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Four Alarm Muscle

By Danath

http://www.danath.com

Timewarp/Andrew and Jason are © Darwen

http://darwentheorca.sofurry.com/

http://www.furaffinity.net/user/darwentheorca

* * *

Jason hung on to the side of the bright yellow fire engine as it roared down the street. The smoke from the burning chemical plant spread across the sky, dimming the otherwise bright, clear blue sky. His heat-resistant fire-fighting suit felt stifling and heavy, but he was used to it.

He jumped off the truck before it had even stopped and ran as fast as he could towards the flames, cherry-red axe in both hands in front of him.

Three other engines were already at the fire. Jets of water flew at the building, but did little to stop the roaring flames. Jason's fur stood on end. This was a bad one.

A few of his fellow firefighters pointed. Two people leaned out of an open window on the top story of the plant. Smoke poured out around them. The floor beneath exploded outwards, sending up clouds of thick black smoke, and the two people vanished back into the window.

The window was too high to reach with ladders. Without thinking, Jason ran towards the building.

A voice buzzed in his ear.

"Jason! Get your ass back here! You can't go in!"

The Dalmatian ignored the voice of his chief and broke through the doors on the first floor of the plant. He switched on his oxygen tank as he sprinted through swirling embers and smoke towards a set of ladders in the corner.

The plant was a large and open. Huge metal tubs held a variety of chemical cocktails. Massive tanks lined the back wall, some reaching more than forty feet high and twenty feet across. One had ruptured, spilling some thick green substance across the cement. It burned merrily, sparking and hissing, but fortunately far away from the Dalmatian.

Jason climbed the stairs two at a time. The building had offices on the upper floors. By the time he humped his way up to the top, he was exhausted. His axe felt heavy and his paws could hardly hold onto it. He checked his oxygen - half full. Shit.

Trying to regulate his breathing, Jason ran down the hallway towards the first door. At the far end, the elevator shaft sat, door open. There was no car - it went to the bottom as soon as the fire broke out.

Jason kicked in the door to the office.

"Hello! Can you hear me?"

The canine flinched as part of the ceiling dropped on top of the reception desk, crushing the rolling office chair sitting behind it. He ran through to the back window where he saw the people earlier as the flames heated his boots.

"Hello!"

"Here! Here!"

The feeble shouts were followed by wracking coughs. Jason followed the sounds to a conference room, where he found a short vixen in a pencil skirt and a fat raccoon in a suit huddling under the heavy conference room desk. The room was one of the only ones not completely on fire - Jason looked through the glass walls and saw the office where they'd been standing earlier had given way, falling through to the story below.

That meant this room would be collapsing next. Double shit.

"C'mon! Take my hand!"

He reached down to the two people. The raccoon shoved the vixen forward before crawling out himself. He handed the fox a spare breathing mask attached to his dwindling oxygen supply.

"Follow me!" he barked.

He rushed towards the door, but noticed at the last second the telltale signs of a flashback forming in the next office over. The door was closed, the glass was bulging, and-

The explosion knocked him backwards, dazing him. The entire wall of the room blew out, sending shards of glass flying. He fell into the raccoon heavily and landed awkwardly on his ankle.

The vixen screamed. The raccoon went limp. Jason realized his oxygen tank had broken the male's nose and knocked him unconscious.

Triple shit.

"Go! Go!" he screamed at the vixen, urging her down the hallway as he leaned down, grabbed the bulky raccoon's arm and leg, and somehow managed to get him over his shoulders.

The canine staggered under the male's weight, but adrenaline pumped through him, keeping him going. He jogged as quickly as he could into the hallway, where the vixen was waiting past the blown-out office, near the stairs.

"Run!"

He fell to his knees, the weight of the raccoon too much, as the vixen let out a shriek. Another fireball exploded from the factory floor, knocking her back from the railing.

She screamed again when the wall of the building suddenly crumbled. Fresh air rushed down the hallway, but it only fueled the raging fire in the offices behind them.

But then someone appeared in the hole. A familiar black mask on a very familiar gray head.

"Timewarp!" the vixen shouted, crawling towards him.

The malamute jumped forward, landing heavily on the floor. He looked around quickly, seeing the fox, the raccoon... and a very familiar Dalmatian.

"Jason?"

