Gerald sighed and leaned back on the park bench. Another Sunday had come and mostly gone without anything eventful. The average built German Shepard stared up at the sky, watching birds fly over head. He always couldn't help but wonder silently how odd it was that feral and perfectly bipedal animals existed side by side. It actually was giving him a bit of an existential crisis every time he walked by the loal pet shop and saw this Shepard pup that no one had bought yet watching him walk by. Snapped from his thoughts by the soft feeling of a bug on his arm the dog looked down.

	On his arm was a mosquito squirming about on his forearm. A sigh escaped his mouth quietly, he knew a few bug guys from work, and smashing the feral variety always made him feel a bit weird, but he didn't want to get an infection. As he raised a hand to bring it down on the insect he noted that the small thing despite not sucking any of his blood yet as far as he could tell, looked rather bloated. Hand at the ready he lined up with the insect, but before  he could move to smash the mosquito on his arm it burst apart by itself. Taken aback for a second it took him nearly a minute to notice the white substance that was distinctly un-blood like that had poured from the remains of the bug.

	His hand moved down and poked at it a bit, a little sticky and seemed to just get tangled up completely in his fur. It reminded him of semen in all honesty, but that made no sense, why would a mosquito be filled with so much jizz that it would explode just from moving around on his arm? The question was moved to the back of his mind in favor of washing his arm off at a near by water fountain. Cold water taking far too long to get the stain out, having to pick and tug at the clumps of the stuff, only making him really think it might be jizz.

	Once he was done cleaning he began to walk home, a bug exploding on him put a bit of a damper on his contemplation of the ramifications owning a miniature and far less smart version of himself. As he walked he began to notice the air felt a bit more  hot, his breath coming a bit harder as the minutes ticked by. Stopping he wiped off his forehead,taking out his phone to check the temperature, surely it couldn't have gotten so hot this suddenly. A cool 65 was what showed up, but he felt like he was standing in 100 degree heat, panting loudly by this point. Looking around he didn't see anyone else in the usually abandoned park to ask if they  felt the heat too.

	Without meaning to his thoughts shifted from the sudden warmth he felt though to a rabbit girl he knew from his years in high school. What possesed him to think of this while burning up in the evening in a park escaped him, but he couldn't help but think of her. The way her pants always rode up and showed off her fat ass made him stare when he was younger. Now just remembering it though had his cock pushing from its sheath and hardening up quickly. Why was he suddenly getting so horny and worked up? The heat was all over him, assaulting him, along with mounting thoughts of every ass he'd ever seen in his life.

	Stumbling forward while trying to ignore his raging hard on the canine tried to leave the park again. Suddenly he saw her though, another person, and a rabbit to boot. It made all the thoughts he couldn't push out all the stronger. His nuts felt tight and with a shaking whine he came in his pants then and there, flooding the inside of his clothes with ropes of cum. Far more than he thought possible, when the orgasm ended his whole front was soaked, and thick drops were landing fro m his pants onto the ground below him. Thoughts though kept popping into his head, and his cock remained hard.

	Gerald moved towards her, staring at her ass, registering nothing else about her in the slightest. When he got up to her she finally turned to look at him, and spoke. "Uh...? Can I like, help you or so-" She was cut off when  on pure instinct he forced his pants down, cumming again almost as if on command. Thick shots of heady seed splashed against her while she screeched and lashed out. Pushing him away he easily fell onto his back. A string of insult were thrown at him before she ran away from him in disgust, trying to find help.

	The stress of the situation helped to clear the fog in his head for a moment. Mortified at what he'd done he began to stand, feeling an odd bit ofpressure between his thighs. Looking down he saw something his clouded head  couldn't comprehend fully, his orbs had swollen up, what had once be walnuts resting in a fuzzy sac was now baseballs churning with seed under his still throbbing cock. Grabbing at them cause him to moan out, they were real and he couldn't deny they felt full as all hell. Trying to think what could have caused this yielded no result for the lust addled Shepard.

