Population Control 7 - Opening Borders

Story by Serathin on SoFurry

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#7 of Population Control

The population control series comes to a head as Sully and Manuel trudge forward alone, will they be able to stop the PCI system or will they too succumb to the city life?


"Are you sure that we can't wait for the others just a little longer?" Sully asked as Manuel led them up the stairwell of the massive tower. "They could have just fallen a bit behind."

"We don't have time for this!" Manuel shouted back. "Your stupid friends have alerted this whole city to our presence, even with the protections that we have with our sexuality the PCI core is still going to try and protect itself! If we get caught then everything we did today will be for nothing!"

Sully just continued to run up the stairs wordlessly, though by the time they were midway up the tower it was because he panted heavily. Sweat dripped down his body as he began to wonder if the journey up would ever end, with no windows and no other doors it was hard to tell exactly how high up they had gone. Manuel was relentless though and Sully continued to follow him even though his lungs burned and the muscles in his legs begged him to stop. The young man had no idea how much had passed until they reached a steel door, Manuel instructing him to go on the other side and help him pry them apart.

As soon as they managed to get it open a crack there was a rush of air, the wind whipping around their bodies as it was sucked outside. Once the pressure equalized a bit the doors came open a little easier, and when they finally managed to get them completely open the two slipped inside and allowed the heavy steel to slam shut behind them. Sully's breath caught in his throat as he looked over the edge of the walkway they found themselves on, the buildings far beneath them as he immediately clung to one of the guardrails that lined the edge of the catwalk.

"Just a little bit further!" Manuel said as he began to walk forward. Sully tentatively followed behind as the two humans worked their way to one of the connecting towers. He tried not to look down, but the vertigo of being so high up for the first time made him so overwhelmed that he could hardly stand, much less move. Still he remembered the purpose of the whole endeavor to help his heartbroken sister, and that gave him just enough strength for him to get to the point where the other man had already gotten to.

Once Sully finally got to the spot Manuel had told him to he watched as the other man set down his duffel bag and pulled out the bomb, along with a long length of climber's rope. "What's the rope for?" Sully asked, having to raise his voice over the howl of the wind that whipped passed them.

"The main cooling vent for the PCI core is underneath this platform!" Manuel shouted back as he hooked a carabineer to the guard rail and threaded the rope through it. "You're going to have to go down underneath the platform and attached the bomb to the exhaust vent that is in the middle of the column!"

"Fuck that!" Sully screamed.

"You have to, you're light enough that you can swing over and put the bomb on the vent." Manuel replied as he shoved the explosive device into his hands. "I know it's daunting, but if you want to save your friends and everyone in the city you will have to suck it up and get down there!"

Sully grimaced as he looked over the edge, the streets mere lines in the distance as he considered his options. They had gotten this far, and now with his friends probably converted he had to do it to save everyone he cared about. He couldn't turn back now, and though dangling a couple of dozen stories above the ground was not something he wanted to do he knew it was the only thing. "That's why you needed two, all those years of ranting and raving instead of coming here and doing it yourself."

Manuel did not respond, instead he continued to thread the rope around Sully's waist as though he had already agreed to it. The man looked unhinged, Sully began to wonder that if he didn't agree to it if the older man may push him off the edge himself. Instead he decided to go ahead and slowly climb over the edge once the rope was completely secure, the bomb strapped to his chest to prevent him from dropping it. He took a deep breath and took a moment to steady himself, then jumped over the edge.

His heart leapt up into his chest as he suddenly felt himself suspended in midair, the rope his only lifeline as he hung there in the vast expanse. He tried to normalize his breathing as his quivering hands reached out and slowly began to use the pipes under the platform to move closer to the central column. The vent could clearly be seen in the middle of the column, and even though it was only a few meters away it may as well have been a mile. Slowly but surely he used the piping to make his way further underneath, accompanied only by the howl of the wind and the sound of the rope that scraped against the metal.