The incredulous question had barely left his lips before the ceiling buckled above the Dalmatian. In the blink of an eye, Timewarp dove forward, scooping up the raccoon. His leg swung out, kicking Jason backwards. The Dalmatian grunted as he felt his oxygen tank dent from the force of the kick. He skidded backwards, deeper into the building, and slammed against a wall. The space where he'd been a moment before turned into a raging wall of fire.

Through the flames, he saw Timewarp grab the vixen and leap from the hole in the wall. Lurching to his feet, he lifted his arms, covering his face as he was forced to retreat deeper into the building, down another hallway, trying desperately to outrun the inferno. Doors exploded off their hinges to either side of him as he heard bass booms from below. The tanks were superheating, expanding the liquids and gasses inside.

Strong arms suddenly grabbed Jason from behind. He looked back and saw Timewarp's face grinning at him. Held in the superhero's grasp, the Dalmatian gasped as he was lifted upwards. The malamute's fist broke through the ceiling as they kept going higher and away from the fire.

They almost made it. Three massive fireballs ripped through the building, engulfing them as they spread through the air. Timewarp lifted his cape, wrapping it around them both, but he couldn't stop the raining droplets of liquid from soaking into their clothing.

Putting on a burst of speed, Timewarp accelerated them away from the fire, now past its peak. It would burn out, given time, and the crews fighting it could stop it from spreading, Jason knew.

He clutched at Timewarp's arm as the grim malamute flew them over the city, blasting through the sky, until Jason saw their apartment building come into view.

They landed heavily on the roof and Timewarp set him down.

The malamute ripped off his mask and growled at the Dalmatian, eyes narrowing with anger.

"Jason! Are you completely insane?" he shouted.

The other canine pulled off his helmet and unhooked his oxygen tank, letting the dented bottle fall to the roof. He stared back at the slightly taller malamute.

"Those people needed help, Andrew."

"You almost died, you idiot!"

"But I didn't."

"But you could have! What if I hadn't been there in time?"

Jason shook his head, sudden relief flooding him. He fell backwards, onto his rump, as the extended high from the adrenaline wore off.

"I can't get my gloves off," he complained, awkwardly pulling at his hands.

"Christ, Jason," the malamute said, kneeling down in front of him. He helped the Dalmatian pull off the gloves and his large, fireproof jacket, leaving the Dalmatian in his heavy trousers, navy blue polo, and pants. The polo had the fire engine company's logo on it.

"That was a close call. You have to be more careful," Andrew said, lowering his voice. He reached out, touching his green-gloved hand to Jason's cheek.

He pulled his hand back when he realized his fingers left streaks of green in the Dalmatian's white and black fur. He rubbed his thumb and index finger together and sniffed.

"What is this stuff?" he asked. "I don't recognize the smell of it."

Jason shivered. He stretched back, gasping for breath, as a moment later his backside cracked. He lay against the cement roof, moaning, and Andrew leaned over him. The superhero grabbed his shoulders.

"Jason! Jason, what is it?"

The superhero felt what it was a moment later. He let out a gasp and slumped back as something stretched along his backside. His spine burned as he looked at his hands. His gloves fit tight around his fingers and, as he watched, his short claws poked through the ends.

Jason rolled onto his side, breathing better now. He tried to sit up and failed. The Dalmatian kicked his legs, trying to loosen his suddenly constrictive fireproof leggings. It didn't help - his clothes fit all the tighter as the seconds ticked by.

"And... Andrew," he gasped, reaching for his husband.

The malamute grasped his paw and squeezed it tightly, even as fibers of dark gray fur pushed through the stretching seams of the green fabric. His costume, which normally fit him comfortably, stretched across his chest more tightly than usual. His pecs were clearly outlined, nipples and all, and the neckband tightened, stretching around his shoulders.

Timewarp grunted as his hips cracked and shifted. Between his legs, his sheath pushed out against the bikini-style shorts he wore. His bare thighs thickened; the white fur covering the front half of his legs stood on end as both thighs swelled and pulsed.

Jason rolled onto his back as he experienced similar growth. The shorter canine's suspender straps clung to his shoulders as his neck broadened. His polo shirt tore at the shoulders as his biceps flexed of their own accord, pulling his arms up. The Dalmatian grunted again and struggled into a sitting position.

"The... the chemicals," Timewarp gasped, getting to his feet. "We've got to... got to..."

The superhero let out a howl as his chest split through the front of his costume. Massive pecs flexed as the fabric shredded, falling away to his waist. His abdominals bulged outwards, flexing and growing. The ridges between each was incredibly deep, perfectly outlined by his white chest and stomach fur.