	Walking a few more steps it hit him, the mosquito he hadn't gotten to crush. It had covered his forearm, well a small area of it, in something almost jizz like when it had burst. Could the small insect really be causing this? The thoughts raced through his mind between lewd ones that demanded he stop and stroke on his needy cock. Almost out of the park something caught his eye, a brown ball on the ground rolling back and forth by a tree. He needed to see a doctor but his curiousty got the better of the male. He moved closer to it and walked a bit to the side. Once he saw what the brown ball was though he stopped and gasped loudly.

	On the ground lay a squirrel, it's belly completely round, groaning and creaking like an over filled ballon. Small cock twitching and gushing a near  constant stream of cum, some even drooling from the animals mouth. The animal's balls were huge by squirrel standards, pushing the thing's legs apart. It was there flailing, just cumming while looking like it had downed a whole grape fruit. Reaching out towards it slowly, the squirrel let out a loud yelp. Surprised he moved back just before the animal ruptured, its whole body exploding out like an overstuffed water balloon, spraying the immediate area with cum, cum that had been filling the animal completely. until it had exploded from the pressure.

	Shocked he sat there, staring at where the squirrel had been. Slowly standing up he looked around and noticed what he'd been missing this whole time, splotches of white  fluid  littered in random places along the tree line and path. The mosquito had exploded from cum,  it's own cum? Looking back down at his balls greeted him with grapefruits hanging heavy in his sac, his cock begged to be tended to and relieved of the growing load inside of him. Panic started to set it, which seemed to only excite him more and make the heat he felt grow all the deeper. Running towards the edge of the park he looked around one last time. Seeing the rabbit girl he'd cum on down the path made him falter for a moment. One hand had dove down to her nethers, furiously playing with herself while the other kneaded on her tits which seemed to be leaking milk inside her shirt.

	There was no time to worry about her though, he needed help and quickly. The canine's balls were visibly blowing up every minute or so, cock drooling precum with need. It was nearly night time and he only saw one person on the street right outside the part, another guy thankfully. No crippling thoughts of his need to breed filled his mind as he ran towards what looked to be a decently short mouse guy. Yelling and screaming got his attention, the mouse turning around only to be greeted by another male with blls bigger than most fruits running towards him screaming for help.

	Opening his mouth to ask what the canine wanted and what the hell his problem was being naked outside proved to be his biggest mistake though. Gerald stopped short, the mouse screaming as a hawk from a nearby tree swooped down and wrapped wings and clawed feet around the boy's head. Screeching and Squaking as it ground on his face, the canine could only watch as the mouse boy's chin was soon dripping with semen. The mouse tried to push the bird off, though the animal's death grip kept it firmly attached and clocoa pressed right up against the screaming male's mouth. Forced to gulp down seed or drown in the constant assault the mouse's gut started to fill up and push out some.

	As he watched the display only became more arousing for the canine though, cock drooling larger quantities of pre, his now basketball sized  nuts churning and feeling tight in his overfilled sac. Cum was just gushing from the mouse'smouth now, the hawk was cumming even harder it seemed, its body starting to look round itself. Genitals trying to unload far more than physically possible at once. At this point the mouse wasn't screaming but moaning, hands grabbing on the bird to hold it close. cum staining his pants beneath the gut he now sprted that could easily pass as 6 months pregnant.

	The hawk's body was starting to creak, having grown  nearly spherical by now. All the work was  being done by the mouse now who just greedily gulped down the animal's cum. Suddenly to the mouse's, though not the canine's surprise, the bird exploded with one final squak. The mouse's whole front was drenched with cum, he didn't seem to care though, just flopping onto his back to wrestle his pants off and jerk himself off. A constant stream of cum  leaking from his tip the second he began to touch himself, balls already swollen to the size of melons. Gerald whimpered and sat there a moment longer before waddling off as quickly as he could with his massive nuts weighing him down.

