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Victor yawned, glancing lazily at his watch. He had only two hours left to go on his shift, thank goodness. The man had never really been good at holding up a night shift; he could never really get himself to sleep in the middle of the day, and so found it difficult to keep himself awake when it was his turn to watch over the laboratory at night.

On the other hand, nothing much usually happened in the middle of the night. There weren't many people foolish enough to try to infiltrate a well-defended compound such as the one he worked at, and most of the place was protected by automatic defenses anyway. Victor didn't actually need to do much at all - his job was to keep an eye out for intruders that got past those defenses, sure, but that was about it. In the two years he had worked here, nothing of note had happened.

It was an easy job, though. Victor was paid fairly well, and things were quiet enough during the night that he could usually just take frequent naps to get himself through the shift. More than once, he'd slept through the entire shift, only to be woken up just before the next guard had come in. No one had caught him thus far - the ones in charge were all too certain the defenses they'd employed would work. As far as they were concerned, Victor's employment was just a formality.

Plus, there was a cute scientist he got to interact with from time to time. The guard thought maybe Frank might have been interested in him, but he'd never quite worked up the courage to ask. Their stations in life were just too different.

Sighing, Victor glanced up at the monitors in front of him, practiced eyes glancing quickly over the camera feeds. The first lab was completely empty, as usual. The second was a huge room that contained nothing but a broom and some dustpans; not for the first time, he wondered why it was even there. The third was empty-

Victor frowned. Something was wrong.

It was empty, but the chair had clattered to the floor at some point during the night; strange, green slime had splattered on the wall and pooled on the floor, some leaking off the edge of a table.

If that had been all, the guard might not have been too worried. Frank was known for his eccentricities, and it wasn't the first time that the man had caused an unfortunate accident in his lab. The scratches that had been clawed into the metallic floor, however, told him otherwise.

Victor glanced back up at the rest of the screens, reviewing them quickly. He couldn't find anything moving in any of them, but that didn't mean anything; the laboratory had a number of blind spots in the corridors, partly because it was impractical to cover every inch of the facility with cameras. The security guard suspected it was also to save on their budget, considering the absurdly high-quality cameras they used, but they would never admit to such a thing.

More importantly, some of the corridors had that same strange green slime trailing along the floor. He had no idea what it was, but considering he'd seen the same thing in Frank's lab... Hopefully the scientist wasn't hurt. Taking a breath, Victor stepped outside of the guard room cautiously, starting a stealthy path towards the corridor the trail of slime had ended in.

Back in the corridors, Conquest paused, sniffing at the air with a nonexistent nose. The skin above his mouth scrunched up as he did so. The hybrid let out a satisfied growl when he detected the scent he was looking for - he'd successfully lured Victor out of his room, it seemed. The guard room was especially secure, something Frank had known from his many conversations with Victor, so Conquest had chosen to hide in wait instead.

A Hunter was patient, after all. Conquest might no longer care about the goals of his species, but there were certain things he remembered.

A predatory smirk stretched out across the symbiote's face as he began to make his way down the corridor. His cock quickly stiffened as he thought of how Victor would look beneath him. His face would be covered in Conquest's cum, he decided; he would be moaning, _begging_for more from the symbiote. As the monster's seed touched his skin, he would begin to change, the fluid converting the man's cells into the same ones the symbiote itself was composed of...

It would give him a pet of his own. Conquest shuddered at the thought. Without even realising it, the monster's thick hand wrapped around his aching shaft, and he gave it a few slow strokes. The symbiote's enhancements meant that he could go on for hours without getting tired, could cum endlessly without suffering any side effects - and he was making damn good use of that.

Small rivulets of green slime ran down the monstrous creature's cock and fingers. Every so often, his tongue would dart out - but rather than cleaning the slime he left behind, he ran his tongue along his chest, shuddering at the feel of the slick muscle teasing his body. He'd been doing this often as he walked. It was how Conquest had left that trail of slime and cum in the corridor. Perhaps Frank might have found it strange, once upon a time - but now he was just marking his territory.

The thud of thick feet echoed through the passage as the symbiote hybrid slowly made his way along the corridor. Conquest didn't bother rushing. He could pick up on the vibrations Victor left as he walked, knew that the security guard had heard him. The man was being cautious now, stepping carefully... but he had no idea what was waiting for him. Conquest's tongue rolled out of his mouth, soft, heated breaths escaping the monster as he tried to control his anticipation.