Jason let out a moan of pleasure as his boots split around his feet. Large toes poked out from between the steel and sole as the canine's legs grew thicker and larger by the moment. His size thirteen shoes were much too small to contain his size seventeen feet. The Dalmatian's hands reached up, ripping away the remnants of his navy blue polo, leaving only the red suspender straps to hug against his beefy pectorals. His shoulders thickened as his arms kept growing, matching Timewarp's astonishing musculature.

The malamute's dark gray arms flexed. His gloves ripped at the same time as he curled his fingers into fists. The fabric split up the sides of his arms, and when he released the fists, the tattered remains fluttered to the ground at his feet.

He stared in shock at his larger paws and swelling arms, then down at his slab-like belly. His belt snapped and he grunted as the remaining fabric around his hips stretched more and more tightly, squeezing his sheath and balls tightly. The belt buckle, with Timewarp's hourglass logo, flopped to the side as he stared down at himself, unable to believe what he was seeing.

Jason grunted as his swelling, thickening thighs stretched his fireproof trousers. Soon the tight stitches pulled apart and, with a bark, the black and white canine burst right through them. He leaned back, still sitting on his rump, and stared at the powerful new muscles growing on his legs. His hips felt constricted and he undid the belt around the trousers, sighing with relief when the growth could continue unimpeded.

For the first time, he thought to look at his husband. His tongue fell out of his muzzle as he saw what the malamute was becoming. Scraps of green clung to Timewarp's ankles and hips. The only unaffected part of his costume was his cape, which fluttered behind him. It looked so much smaller now because, Jason realized, the gray and white malamute was nearly a foot taller than he used to be.

As Jason watched, Timewarp leaned back, flexing his entire body. His bulging biceps curled into tight balls of powerful fibers and his hamstrings pushed out against his pelt. Between his thighs, the bulge in his green shorts expanded outwards, until there was simply no more room for the canine's junk. The fabric ripped in half, like all the rest of his clothing, and a meaty, flaccid sheath and gray-furred nuts fell out, jostling for space between a pair of massive thighs.

Jason moaned at the sight and shuddered as he felt his sheath stir. It took only moments for him to achieve the hardest erection he could remember having. It pushed over the scraps of his tan trousers, raging and throbbing above a set of fist-sized black and white nuts. His knot swelled rapidly and he groaned with need.

Timewarp looked at Jason and experienced much the same reaction. He tore at what was left of his clothing, ripping the shreds from his thick pelt. He had to use his claws to rip off his cape, which stretched too tightly around his neck.

The malamute's sides swelled with muscle. Every single time he moved, his pelt rippled over the bulges and strings of power growing under his skin. He groaned deeply when his thick shaft pushed free of his sheath, soon throbbing and hanging out from his hips.

Their bodies continued to grow, but much of the growth focused on their genitals now. Jason let out a happy moan and gripped his shaft with both paws, squeezing the huge, light red tool. He panted as he teased his knot and flexed again, enjoying the way his skin went tight over his massive chest and deep-cut six-pack.

Timewarp growled deeply, urgently, and dropped to his knees in front of Jason. The Dalmatian reached for him and they pressed together, grinding their massive new chests into each other.

"The chemicals... made us... grow," Timewarp gasped, even as his muzzle sought out Jason's.

"It feels... feels so good!"

Jason moaned as they kissed. Andrew pushed him onto his back, shoved his tongue into the spotted canine's muzzle, and reached down to his length, squeezing it in his powerful fingers. Jason bucked into his paw; within a few moments, he'd grown even bigger, so that Andrew could no longer fit his grip around the length and still get his fingers to touch.

Jason spread his legs as his calves bulged, further shredding the bits of his pants left around his ankles. Andrew, still leaning his chest down heavily on top of the Dalmatian, switched hands, so that he could use his right paw to reach between Jason's legs. The Dalmatian tipped his muzzle back and growled with lust as thick fingers pressed between his furry cheeks. His cock throbbed and spat a few bursts of pre-cum into his belly fur. Already it was far larger than his original eight inches, closer to a foot and a half now, and twice as thick. Timewarp was growing even bigger, from ten inches long and two thick to over eighteen inches long and five thick.