After what seemed like an eternity Sully finally made it to the vent, feeling the suction of air against him as he took the bomb out of the straps. As soon as he got it loose enough the device shot forward and adhered to the metal of the grate. Manuel had told him something about the bomb being magnetized, and now that it was tightly in place all Sully had to do was press the green button that he was told too. Almost immediately after he did the timer on front flickered to life, a digital clock displayed twenty minutes before it began to count down.

Suddenly Sully felt a tug on the rope as he started to double back, then a sudden jerk that caused him to lose his grip on the scaffolding. His entire body heaved as he felt himself swing loose from the safety of his assured hold and out into the open air. The breath caught in his throat was the only thing that prevented him from screaming as he hung there in midair, just a few feet away from the lip of the walkway but many, many feet up from the ground below. Just as his life began to flash in front of his eyes he felt himself get pulled up, nearly reaching the edge in one powerful pull.

"Manuel!" Sully shouted as he reached his hand up to grab onto safety. "Thank God you were there, I-" his eyes widened as a hand came down to grab his and help him up, though it definitely was not Manuel's. The paw that grabbed him was huge, covered in brown and black fur that looked shiny and felt rubbery as he was easily yanked back over the guard rail and onto the cold steel of the tower walkway.

"Well well well, look at what we have here." The bulky German Shepard said as he grabbed him by the other arm as well. Behind him Manuel had suffered a similar fate, a slightly smaller but equally intimidating Doberman had the other human pinned against the wall and growled at him. "No one is supposed to be up here, no one except authorized PCI guard personnel, are you an authorized PCI guard personnel?"

"N-no." Sully stammered.

The glossy yellow eyes of the dog guard bored down at him as the huge canine gave him a fanged grin. "Wrong answer." The German Shepard said as he dragged him back towards the door, the Doberman doing the same to Manuel as Sully watched his captor slide a card into a hidden slot. In seconds the metal parted, which revealed an elevator that the two humans were roughly pushed into and then followed. Sully tried to think of a way to escape, but even if he and Manuel worked together there would be no way to overpower the two guards. As the elevator quickly dropped down the tower Manuel continued to rant that they would never corrupt him and that soon they would all understand, and his shouts grew so frantic that the Doberman guard put one of his heavy rubber paws over his mouth in order to shut him up.

When the doors opened once more Sully was amazed to find that the doors opened to a rather lavish row of beds, each one with a foot locker on the end of it and a nametag by each one. Sully was dumbfounded, the only thing he could guess was that they were about to take them into some sort of interrogation room. Both human men were stopped a bit short though and their escorts faced them to a bed. At first Sully was confused until he looked at the nametag and noticed that it was blank. "What are you going to do with us?" He asked his captor.

"As I said, only authorized guard personnel are allowed here." The guard said as he began to remove something from the foot locker. "So I'm just making sure that the rules are followed to the letter. Now strip down, I would hate for you to face harsher consequences for trespassing."

Sully gulped as he heard the low growl in the German Shepard's throat, which prompted him to begin to take off his clothes. Even though he was terrified at the prospect he knew that in about eighteen minutes the bomb would go off and free them all, which meant they only had to distract these two until it did. So he slowly took his clothes off, which he could tell was not lost on the guard as he heard an appreciative murr behind him. As he revealed his semi-lanky frame he suddenly felt himself become very self-conscious, especially with the ripped physique of the creature right behind him.

As soon as the last piece of clothing had been removed Sully let out a gasp as he felt something cool and rubber-like get wrapped around his chest. He looked down to see a chest harness pressed against his skin and the German Shepard made quick work of the straps that went around his thighs and particularly around his groin. There was something about the sensation of the harness around his body that caused him to shudder slightly in pleasure, his flaccid cock twitched slightly as the latex paw brushed against it.

"Not bad at all..." the canine guard whispered in his ear as the last of the buckles were locked. "You're going to make a good new recruit. My name is Nix by the way, I'll be your trainer."