Then Victor stepped into view.

The guard's eyes widened with horror at first, his human instincts warring within him. Fight or flight - but he was caught in the middle, could decide on neither, and so he just stood there nervously. Conquest watched in silence, not even bothering to move. Instead, his lips curled into a wicked grin, his hand continuing to stroke languidly at his erect, aching shaft. The slime dripped from his cock and formed into a small puddle on the ground, and a lingering, heavy musk filled the air.

Victor's muscles tightened underneath his clothing as he gulped. He had no idea what was going on - but it wasn't the first time the laboratory had strange things happen. Nothing as strange as this, admittedly...

The guard tried to ignore the heady smell in the room, the way the monstrous creature in front of him seemed to stare directly into his eyes while stroking his cock. There was an odd warmth rising within him, and it took effort to keep his eyes centered on the hybrid's own. Every so often, he would glance down and abruptly wrench his eyes away from the monster's junk, a deep blush on his face.

It would be best not to be too rash. This was far beyond anything Victor had experienced, but perhaps there was an explanation for it.

"Who are you?" The guard kept his fingers near his gun, ready to pull it from its holster if need be. Something in him doubted that a gun would be of any use against the monstrous creature, but it made him feel safer.

"Who are we?" The monster gave him a twisted smile, slowly approaching him. Victor didn't even realise he was backing away until he felt his back against the cool metal of the wall, and he glanced up at the symbiote in a mixture of fear and determination. "We are Conquest..."

Victor wasn't sure why, but his body shuddered at the way the creature in front of him whispered the last word, reacted in a way he felt was entirely inappropriate to the situation. He felt a heat rise up in him. There was a sensuality to the way Conquest had said his name, a whispered breath that held so many promises... Victor gulped, then glanced down, looking away from the monster's face.

The guard's eyes widened. He hadn't realised it immediately; he'd been too distracted by Conquest's smell, by the musk that had swept over him as the monster approached. The words had sent his head spinning, and Victor had barely been able to think. He didn't notice that the monster had close enough that the tip of Conquest's enormous shaft was pressing against his chest, the green slime oozing through his uniform.

With a gasp, Victor tried to jerk back - but he was against the wall, and there was nothing he could do. He tried to slip out of Conquest's grasp, but the symbiote slammed thick arms into the wall next to him, denting the metal. Escape was not an option. Yet something about the situation was oddly pleasing to him, being trapped by a specimen so clearly his superior. He noticed, for the first time, the bulging muscles that wrapped Conquest's monstrous form, admiring the pattern of white that decorated his skin...

No! He was getting distracted. "W... what do you want?" He was still trying not to look the monster in the eye, nor could he glance down at the throbbing shaft that slowly dripped precum onto his uniform. Victor turned to the side, trying to hide his blush and growing arousal, not quite noticing that some of the green slime was oozing into his skin rather than staining his shirt.

Conquest seemed amused. He brought a powerful arm up to the guard's face, caressing his cheek almost tenderly before his fingers slipped down and his claws ripped through the fabric of his uniform. It didn't tear through entirely; rather, it left a gaping slash in the cloth through which Victor's skin clearly showed. "What do you think?" The words were hissed, heated breath brushing past his ear.

Victor grimaced away from the claw. He was surprised that he wasn't cut, that he had somehow managed to avoid being at all hurt in that exchange. "Ah... my body?" The answer was hesitant, but the monster's leaking cock throbbed insistently on his chest, telling him he had the right answer.

Conquest laughed, a low, rumbling chuckle. "And so much more," he whispered. He stepped back, giving the guard a lewd grin, his tongue dipping out of his mouth and slowly coiling around his shaft. He brought it back up in a slow, hypnotic movement, the coil of his tongue slowly trailing back up his member. Victor couldn't take his eyes off the monster; he knew this was his chance to escape, but...

"Is this... real?" Victor's words were hesitant, but he had stepped forward as though entranced by the monster's cock. He brought his hands over to the thick shaft. Even the both of them together were barely enough to wrap around the tremendous thickness of the monstrous erection. The guard didn't seem to notice or care about the green slime that quickly coated his fingers, nor the warmth that seemed to spread through his hands. It was warm, almost hot - and it throbbed with eagerness with every little touch.

