bodies at this point?" Sal tore off the barrel of the old tank and jammed it against Zeus' neck to prove a point, the thick traps alone able to deflect the bar aimed right for the jugular (obviously Sal was fast enough to stop if it somehow did go through, she wasn't QUITE trying to kill her partner.)

After proving her point and perhaps scaring him a little, though, she did give him a teasing nip on the nipple... her beak actually slicing through and drawing blood. "Oh. Huh." She almost said sorry, but was far too distracted by having her question answered. "I guess we could do that." As she watched Zeus, his flesh knitted back together quickly... but, crucially, he didn't get any bigger. A megasoldier could hurt another one just fine, it seemed.

For some reason, she didn't feel inclined to officially record that information, the revelation of it hidden by her embracing the horse. A distraction was probably in order.

"But since you asked," Sal made a show of sighing exaggeratedly, "I was going to say that you could fuck my ass if you REALLY had to." The crow girl turned around, lifting her wide fan of tail feathers and showing off a perfect bubble butt, slapping it lightly and getting no response... before spanking herself hard enough to send out a shockwave, leaving a fatty jiggle right in Zeus' vision. "I'm not willing to risk testing out my new girl organs quite yet, but at the same time I'm sure it would be very unsafe for a cock like yours to get off if it wasn't surrounded by something... durable."

Zeus winced from being nibbled on by his friend here, but was relieved as his flesh regenerated in the blink of an eye. Perhaps it was for the better they couldn't rely on one another to grow bigger. Still, the call to indulge his throbbing monster was too great to ignore much longer. He got in position, slamming both ass cheeks together to send another shockwave out, likely deafening anyone in the room with them from the raw power alone. Zeus lined up that huge cock of his at least between that booty, respecting Sal's wishes to poke at her tailhole, struggling to fit it inside for now.

"Hey... fine by me. I really could serve to be less distracted. Unnggh! B-better... focus on what I can do for the testing at hand, right?" Without much warning, he humped and pushed the pair against the wall for support, starting to rail that fat bird butt of hers without fail. Every thrust was akin to an explosion, only dampened by the sheer density of her ass. The vibrations were felt throughout the lab, shaking the entire facility nonstop as he pounded Sal properly. "O-ooh fuck!~ When's the last time you got laid, soldier!?" He said in jest, certainly able to sense Sal's need to fuck, repressed by his duty to follow orders around the base.

"Nnf!" Sal bit down hard, using her stronger legs to stabilize them as much as possible and spare the base's poor wall a death by battering ram. It actually wasn't easy, Zeus' comically oversized cock was bigger than most people, and she could see the outline of his flare through her stretched out abs already, despite barely being halfway in. She had to balance all the positioning with staying as relaxed as possible, because, well...

"In the ass? Never." No need for Zeus to know he had been a capital V virgin... just a little too versed in porn dialogue, "You awful monster, shoving the world's largest cock in the world's tightest virgin ass, have you no shame at all?" She didn't squeeze. She very pointedly did not squeeze, or milk him, or let her body resist in the way it was telling her to. She was supposed to be measuring HIS ability... not milking him catatonic.

Zeus found the tightness of Sal's virgin ass far more than good enough to sate his lust. He eyerolled at her ability to talk dirty during sex, but found it oddly charming. And as such, he continued to escalate his thrusting power and speed the more he got used to such a booty. A hand of his braced itself against the reinforced wall, with the other hand going down to grope at her milky tits nonstop. Flying drones got in close to them, scanning their bodies for vitals, any further mutations, and of course, tons of saucy footage to likely motivate the other soldiers on base.