Before Sully could even respond he was twisted around and thrown on the bed, his back pressed against the synthetic covers as the German Shepard crawled up on the bed. The human could see beyond the hovering canine to Manuel, who had suffered a similar fate except he had been thrown on the bed with his ass in the air before the Doberman pounced on top of him. He could see the other guard lick the human's thighs which caused Manuel to let out a very uncharacteristic moan of pleasure right before his vision was blocked by a wall of muscle and rubber fur as Nix crawled on top of him.

"You're going to want to suck a bit on this to make it slick." Nix said with a grin as he sat on Sully's chest and presented his nine-inch, bright red canine rod.

"I don't... want to be a monster." Sully confessed, though the more he stared at the cock and sheath in front of him the more his confidence began to waver.

To the human's surprise the German Shepard began to laugh, then leaned down until they were nearly face to face. "You don't need this to start your conversion." Nix grinned. "It's already begun, I'm just helping you with the... side effects, just like those your friend is experiencing right now."

Sully looked at him in confusion, and Nix merely smirked and pointed his gaze towards the Doberman and Manuel. The latino had been completely stripped down and the rubber canine licked his tongue up and down the man's lean body, which caused the dark haired man to moan out. He was surprised to see that Manuel looked to be enjoying himself so much, as the Doberman's muzzle caressed the human's cock it quickly grew to full hardness.

"It appears that thou doeth protest too much." Nix said with a chuckle as he nibbled on Sully's ear, letting the male watch as Manuel began to change before their eyes. "It's always the ones who shout the most that succumb the quickest. Just like the rest of your group."

It took a second for Sully to realize what Nix was talking about, though it was hard for him to focus with a pair of rubbery paws roaming over his body and watching as the Doberman took Manuel's cock in his mouth and began to suck on it. "No... the rest of my friends are still out there." Sully said, his fingers beginning to thicken as his fingernails began to darken and grow pointed as synthetic fur began to peek out from around the straps. "They could still be okay..."

"Oh, I do love your naivety." Nix said as his muzzle got even closer to his ears, Sully shuddering as he felt his hot breath on his lobe. "You see, as the guardians of the essential systems of the PCI core we have access to its databanks in order to assess any threats that may come for it. That's how we knew that you were on top of the access tower, and that there were only two of you. Now, would you like me to tell you about your friends, or if you prefer you can wait until you have access to it yourself, though I doubt you will be too much in the mindset to care at that point."

Sully bit his lip as his captor licked his ear, which caused him to shudder more in pleasure then revulsion this time as his flesh stretched out into rubbery points. He could feel his body begin to change, just like the rubbery canine behind him said he would, but his transformation was far slower than Manuel's. The other human had bulked up considerably, the straps on Manuel's body now very snug against the thickened muscles of his stretching frame as he lowered his head down and began to suck on the large, red canine member presented to him. Manuel appeared to be severely enjoying himself, his naked butt wagging in the air as Sully watched the changing male's spine extend out into a ropy rubber tail. Sully realized that the one who had led their group and told him that they would be unharmed had completely succumbed to the PCI, his eyes glassy as the lips that were wrapped around the Doberman's thick tool stretched out and began to form into a similar muzzle.

"Alright, tell me." Sully said finally, turning his head away as the Doberman took the hardly human Manuel and pushed him onto his back as his tongue lolled out of his mouth in pure bliss. "I want to know if all my friends turned into... that."

"Very well." Nix said as he wrapped his muscular arms around Sully and pulled him back onto the bed in his lap. Sully could feel the German Shepard's cock pressed against his taint and the tip even rubbed against the underside of his sack as he felt his body shift into a more comfortable position. "There were three of you besides yourself and your friend, the first one... Harold I believe his name was, he was picked up buy a few of the newer citizens of the city before he was ultimately claimed by a rhino named Stud who, I kid you not, owns a piercing studio. Your other two friends Yavi and Simon, well, it appears that you didn't know them as well as you thought because the PCI found out that the two had been attracted to each other for some time and they are now lovers who work as a bartender and an entertainment swimmer at a local aquatic creature nightclub."