"You love it, don't you?" Conquest was full of himself, but then the symbiote had every reason to be with how quickly the guard had come around to him. Victor might not have noticed it, but there was a faint green tinge in his eyes, now - one that was only visible to Conquest's enhanced senses. "There's a part of you that wants it so, so badly..."

"Yeah..." Victor didn't seem to realise he had responded, he was so focused on the throbbing erection in front of him. Slowly, he leaned in, taking a deep breath. He moaned softly, the erotic smell going straight through his body; his senses screamed at him for more, insisted that he needed it, that this monster's shaft was all that was right with the world.

The guards hands slowly slip over the cock, the human bringing himself so close he was practically hugging Conquest's shaft to his body. With a grunt, the symbiote lowered himself to his knees to give Victor better access.

Perhaps if he hadn't done so, Victor might have had the chance to come to his senses.

As it was, the guard quickly hugged it close, not caring about the way the goo completely stained what was left of his uniform. Victor pressed his face into Conquest's glans, his hands wandering up and down the shaft, the precum acting as lube to make every movement feel amazing to the symbiote.

The part of Conquest that was Frank remembered when he was a scientist that had crushed on Victor. Never in a million years would he have expected Victor to be clinging on to his cock, the security guard lapping away at his precum like it was the only thing that mattered in the world, stroking him off like his life depended on it.

It was hot, knowing that he had so utterly subdued the man with nothing but his cock. Conquest gave an experimental thrust of his hips, and Victor only moaned softly, utterly enamored with the monstrous length in his hands. The man's cock was straining against his pants, a wet spot on the front from where his pre was leaking; his face was slippery with slime... Even his hair was slick with Conquest's cum, and Victor didn't seem to care. A low growl escaped from Conquest.

This man was his.

The utter submissiveness was an incredible turn on, surprising even to Conquest - so much so that it took little to no extra stimulation before he came. The symbiote thrust his hips forward with a roar, Victor letting out a gasp as the throbbing shaft jerked against his face; all at once, warm, green cum spurted out at him. The guard groaned and swallowed eagerly, as much as he could, but it was far too much for him. It got onto his hair, stained his uniform, leaked into his pants...

In a quick, desperate move, Victor tore open his pants as quickly as he could. His cock jerked out, human and unchanged - but he didn't need to do any more than touch it before he came hard, the strongest orgasm he had ever had in his life. The amount was miniscule compared to Conquest's cum, but that wasn't important; what was important was the fact that he remained hard and horny in spite of his orgasm.

Victor panted, collapsing onto the now-warm metal floor of the lab. Conquest was still cumming, a hiss leaving his throat as spurt after spurt of slime landed on the human. Victor didn't complain. Instead, he grabbed on to his cock and began to stroke; slowly at first, unsure if his master would allow it of him, then faster and more eager as the addictive seed began its work on him.

His eyes were closed, the guard lost in a frenzy of pleasure. His clothes began to dissolve around him in the slimy cum, but all that did was expose more of his skin to the very substance that had so thoroughly turned him on. Victor squirmed, trying to get as much of the liquid on his body as possible.

Alas, it was not to be. Pleasure radiated from the security guard's cock, steadily increasing, yet never quite hitting the point where he would orgasm. His threshold seemed to be raising higher and higher, constantly just out of his reach, to the point where it was almost painful - but he couldn't stop, it just felt so good...

His hand wasn't tiring. The slime puddle around Victor had begun to move, rippling. It climbed towards the source of his pleasure, the source of heat - and began to coat his still-aching cock, his arm, feeding them oxygen and preventing the buildup of lactic acid. Victor was lost in nothing but pleasure, in the warmth of the cum he was surrounded by.

As the liquid seed gathered around his cock, it began to spread; each stroke pulsed it out a little further along his body. It wrapped around Victor in what almost seemed like a protective cocoon, if one that was perfectly form-fitting - and as it tightened around his fingers and solidified, it became a suit much like Conquest's, its color turning into a dark green.