"H-haaah!~ What's wrong, Sal? If I was in your position, I'd be fucking demanding more with this horse cock stretching you senseless." Precum gushed away inside of her, making it easy to gradually rack up the intensity with each thrust. "Hufff...uufff... maybe as a Super Soldier... y-you can hold WAY more cum than you realize. Uff! I t-think I got swimming pools worth of cum already, just for you. Ooooh!~ Yes! You're such a good bird toy. C-can't blame you if YOU want to cum this instant already.~"

'Fuck it' Sal thought 'he needs the lesson', and let themselves get a little into it. Immediately their ass slammed tight with a force that could have pushed any other man's entire body into dust, Zeus got off with MERELY seeing stars as his pleasure intensified tenfold. "I'm NOBODY'S toy, Sergeant." Sal's voice was dangerous, their wings flaring wide as they got control of their positioning in a single massive flap that FLEXED the entire dome.

"A gun is not a toy. It is a precision instrument to be used only in times of great need, or in order to prepare you to be able to use it correctly in said times." Sal began backing up, tilting the pegasus over again as she raised herself high, perched atop his spire as he lay dazed on his back. "A -nuke- is not a toy. It is the same precision instrument with the same restrictions, merely restricted to people who are far more powerful."

Sal's talons dug into the steel on either side of Zeus' as her body hungrily pulled him in as tightly as it could. She gave in and SLAMMED herself down, seeing just one star in her own vision as she hilted herself on a cock bigger than her torso. In truth the whole affair had been far more pleasurable than any session she had ever had as a guy... if not still one percent as satisfying as knowing how strong and able she was now. "I'd say I'm quite a bit more dangerous than a nuke, and quite a bit more restricted in access as well. If you can think I'm a toy... well, you must not be able to think at all."

How right she was, even if it was her own fault.

The poor titanic stallion never knew Sal carried such respect for himself. If anything Sal was far from the meek fellow he thought the bird was. It was a harsh reminder to treat his partner with respect, despite the action they were performing. Part of him wanted to wield the new strength she did, even in spite of the obvious consequences. He would not soon forget these words the moment Sal ass slammed his entire body down onto the lab floor. The entire lab complex of the base quaked, cracking the entire foundation as a result. If Zeus wasn't there to absorb the blow, half the base would sink into a fissure at this point.

But even for the experienced stallion, such an stimulus was enough to make him absolutely explode with bliss inside of Sal's bubbly ass. He whinnied and tried to blubber out an apology, only instead testing Sal's capabilities to absorb such insane amounts of cum. Zeus normally would have been insulted to be so roughhoused during sex, but instead, he got that lingering college minded asshole fucked out of his mind. He respected Sal, knowing full well to focus on the pleasure first instead of clearly trying to establish a toxic dominance. Still, he wiggled his unhurt body under the bird’s beautiful ass, emptying out his balls in a minute before relishing in his after glow. "Y-yeah... oh FUCK yeah Sal... you're... you're no toy. You... you are a dangerous Super Soldier like I am. Although, it's hot to think about how we can literally screw in a battlefield, grow, and just vanquish our enemy in the best of ways. Truly unstoppable, aren't we?~"

Sal didn't really know what being cum inside was supposed to feel like. Sal -really- didn't know what shoving a water cutter up your ass would feel like to a normal person. She imagined they'd both be quite a bit less pleasant than what was currently happening to her, though. Zeus' load was, if anything, even more absurd than the rest of him, launching out like the shot of an orbital sabot and splashing against her nerves.

Sal didn't know what a female orgasm was supposed to feel like either, but given how much she was enjoying her current feelings if it was anything but that she probably wasn't missing much.

Her body absorbed every bit of the impact, greedy for it even, clamping tight on every drop of the fluid; her gut rapidly swelling out over the bunker floor, expanding far larger than her entire body in seconds with no sign of stopping.

By the time Zeus finally finished his first load she had bloated almost to the point that she filled half the aircraft hangar, everything she knew about physics telling her to lie around as a useless blob thanks to her overloaded guts, but her pride had pushing her feet down and 'popping' herself off Zeus' cock cleanly, her legs strong enough to still stand and drag herself around... and her ass strong enough to hold in every single drop.

She sat beside her partner. "I guess so. Although even on a lackadaisical deployment I don't think the order would be 'screw, grow, then victory', I know if I saw a girl getting turned into a cum balloon I don't know that I'd even get involved, much less shoot her."