Sully's heart sank as he found out that his friends had been turned just like he was about to be, yet another deviant that the city claimed. His only solace was that Manuel's plan would come to fruition and save them all, but the only thing he could do now was to try and weather the storm he was in until it happened. Unfortunately he knew that he was already losing the battle, the synthetic fur around the leather straps continued to spread out as it took on the same coloration as the German Shepard behind him. He could feel his muscles grow and bulk up under his shifting skin, tightening up against him as Nix began to stroke against his body and once more made the growth feel better.

"There we are, you're becoming another fine guard for this city." Nix cooed as he got up and helped Sully to his hands and knees. "Now why don't you continue to watch my friend here while I properly-" his sentence was cut short as Sully mule kicked him in the abs and scrambled off of the bed. As he scrambled off the bed and towards the door he suddenly fell forward, his toes snapping and popping as his feet stretched into a more animalistic configuration.

As he crawled up to run again he suddenly felt a heavy weight press against his back, the rubber German Shepard pounced on him and pushed him to the floor once more. "Ah, you're a wily one!" The guard said with a laugh as Sully felt something get wrapped around his throat. "You got spirit, I like that, and you're going to make a wonderful guard!"

Sully let out a yelp as he was flipped over onto his back, even with his additional muscle the other German Shepard easily overpowered him and pinned him to the floor. "I'm... I..." Sully tried to fight back, but as he looked into the piercing brown eyes of the rubber guard he felt his words disappear and his mind numb slightly. "I'm... sorry..."

"I'm sorry what?" Nix replied, smirking down at him.

"I'm sorry... sir?" Sully replied, his resistance melting away as he felt the powerful male on top of him. The thoughts of escape were fogged over when his eyes looked over Nix's physique, those glistening, hard muscles hovered over his own body that slowly gained a similar shape. Even now as sully looked at his own chest he watched as what little fat he had on his body melted away and his stomach formed into a pristine set of eight-pack abs. A confusing rush of both strength and submissiveness flowed through his body, compounded tenfold as the canine pressed his rubbery lips against his still human ones and slipped a thick tongue inside his mouth.

For what felt like an eternity Sully felt the latex-coated appendage explore the inside of his mouth, licking against his teeth as they sharpened into points. Once their lips finally did part Nix slowly pulled away, though as he did it felt like his own mouth was pushing up to continue it. He looked down to see his nose push out past his vision as the tip darkened into a broad, flat snout. As his tongue slid out to lick it he felt the appendage slide out far past its human lengths and covered in thick rubber.

"Looks like someone is coming around to being a good boy." Nix said as his facial features grew increasingly canine and shiny. As much as Sully wanted to shake his head and protest the words rang true in his mind, his own tongue stretching out slightly as he began to pant despite himself. He felt something press against his neck as he realized with some surprise that during their kiss the larger guard dog had slipped a collar around him, connected to a leash that Nix held in his hands. Sully needed little prompting to stand up through, his new muscles felt good to be stretched out as his thickened bones popped into a more appropriate place.

"How are you feeling dog?" Nix said as he patted Sully on the head, which caused the transforming human to shake his butt despite himself as a lump of flesh began to grow out from the bottom of his spine.

"I'm feeling... good... sir..." Sully replied, and though the answer was at least semi-truthful from the pleasure he was experiencing it felt like his mind had sunk into a fog. "I want to reaarrr... raaar. Wrrraaar?"

Nix laughed as he watched his new recruit stumble over his words, Sully's eyes glassy as the rubber fur on his now completely canine head cascaded down his neck to meet up with the thick coat that had grown from the rubber straps he wore. "Silly dog, trying to talk like one of us." He said as Sully's clawed hands grabbed his head to try and shake off the slowness in his brain. "That privilege is only for recruits that know how to follow orders and have proven themselves to be good and loyal citizens to the city. Do you think that you fall under this category yet?"