Victor didn't stop. He had noticed the changes, but it turned him on. He was being given a gift, he knew, a chance to be just like his master - and he welcomed the changes. The security guard spread his legs, letting out a soft moan as the slime quickly spread into his ass, massaging his prostate as it began to alter the internals of his body. His cock jerked, and this time the precum that came out was tinged a faint green.

That, of course, was the least of his changes. Victor panted, trying to get up his feet, his hands never letting go of his cock - but his legs wobbled, too weakened by pleasure. Instead, he leaned back against the wall as the slime spread up his neck, slowly thickening, giving him the same defined musculature as his master. The same kind he had always longed to have... As it spread, it solidified, turning from a gooey mess into something far more similar to the symbiote Conquest had originally been - a slime that crawled and spread almost as if it was intelligent.

His arms began to slowly grow, his biceps and triceps gaining mass, and Victor grunted as he used his newfound strength to squeeze tight around his cock. His chest broadened and his spine stretched, giving him a frame that could match that of his master's in size.. As the semi-liquid ooze coated his head, it gave it a new shape entirely - a tapered chin with no mouth at all, with faintly glowing white eyes.

Atop his head, two little bulges appeared before lengthening, becoming antennae that waved faintly about in the air.

Victor's legs grew next, the muscles thickening and strengthening as he flexed. It looked rather like he was shaking out the transformation; as he shook his feet, the ripple of ooze spread further down and the changes sped up. As it wrapped around the ends of his feet, they thickened, and with a final surge the suit squeezed hard around his cock, pulling and stretching it, massaging it into a length to fit his new height..

That perhaps would have been the end of it if not for the thoughts that ran through Victor's mind. He needed a way to show that he belonged to his master, that he was Conquest's pet, to be used whenever the symbiote desired.

In response to the security guard's thoughts, the suit bulged briefly around his neck and manifested into a collar. Conquest's name was etched into it. There was no distinct pattern on the new monster's body, just a dark, uniform green; it meant, after all, that he had no new identity save for his role as the symbiote's pet...

Conquest seemed surprise at the last addition - but he smirked, picking up the leash that had manifested and giving it a tug. "Looks like you got into this even more than I thought you would," the monster said with a chuckle. A large, clawed finger reached down to slowly trace the underside of Victor's new cock, and the surface of the guard's body _rippled_in response. Without a mouth, his moan reverberated throughout his entire body, and he had to work to avoid collapsing into Conquest's arms.

The symbiote couldn't have loved this turn of events more. He pulled back, then carefully laid his body back down on the ground, showing off his uniquely defined musculature and the hard, throbbing cock at the center of it all. He ran a casual hand up and down his shaft as it began once again leaking precum. This time, he was careful to spread it all along his length as a lube.

"Why don't you show your master how much you want him, hm?" Conquest chuckled, his eyes closely following Victor's movements. He knew the guard would succumb to his request, but it surprised even him how quickly and eagerly he moved; the other monster didn't even hesitate before crawling forward, his antennae waving about in the air. Conquest's cock rubbed against the monster's slick, tight ass - and though the symbiote groaned at the contact, it was Victor that shuddered with pleasure, his entire body almost going slack.

He jerked himself backwards in a quick, harsh movement, quickly thrusting Conquest's huge cock into his passage. If he felt any discomfort from the action, Victor didn't show it in the least; instead, his back arched and his eyes seemed to glaze over. Loud, panting breaths escaped from the newly formed creature from no clear orifice. Looking carefully, in fact, it almost seemed as though a faint steam was rising from his skin...

"M-master..." There was a strange echo to Victor's voice, but it was still very recognisable; there was no mistaking the man beneath the suit. "T-thank you..."

The creature jerked up and down, his cock bobbing with his own momentum. Specks of green slime flicked up into the air and landed on Conquest, quickly absorbed into the symbiote - who grinned at Victor in turn. "Oh, don't thank me yet."

There was a peculiar, seductive quality to the monster's tone...

Victor's eyes widened in shock. His entire formed seemed to waver for a moment, almost melting before it resolidified - and when it did, the monster was panting heavily, his fingers tearing easily through the metal of the floor and gripping tightly on to what purchase he had.