"Well, I'm sure the enemy would be more inclined to try to stop us if we start screwing like that. Not sure anyone would just try to sit there and wait for us to crush their entire front line and eventually their cities." The stallion was a bit in shock by the vast amount of cum that had left his body from that one shot alone, not even realizing he EVER had that much to give in the first place. The observers in the lab were long gone by now, afraid they were going to go at it again or try to test out their bodies in increasingly more dangerous ways.

"Pretty sure if someone were to detonate a warhead in here right now, it'd probably spell doom for the whole base. I am a little bit worried though. If we just keep growing from taking damage, how are... we going to live day by day life? I don't know about you, but I don't want to be stuck in an underground base forever at the whims of our superiors." Those words made the general wince from where he was watching, already scrambling to see if there was something that can be done to end the lives of these two super soldiers in case they did decide to disobey such a chain of command. The bloodhound paced back and forth in the main lab's HQ, certainly knowing his entire reputation was on the line with this crazy project they commissioned from SilenceLabs.

Zeus also couldn't help but think about what it'd be like to trade places with Sal. What if he were the one getting the female end of the stick? Would Sal be as forward as Zeus was? There was no denying having such serum coursing forever through their veins had amplified all sorts of normal needs. And right now, Zeus's stomach was grumbling non stop from exerting himself a bit and having a good round with Sal. "Speaking of which, they really should stock more food just for us now. Can't wait until the day where we really are the only ones on base out of sheer necessity~"

"God, you're such an asshole!" Sal playfully swatted Zeus, sending her body jiggling massively. "I can't believe I let you stick it in me. Destroying civilian cities would still be a war crime. The purpose of WMDs is preventative. We're not 'stuck' here anyway you could leave at any time. -I'm- still here because -I- am both loyal and nice." Sal busily ticked down all her objections to her partner's smugness, made only slightly comical by her rippling stomach.

The general almost turned around. If -one- of them was working correctly, maybe it wasn't so bad. He could compliment Sal, maybe promote them and see if the ranks meant anything... but he doubted it. He needed to regain control, find the rest of the serum and start... administering it more carefully. There was an obvious obstacle between him and doing so, but he didn't know about it yet.

It meant that he missed it when Sal's massive gut started rapidly reducing, the bird girl oblivious to her own body shrinking by feet at a time as she continued to complain. "What we SHOULD be doing is creating other, lesser soldiers like us since we can't be omnipresent;" Sal's cum-bloated form sank all the way back to their humanoid, but hyper muscular form, "focusing on our image so people know they can respect and LIKE us as well as fear;" but her body didn't stay there, instead, her chest started to deflate, flattening out much slower than the ocean of cum she had just metabolized, while her hips tightened up slightly and her face got a little sharper, "we have the maximum level of firepower that can be useful and everything else is propaganda!" Sal almost coughed on the last word as her voice dropped several octaves at once, becoming a smooth bassy thing as she looked down... to see he was a he again.

A jet black cock every bit the equal of Zeus' massive spire was dangling close to the floor, a set of massive black balls dangling to his knees and plumping by the second. He gave them a small rub, confirming that his tits really had been replaced with some massive pecs and his cock was back again, and found his test confirmed with several gallons of pre shooting out just from the slight stimulation. His balls felt so heavy.

He could tear through metal like it wasn't there, but his balls still felt heavy.

"Um, if you're hungry, though, I might know how to solve that at least," Sal's tongue lolled out as he felt himself up, pouring pre everywhere with the slightest stimulation

Zeus certainly didn't mind Sal absolutely taking down his concerns in the matter she did. But such words would certainly go over his head as he witnessed exactly what was going on with Sal's body. The busty bird that he took a massive liking for was becoming a near splitting image of his own beefy self. "S-Sal? The fuck is going on with yooOOU!?" The beefy stallion said, all before he started to feel his cock start to recede back up into his crotch quite rapidly. His voice turned sharper and higher, as his face became softly feminine. The stallion frowned as he felt his beefy pecs soften up to become massive breasts the envy of all women out there on the base.