Once more Sully tried to speak, but when the words continued to fail to form in his new muzzle he merely shook his head no. Once more he was rewarded for his obedience with a burst of pleasure, and for the first time since he had come into the room his gaze had been drawn down to his cock. The most noticeable was that, like the dominant German Shepard that held his leash, his groin was covered by a large, synthetic sheath. As Nix continued to touch him though the head of the member enclosed within had already begun to peek out, his cock a bright red and tapered to a point as inch after inch slid out of the new pouch.

"Tell you what, how about a little test to see if you're coming around." Nix said with a smile as he turned around, put his hands on the bed and raised his tail in the air. "Why don't you put that new tool you have there and pleasure your superior officer? Think you can handle that recruit?"

Sully let out a bark as he saw the tight rubber hole of the canine guard in front of him, drooling despite himself as he found his body inch closer and closer. A small voice in his mind tried to warn him that this wasn't right, but it was drowned out by the carnal instincts that had been bubbling up in his mind since the rubber invaded his skull. His body urged him forward until he found himself with his hands on Nix's hips, his latex member throbbing with need as his tip pressed against the entrance of Nix's tailhole.

"That's it, you've got it." Nix said as he felt his newest charge growl slightly as the thick appendage was pushed between his furry cheeks. While Sully was still humanoid in stature and form his mind was almost completely feral, his lips curled in a snarl of pleasure as what little rationality he had left was wiped away from the sheer bliss as his canine phallus slid inside the other male. Nix sighed in contentment as he felt the former human give in to his new lot in life, his own tongue hung out of his mouth in joy as he was spread wide open.

Sully panted in happiness as he grew to accept his new instincts and urges, what was left of his humanity fading away with each thrust into the tight, slick tailhole of the German Shepard beneath him. As he hilted his cock and their furry thighs ground against one another he fell onto Nix's back and braced himself against the bed as well, the bones in his legs snapping his legs made one final alteration into a quadrapedial gait that would make being on four legs just as graceful as two as he thrust in and out. His eyes turned a bright amber as he glanced over at the two Dobermans, the one that had previously been Manuel was sprawled out on the bed, whining loudly with his rump in the air as the guard pounded into him.

All Sully could do was whine and moan himself as his thrusting grew more and more intense, a small sense of pride permeating his feral mind that his trainer was letting him mount him. Nix was stroking his own cock as Sully pushed deeper and deeper into him, the two canines howling loudly as Sully stretched out his tailhole even more before a loud explosion caused the mating canines to suddenly bring their heads up in alert. Nix and the Doberman quickly slid out of and leashed their newest pets and slapped them on the rear and got them moving. The two new guard dogs quickly moved through the barracks and up into the city streets. "What on Earth was that?" Nix said as he saw the huge tower in the middle of the city on fire.

"Well while I was fucking my recruit he mentioned something about the PCI core." The Doberman said as he patted the red latex head of the strong, bound male before him, who instantly popped an erection at the praise. "Do you think he had something to do with it?"

"I guess, but the PCI core is located underground." Nix replied as he scratched his head and the head of Sully who also grown an erection. "Which begs the question of what he exploded..."

Suddenly, as though to answer his question, the pale blue of the force field around the city began to flicker. "Nevermind." Nix said as he watched the shield begin to disappear, a small grin forming on his face as the citizens of the city looked out of their windows and from the streets at their sudden potential liberation. "Things are about to get much more interesting. But enough of that, these new recruits deserve a reward, don't you think?"

The Doberman guard nodded with a grin and ordered his dog to assume the position, allowing Nix to command his to get on top and mount him. Nix grinned as the two canines happily began to buck against each other, watching his recruit slide his pointed member right into the other dog's tailhole. As the sounds of rubber on rubber filled the air Nix and the other guard came together and embraced as well, the light of the fire glinting off their muscular forms as they rubbed their bodies and erections against one another. As they did the shield disappeared completely, and theirs wasn't the only public revelry happening as they realized their newfound freedom...