Conquest's tongue had snuck out and wrapped itself around the base of Victor's cock, and the newly formed monster simply had no idea what to do with this newfound pleasure, nor with the idea that his master was personally pleasing him. He was at once flattered and uncertain, not knowing what he had done to deserve such an honor. "A-ah...! Master, I... Oh, god, please..."

His hips jerked up against Conquest's tongue. Victor squirmed, the symbiote's cock still buried as deep in him as could be; every small movement caused a shock of pleasure in him from both his shaft and the prostate in his ass. He loved how stretched he felt, how filled, and he didn't want it to end. "P-please... don't stop..."

"Wasn't planning on it." Conquest's response came out as an amused hiss, his tongue abruptly tightening around Victor's member, his hips suddenly jerking hard into the monster. Victor gasped, shuddered, couldn't control the intensity of his reaction -

He came.

Arcs of glorious, green cum burst out of his shaft as he panted and squirmed, first landing on the wall far behind the pair, then landing closer and closer until eventually it was spurting directly into Conquest's waiting mouth. The symbiote smirked as he savored the taste - but it wasn't over for Victor. No, he might have experienced his satisfaction, but...

Conquest hadn't had his just yet.

In a swift, decisive move, the symbiote's incredible strength was brought to bear against Victor. The monster was lifted bodily up, the moaning mess that he was, and slammed into the metal wall with a dull thunk. All at once, Conquest began fucking roughly into him, jamming his cock in and out of the monster's loosened passage - all to a plethora of moans and begs that he not stop. Victor hadn't stopped cumming; small dribbles of fluid kept leaking out of his cock as Conquest thrust into him.

A minute of this later, however, Conquest tensed and roared. Symbiote cum rushed into the waiting monster, who groaned in delight at the warmth that filled his insides - and as Conquest came, his body seemed to react, absorbing the cum into his mass. Ever so slightly, his muscles and height grew...

But that was the extent of it, at least for now. Conquest released the monster abruptly, leaving him to collapse panting onto the ground, still basking in the afterglow of his orgasm. For his part, Conquest's cock continued to leak in a small drizzle onto the floor - but his expression was oddly gentler now. He sat and stared at Victor for a moment, a wry smirk on his face.

Once Victor had gathered himself, he stared up at his master. Had anyone told him this would happen to him on his shift, he wouldn't have believed them - but now things were different. Very different, in fact; in the moment Conquest had reached his climax, a certain connection between the two had been established. An understanding.

"...Frank?" Victor wasn't sure if he believed the words that came into his mind.

Conquest snorted, but there was a faint grin on the monster's face. "Conquest. But... yes. We are - I am also Frank."

"I always had a crush on you..." Victor's words were muttered, as though he was still processing what he'd just gone through, what he'd just learned.

"I did too," Frank, inside of Conquest, spoke. "But heh, I partnered with Conquest here and we learned a few things about what you liked..." As the former scientist spoke, the symbiote on his fingers wiggled happily, as though glad that it was being acknowledged - though it just as quickly went back to languidly stroking the scientist's cock.

"You gave it to me, huh?" Victor would have given Conquest a crooked smile if he'd still had a mouth; instead, his antennae waved happily about in the air. "Figures it'd take an extraterrestrial warrior to get us together."

"We are a little more than that now," Conquest responded with a deep chuckle. He rose to his feet; his head was much clearer now that Frank's desires and that of the symbiote's had been momentarily satisfied, and though he was Victor's master, the man's personality remained intact - with just a few changes as to his priorities.

"I suppose you are," Victor said speculatively. Impulsively, he reached out and grabbed Conquest's hand, squeezing it gently - and though the symbiote looked at him in surprise, he did not protest.

---

A/N: And there you have it, my first two-parter! It was quite the experience to write, and I hope to do more in the future. If you're wondering what happened to them, well: Though Frank had been very changed, he was still, at his heart, Frank - and he'd befriended Conquest, though the means were unconventional. The symbiotic organism that had bonded with him gave him plenty of ideas on how to take his field forward, and so it became that one of the most famous scientists in the world was a large, monstrous creature with a reputation for refusing to wear clothes and bringing along a certain green monster with a collar. (They're not bad guys, just very kinky!)

And all was right with the world.

Well, mostly. Frank and Victor still had a lot of sex, and sometimes that delayed their work a little. But it was all in the name of productivity!