"S-shit! NO! No no no no!" He... now SHE said at this point, feeling like that she was becoming an entirely new person. But since she just screwed with her good friend here, the bird's offer of feeding a hungry pegasus felt so proper and right. But like Sal before, all that strength was becoming super amplified. Yet despite getting such a boost in power, the submissiveness felt more natural to Zeus than it did for Sal. She wasn't going to let him do everything without a bit of pushback though. Instead, Zeus here got on her knees, sticking two fingers between her thighs to feel out this new feminine sex for the first time. Her milky nips became quite erect, spilling out milk from that slight exploration of her own body!

"Fffff! Shoot, Sal. One round of butt pumping and you're becoming a bigger horndog than I am. Cute~" She smirked and placed her hands right up under Sal's cock, allowing it to settle between her breasts before giving that tip of his a wee smooch. "When we're on the battlefield together, I better get used to your protein filled spunk, soldier! Mmmm, feed me DAMN good. I could stand to get beefier.~" She said, before opening that maw of hers to swallow his penis head eagerly. Her tongue slathered the length of each vein it could reach, while her hooved legs stretched out to press against the massive cumtanks of his, eager to see how much he was truly packing.

"If... this is how you felt, I might understand a BIT why you were such a dick..." Sal seemed to struggle to talk as his brain was already melting under the insane level of hormones now flooding his body. His balls were currently flooding his veins with enough testosterone to supply the entire rest of the army. His every thought was of how to FUCK and DOMINATE.

Which, admittedly, he had no reason not to do.

Sal slammed his hands down on Zeus' shoulders, burying her in a crater through the metal floor as he gripped tight, ready to facefuck her into oblivion. "But that doesn't mean I'm letting you off without knowing your place!" Sal's beak twisted into a snarling grin as he started to rock his hips, slamming back and forth against his partner, his hyperdense balls swinging so pendulously they slammed into Zeus' new tits harder than tank shells with every swing, sending sprays for fluid from the both of them.

As Zeus' gut started to swell up from pre alone, she shuddered. The both of them being stronger in their female forms was the only reason Sal wasn't obliterating her right now, and he was only going harder.

Zeus was BUILT for such raunchy sex, no matter the form it came in. She found it cute that Sal wanted to make an example out of her for all to see in this base, now locking her hooved legs around Sal's own beefy calves, squishing more of his nuts in the process. There was absolutely no way she was going to let him go until he blew proper, moaning out nonstop over pleasures given to his shaft. Now silenced, her tits and spraying pussy did most of the talking, already damaging the existing 'testing' equipment meant for them to use. There really was no surprise how dangerous they were at his point.

So Zeus shut her eyes, riding out the orgasms that were already spilling out between her legs. She had only started being a mare, so she figured she may as well milk as much fun as this mysterious serum allowed. It was a miracle the pair had not found other ways to grow beyond taking damage, else they would be even more titanic and a threat to the whole world by now. But as durable as she was, there was no denying sucking cock for too long in this position was going to leave her quite sore. Already, her belly had become quite chubby, starting to push Sal upwards to force him to work a bit harder in pile driving his cock in its new home.

A bit harder, but still not really very hard. Zeus' plush curves were the only thing in the world he couldn't destroy, but they were still soft and delicate. Well, soft and delicate over tons of pure muscle, but they were both tons of pure muscle at this point, it was simply a fact of life.

Sal was more disappointed that Zeus wasn't nearly as good at oral as he'd hoped. He didn't really know why he'd think otherwise, they were both guys this morning, and ostensibly straight, but the crow felt like he was mostly pleasuring himself WITH the hottest girl in the world.

Which he supposed was fine by him, clearing the floor with a flap of his wings as he got himself in the air, changing angles rapidly as he explored every crevice of her body. She was delightfully stretchy, if nothing else, and if she tasted anything but his cock for the next week, he'd know he'd done his job wrong.