The two canines ground their hips together as Andrew worked his fingers deeper, getting two of them into the Dalmatian's tight hole. Jason moaned and squirmed as his cock spit a few more globs of sticky pre. He wrapped a paw around the back of Andrew's head and pulled him down for another deep kiss.

The growing muscledogs grunted, growled, and woofed at each other, tails wagging furiously. Andrew's aching cock demanded attention; he rolled Jason over and straddled his huge thighs. The Dalmatian's tail thwapped into his chest and belly. Jason pushed his hips up, getting onto his knees and elbows.

"Oh, oh..." he gasped. "I'm still growing..."

His huge shaft bobbed under his belly. The tip reached past his nipples as it thickened considerably. Timewarp's grew just as quickly. He squeezed the nearly eight-inch-thick knot and set the tip under Jason's tail. The Dalmatian shuddered and gasped when the malamute's hips pressed forward, grinding the spurting tip in.

Claws raked down Jason's sides as the malamute pawed at his muscular new body. The big canine's cock sunk in deeper, spreading the huge Dalmatian's tight rump easily. Jason tipped his head back and cried out as Andrew got to his feet, knees bent almost to his chest, and grabbed hold of his husband's hips. The leverage worked - soon the malamute was thrusting in and out heavily, taking the slightly smaller black and white canine roughly. Pre squelched out of Jason's rump as his huge balls swung back and forth.

Andrew leaned forward, teeth bared, neck extended. His arms bulged with power as he held onto Jason tightly. He swung his powerful hips, grinding in deeper with every thrust, until his huge knot stopped his progress. Jason whined uncontrollably as the thick shaft twitched deep in his gut. He couldn't even tell how big his husband was at this point, but he didn't care. The shaft stretched him out so good, he felt as though he could cum right then and there.

And he did. With a howl, the Dalmatian's cock exploded with a gush of cum. It hit the cement floor of the rooftop and quickly formed a growing puddle. He clenched and squeezed around the malamute's shaft as his arms trembled. His pecs squeezed together as paws grabbed his shoulders, pulling him upright into a kneeling position. His spurting cock shot thick jets of cum up into the air; they landed with wet splashes almost twenty feet away. One or two went right over the edge of the roof.

Timewarp ground upwards as his arms flexed again. He pulled Jason down, stretching the canine's tail hole even wider, forcing his huge knot into the tight, muscular rump. The ball of flesh throbbed angrily, hard as steel, as the big canine shoved forward, rougher and harder.

"Too... too big... too..."

Andrew ignored Jason's pleas and let out a tight growl of desire. He wrapped his arms around Jason's chest, squeezing the Dalmatian's arms to his sides, and surged forward. The Dalmatian's cock erupted anew as the massive knot plugged his rump. Andrew's hot, heavy pants filled Jason's ears as the malamute came, no longer needing to hold back. Thick loads of hot muscledog cum filled Jason's belly. He sat down heavily, clenching and moaning, feeling every twitch of the massive tool filling his insides.

The two canines panted and moaned as Andrew clutched his lover, resting his chin on Jason's shoulder. Their bodies flexed, showing off their massive new physiques. The growth slowed, eventually stopped, but it took almost an hour from start to finish. The majority of that time was spent with Andrew locked into Jason's right rump.

"Andrew... we... we got... huge," the Dalmatian gasped, leaning back into the malamute.

"Unngggh... we did," the big canine gasped, squeezing Jason's body even more tightly with his huge arms. "Rrrrrhhh..."

Andrew licked at Jason's floppy black and white ears, shivering every time the canine's hips jostled his thickness. His knot still hadn't gone down even by a bit and his erection felt incredibly hard and stiff. The Dalmatian's body rippled around it, squeezing and massaging.

"Mmmffff... I'm gonna cum again!" Andrew gasped, leaning forward.

"Oh, yesssss!"

Though their cries of pleasure couldn't be heard from the street below with all the noise and traffic of a busy city, more than one driver found their windshields suddenly drenched in a deluge of sticky, warm fluid. The Dalmatian's massive new cock easily pumped out jets of hot muscledog seed more than twenty feet a spurt, giving the unsuspecting drivers below a sudden shower drive through.

Andrew smiled and leaned into his husband.

"Do you think... that it's permanent?" he gasped.

Jason's hips shifted as he clenched uncontrollably around the huge knot stuffed up his tight rump. Every single breath sent shocks of pleasure from the root of his shaft to the dripping tip.

"I sure hope so!"

The End