	His nuts felt fit to burst, and they likely were at this point, his once decently thin gut was poking out just slightly, feeling like he'd drunk a few glasses of water all at once. Running as best the canine could down the street he tried to tone everything out, a cat girl sucking on her own massively swollen breasts as they gushed milk, her gut swelling from her own need and greed. Several feral dogs rolling on the ground, gut's too big to move, whining loudly as they all try to press their cocks against one another. A horse man with balls that would make bean bags look relatively small resting atop his  own nuts cumming multiple feet into the air.

	The dread set in more, but the excitement of it all grew, along with the swell of his gut. Soon it was audibly sloshing full of what he could only assume was his own cum, backing up and over producing inside of him. He'd look at home with twins now when he finally stopped running, agood 10 minute walk fromthe nearest doctor he knew he'd soon be too big to move, it terrified and excited him at the same time. His mind split in two between the rational side of himself and the horny creature he'd become.

	Collapsing down onto his knees he took in the sights around him, massive puddles of cum spread across the street and sidewalk. Windows coated both inside and outside in thick layers of jizz. Looking up he watched another bird, or well, a feathery sphere fall from the sky, upon hitting the ground  it burst like some kind of tactical jizz bomb near a bull male, coating his massive gut from the side. He didn't know the male he was now staring at, his gut  wobbling  about with the addition of as many load as the large male's cock put out. The man was howling in  pleasure, hands grabbing at his gut, either trying to push the size down or reach his cock to make himself cum harder.

	It was a futile effort though on his part, stretch marks began to spread out beneath the thinnly stretched fur of the male. Moans grew louder and more needy, like his body was reacting to the pressure reaching acritical point and trying to push his lust to new levels to get some of it out. With a bang  louder than Gerald had ever heard  though the bull male burst along one of the growing stretch marks, in a second he was gone. Replaced with a wave of cum that washed over the street near where he had been laying. That confirmed it for him, whatever he was infected with, whatever  everyone was infected with, he was going to burst from his own backed up nuts.

	While he still could he finally grabbed on his dick, inhaling sharply at the touch. Knot inflated almost painfully, throbbing with his accelerated heart beat. A few strokes was all it took to set the canine off and finally bring release of some degree. Immediately the swelling slowed, but refused to stop once the jets of cum started. Eyes rolling back the same part of his mind shut off near instantly, it felt better than anything ever had before. An orgasm that just didn't end, it only grew stronger with each second that passed. Even if he could speak past the groans he began to let out it  would be impossible to describe.

 	Ropes of cum sprayed onto the road in front of him, painting the few bits of grey white with semen from the horny male. As the size of his gut grew he began to lean back before finally falling completely backwards. Turning himself into little more than a gravid cum fountain. Belly resembling a beach ball by this point he finally began to feel the pressure that was bulding in his midsection. Still though his orgasm didn't stop, neither did his nuts which just produced more and more of the thick, salty fluid that was to be his doom.

	Looking up at the sky as he had just under an hour ago greeted him with a rather normal sight. Besides the lack of birds everything looked normal about him, taking him away from the almost intoxicating fear in the back of his mind. Hands moved to his middle and felt it swelling out against his touch. Cock throbbing with each jet of seed he pushed out of his strained form. The sounds started though,  the sloshing turnedto creaking and groaning from his hide. His nearly perfectly round gut started to show under  the layer of fur. Seeing  the stretch marks made him think for just a moment that it was the end before another shot of seed madehim howla nd forget.

	Salty, the taste of something salty was creeping up from his throat. Trying to gulp it back down was pointless, there was no where for it to go at this point. Opening his mouth wide he howled out for anyone left to hear before a small geyserof cumerupted from his mouth. The stretch marks grew and becamemore pronounced, but the pleasure still grew too. He didn't even notice as the sweling stopped  and pressure grew. He was too big to survive, and his body still cling on as best it could. Pointless as it might be the flows from his mouth and cock increased momentarily. Not enough though for the doomed canine. One more gargling moan escaped his lips before he heard a soft tearing sound  and everything went white. Hewould never hear his own pop, but the few who were still swelling near by did, a reminder of their own fates.

	A plague had started, one that spread instantly, left the infected with no time to respond  before they were addled with an unignorable lust, and it would spread quickly, from animal to animal, feral to bipedal.