Especially when he started cumming.

STARTED, because flooding her mouth and throat with his white hot spunk didn't require him to even begin slowing down.

Zeus could sense Sal was trying to enjoy himself, finding his thrusting to be far too primal to try much of anything else but taking his cock directly. Tongue work and nibbling down over those veins were practically impossible at this point, especially with the flood of bird cum flowing freely into her slutty mouth! Once she was airborne with him, it was so effortless to keep her thick and curvy body supported via just her mouth and leg muscles. Her beefy arms pressed tightly against her breasts to squeeze down on that gushing dick, doing her best to guarantee not a single drop of cum would spill out the sides of her overstretched mouth.

She used her newfound strength to her advantage, turning the leg inward to simply smack at those cumtanks with the force of a missile against them from her knee alone. The air displaced from that blast was enough to start putting cracks in the bulletproof windows nearby, sending the scientists into yet another nonstop frenzy of fear. They had essentially created two unstoppable Gods at this point, incapable of doing much else but get stronger if anyone was foolish enough to attack them. Even their internal organs would just brush off any form of poison, virus, or nanobots that got in them to destroy them from the inside out.

Regardless of the chaos, Zeus's belly was starting to weight the pair down, being able to maintain some contact with the ground despite Sal's attempts to remain airborne during his fuck spree.

Sal lost his balance, getting a little too wild. He'd expected Zeus to be much stronger than him, but slapping his balls hadn't hurt, it had just sent his mind... reeling. The bird tilted back a bit... his cock withdrawing, letting his cum loose. The first few spurts fired straight up, hitting the reinforced ceiling and simply smashing through. Every shot from the bird was far, FAR above escape velocity, shooting away from the planet and never to come down.

Every wild shot might be some planet's panspermia in millions of years, but for Sal right now he was dangerously out of control, trying eagerly to get his own cock in his mouth, swallowing small amounts and flooding out of his cheeks, rapidly saturating the floor of the bunker as his load started to rise. By the time he gave up and let his orgasm finish upwards, he had so fouled the bunker that the scientists found their panic slowly being forcibly replaced with arousal.

"Heh... heh..." Sal said, basking in the afterglow, "I think that confirms two man teams are a necessity for this project."

Zeus had long since lost her cool with cumming absolute bunker flooding amounts of femcum and milk from witnessing Sal's orgasm.  The way he was able to reel everything back in from an explosion like that made the mare extra aroused from such control of his body. It took a long while before she could sit back up against the other end of the lab they were in, huffing as the slight exertion of her body blew away the wall like aluminum foil.

"I'd be rather upset if the general didn't have us undergo this together. Ngggh. This is just when we're occupied. Imagine if we were out there alone? No one could really help us until we'd outgrow this planet and find some suitable life out there. Mmmm... you could have just stuffed that monster in me instead of your beak you know?" She said, absolutely being more loose with the idea of getting knocked up than Sal was for now. She slowly got back to her hooved feet, wanting to get some fresh air away from the sex fumes they made. With a single leap, she decided to bolt from the lab and far into the desert surrounding the base.

The entire lab was blown away from the force of lift off alone, thankfully the general and scientists long retreating away from them to not get in the way. Zeus landed above some nuclear missile silos, spreading her wings out to soak in the sun's rays as it caked the extra cum around her body off. Her beefy frame and breasts swayed in the wind, awaiting for Sal to come join her to finally start doing things on her own means instead of just obeying the general.

Sal watched his girl go, not really sure how to feel about that. Even being submissive to his cock didn't translate to her being any more cooperative. Sal took a moment to pick around the base, making sure everybody was actually safe and politely apologizing for it getting so out of control.

The general, for his part, was desperate, not wanting Sal to leave, begging him. "P-please soldier. Don't hurt us. Stop your partner. We'll do anything!"

"Anything?" Sal said hopefully, deciding to draw up a little contract with his superspeed. The general didn't even have the luxury of reading it, he simply signed.

Seconds later, Sal showed up next to Zeus, relaxing on the same outcropping. "You know, we don't have to outgrow the planet. We could just rule it. Hang out here as invincible juggernauts for the next few thousand years, spawn a new breed of human to conquer the stars. We're already the most perfect beings to have ever existed. 'More' feels a little unnecessary to me~"

Zeus became extremely flustered at such news, her pussy once more drenching the dry sand and rock under her. "We're not going to grow anyway unless idiots start unloading their weapons on us anyway. But... you do have a point. I just thought I'd be wanting to breed with my friend for the longest time. Yet, what if life gets a bit complacent? Maybe we'll want to grow and populate more planets just for the hell of it." She said, trying to plant such grand dreams into that malleable mind of his.

"I mean, power eventually corrupts. We have each other to balance each other out, but eternity is a long time to spend for sure." She shook her tits at him, not wasting time but to bump Sal down on his back, simply straddling her hips over his torso, planting his cock between her ass cheeks to grind it casually. "Is that what you really want to do, Sal? Expand our influence and whatever we damn well please? Long as we don't harm others, I guess. We just have to learn to hold back SOOOOO much.~" She said, giggling, raising her hips and slamming it down over his crotch, sending a dangerous shockwave and crack in the direction of the base she leapt from.

"Wellllllll, I do have SOME news there." Sal fished out the carbon copy of his contract from between his pecs, the sweaty paper still legible. "I'm now the OFFICIAL head of Project Seth. I have full discretion over the creation of more soldiers just like us. And what's that?!" Sal pulled some vials out of the same location, revealing them... along with a large stack of paperwork, flashing them past Zeus before tucking them back. "The remaining formula AND the instructions for making more! Why, we can make anybody we want as strong as us, as long as we can trust them. We just have to be patient, soon enough we'll have a whole little community we don't have to be delicate with!"

Sal fidgeted slightly, before reaching between his pecs again and pulling out a broken, empty vial. He spread his muscles wide and looked for where the contents had gone, unable to find any sign of it. "...That's probably fine."

Zeus went from being ultra giddy about Sal managing to secure the rights to truly enact the world they wanted to an absolute fear about what Sal was about to BECOME! She dug through those pecs, trying to find any leftover serum, blushing as he just took another dose by accident. "W-why did you put the vial there? Shoot! How badly is such serum stacking going to make us? You feeling okay? Uhhhh." She would try to get off of him, feeling Sal's body start to rumble underneath her wobbling mass of bloated curves. She was quite chunky already despite having beefy arms and thighs, strong enough to stay as mobile as she needed to be.

"Erm... half of me is wondering if our bodies could start making such a serum someday. Imagine how scary that would be."

We... we were..." Sal started feeling dizzy. "We were already immortal. It would be... completely... completely pointless to ever take more than one dose." He fished the documentation out of his chest again, reading it closely... as his chest started to rapidly expand.

"Besides which..." Sal's cock buried itself in the ground, even completely flaccid it was strong enough to simply GROW through the land. "There's no reason... to even believe... an extra dose would stack the effect." Sal furiously looked through the specs. Trying to work out what was happening to him.

"And producing the serum inside our bodies would be terrible. We would start creating superhumans accidentally, rather than carefully. I want to rule a world of perfect gods, not make fools and weaklings invincible."

Sal found the relevant passages. Apparently doubling up doses stabilized some of the side effects, but resulted in undesirable personality changes.

"Aha! See, I found it here, a second dose will do nothing to make me any stronger or more dangerous." Sal's chest swelled again... unmistakably forming into tits once more, despite her cock being bigger than ever, her voice stabilizing into an even breathy tone as she unmistakably turned into a futa. "The only thing it does is cause 'personality issues' and I'm immune to even that! I'm the same goddess I always am."

Sal crossed her massive arms under her tits, fishing her cock out of the dirt and shaking it off, cleaning it by slapping the rocky outcropping in such a way as to quake the surrounding landscape.

"So you just worry about worshiping me and -I'll- worry about making more. When we actually NEED it. If you just can't stand your goddess being so small, shove one of those nukes up my cock and stop micromanaging my project!"

Zeus bought into her every word, unfazed by how Sal cleaned off her own dick to cause more chaos around them. She didn't even care that Sal acted like she's never been some meek soldier from before. A virgin one at that, complacent to obey authority. Now Sal was the clear authority, and Zeus's submissive instincts held her prisoner before the titanic bird. The mare dropped to her knees, slurping up eagerly to keep that cock of Sal's pristine from any remaining dust in the air that stuck to such a divine piece of meat.

"Y-you got it, Sal! And yes! A true goddess like yourself should be far, FAR bigger." With clear greed and power envy in her voice, she would reach back to rip off the silo coverings like cheap soda cans. It took no effort to fish out such loaded nukes, deciding to place them one by one in that urethra of hers, uncaring of the results that would come from such a misuse of their power.

"A goddess like ME doesn't need another inch. But if my worshippers insist then who am I to deprive them?" Sal said, a hint of false modesty returning as she massaged her cock, enjoying the sensation of metal heading down them. She had to admit, she really DIDN'T know how big she'd get from setting all of those off. It was a lot more than she expected.

But the idea of her having too much power was an absurd one. She was to be the ruler of a new race of gods, after all. Whatever it took for those gods to consider her overwhelming, that was what she would have to be.

When she was too big for those who could never be big enough, she would finally be her true size.

Zeus ensured that she would have some nukes of her own to keep pace with Sal, assuming that she allowed it. But the last thing she wanted to do was to make Sal any more annoyed than she was! Her tongue worked such a spire, now getting down to suckle heavily on those nuts of Sal's. Everything about her friend redefined perfection. She'd find herself wanting to be knocked up to carry out such a breeding wish, followed by returning the favor someday as well. One heavily fortified military base couldn't handle the pair having casual fun. What if they started to get serious after this next growth?

The General still maintained feeble hope that Sal knew what she was doing, despite their world about to forever change the longer the pair would explore their evolving capabilities.

Zeus set off the nukes. Not intentionally so much as just an inevitable result of cramming so much fissile material into her girlfriend's balls, the explosions beginning and seeing off the end of the world. Sal grew. She grew so titanic so fast that Zeus was almost immediately lost beneath her toes, pegasus crushed by the only being capable of harming her as the jet black deity rose above the desert.

The world closed in around her, gravity of her absolute density pulling it tight to her, continents and cities breaking apart, leaving an ascending beast alone in an ever expanding field of rubble. The atmosphere disappeared inside her lungs in a single breath, sun and space burning and pulling her bigger, ever bigger, as she rose and rose.

Then she exhaled, and she was back in the desert, the same juggernaut size as always... but glowing brightly.

"Hooo, that WAS a rush." Sal waved her hand and stabilized Zeus, converting her into a futa as well, letting her calm down a bit... but leaving in the submissive attitude, she'd need it.

Then the newly minted crow goddess flapped her wings, the remaining nukes rising into the air, before she squeezed and they collapsed out of existence.

"Alright hon I don't think you can be trusted with these. Not really needed any more."

A beckoning finger went towards the base, pulling the general out to them before Sal shoved the remaining tube of formula in his chest, flicking his forehead and accelerating the transformation as he went from chubby bulldog to a gorgeous futa dog-girl looking dazed.

"Figured I'd say thanks boss. Well, ex-boss, but you can be my left hand girl."

Sal disappeared, moving too fast to be seen even by the other juggernauts she'd made, coming back into view in front of a dust cloud... one that slowly cleared, revealing a newly built city... one sized for the three of them.

"Come on then, let's build utopia."

She whispered to Zeus specifically. "Do a really good job, and I'll show you what I look like bigger than the skyscraper district~"