Food Tank Puppy
When Zephyr opened his eyes the goberian puppy found himself in a dimly lit room. Around the room were various machines with blinking lights, and one ceiling lamp illuminated the room. It looked like a laboratory of some sort, the shady sort. He was not happy about being in the lab and he struggled against his collar which was chained to the wall. He wanted to chew through it but there was a hose stuck in his mouth.
Zephyr calms down and thinks back to yesterday, trying to remember how he got into this situation. He remembers talking to an eccentric dog scientist named Rupert about a new weight gain pudding that would make him fat like a pig, but now he was in a dinky lab and there was a feeding hose in his muzzle. A door opened behind Zephyr and Rupert walked in.
"Waist size is little above average for a puppy. Butt gives him an almost curvy appearance," Rupert was talking to himself as he input data into his tablet. "Balls look larger than average, unusual for such a young pup."
Zephyr grunted in protest, he didn't want this kidnapper scientist studying his balls of all things! Sure Zephyr was a feral puppy who walked around naked most of the time, but everyone knew it was incredibly rude to stare at someone's balls.
 "Don't be afraid, Zephyr." Rupert the scientist said. "This will only take a few days. And then we'll have you on the cover of the newspaper. We're going to be famous!" Rupert patted Zephyr on the head. “Don't worry about the hose, Zephyr, just relax and let me know if you feel any pain. It'll only take a little while to determine whether you are a hit with the public. Now, drink up! You need to keep eating until you can't eat anymore! We need to know how much your stomach can hold!" Rupert the dog scientist tells Zephyr. "You're going to be famous!" he says again and leaves the room after flipping a few switches on the machines.
Zephyr gulps down the food the scientist was pumping through the hose and laid down on the floor to digest it. The pudding tasted something like banana or maybe white chocolate. Zephyr can see now that there's a camera in the wall recording him. "This is brilliant!" mutters Rupert from behind the camera. "I've been studying dogs since high school."
Zephyr got up and tugged at the hose. "Oh don't be like that, Zephyr," said Rupert. "You're going to love this pudding! It's made from many delicious ingredients!" Zephyr stops tugging at the hose and sits back down again with his tail wagging slowly. The pudding tasted good, but he wanted out of this lab. "This pudding is going to make you famous!" said Rupert. "You're going to get so fat that you'll go from cute to ridiculously cute! I've got it all timed out perfectly!" he says excitedly as Zephyr watches his data change on a screen nearby. "It's going to make you so fat that your tiny little tail will wag all day long!"
After several minutes, Zephyr was starting to get full. Soon though the pup could feel himself slowly getting fatter. As he was bottom-heavy to begin with, fat piled onto Zephyr's butt first. It wasn't long before his belly grew heavier with lard, and his cheeks plumped up ever so slightly. His paws even began to swell as well, but Zephyr was still hungry enough that he was able to eat more straight from the hose.
The scientist watched with delight as Zephyr's belly grew larger than ever before. "Oh my gosh," said Rupert from behind his camera as he watched Zephyr get fatter by the second. "You're getting so big! I can't believe how much you're eating," Rupert said.
Zephyr grunted as he stood back up. The goberian puppy could feel his belly fat begin to spread against his knees. His butt had gotten so big that it was laying on the back of his heels and the top of his butt cheeks were nearly hiding his little puppy tail. Zephyr needed to try and escape before his heavy ass immobilized him. It was quickly reaching the point where it was too heavy for Zephyr to lift. With every step he took across the floor he felt gravity pull him down into his soft folds; it felt like he was wading through pudding on all fours as it pulled him downward with every step.
Zephyr tried frantically to wriggle free of this bizarre laboratory but he could not budge and remained stuck fast in place, as his body grew larger still. By the time Zephyr's neck rolls grew to the point of snapping off his collar, the blubbery puppy was much too heavy to run away. His belly nearly touched the floor, and Zephyr's butt fat had pooled over his heels. His face was so cute and round, he sported a few chins that blended into his neck rolls. The puppy's legs had all grown to more than twice their original width, and his paws were so chubby that Zephyr could barely move his toes.
While Zephyr was examining his body, Rupert had turned off the hose and was removing it from Zephyr's muzzle. "Phase one is complete. Let's move you into my yard before phase two. You're going to need more space." Rupert said.
***
Rupert walks over to the door and opens it up onto a bright day outside where a couple of neighbors are walking their dogs across a grassy lawn nearby on their way home from work or school; they see Rupert leading Zephyr toward them and they both stop dead in their tracks when they look at Zephyr very carefully waddling beside Rupert. "He's so fat!" exclaims one of them as they giggle with each other like kids at recess at school." Oh my gosh! Look at how fat he is!" says another neighbor walking by with her dog as she giggles along with her friend.
Zephyr was embarrassed, blushing hard at these comments, but he was too tired to argue. Rupert seemed proud, however. "He's going to be famous worldwide," said Rupert as he led Zephyr around the side of his house and into the front yard.
It took five minutes to reach the yard with a lot of stopping to catch his breath, but finally the puppy could lay down on his big belly and rest. Zephyr had worked up a sweat, his fur glistening in the hot Summer sun. So Zephyr was grateful when Rupert poured water from a garden hose into the panting puppy's mouth.
Zephyr's stomach was still digesting all of that pudding, and he continued to get fatter. While he was resting, Rupert pulled out a syringe and injected something into Zephyr's flab. "This serum might slow down your weight gain a tad, but it'll be worth it." Rupert said. "With how promisingly big you were down south, you'll be a great subject for my other experiment too. So, why not, I say."
Zephyr could feel the serum working a few minutes later. It started as a tingling sensation in both his dick and his balls, which grew stronger in seconds. The sensation was pleasant, and Zephyr could feel his bits getting bigger. His uncut dick grew longer and thicker than before; poking out from beneath his wide butt cheeks as it grew with every heartbeat, and he wasn't even hard yet. The goberian pup's balls grew too, swelling and hanging beneath those sweaty rolls of fat that was his rear end; they were so huge they hung down behind his legs and rested on the ground on either side of his still expanding dick.
Zephyr had never felt so incredibly aroused. His big cock throbbed feverishly between his swollen balls. The neighbors were starting to gather across the street, not quite sure of what they were seeing.
One neighbor mutters aloud as she peers into Rupert's yard. "What is that?" she asks her friend next door as she gazes curiously at Zephyr who begins blushing hard from both embarrassment and arousal. "I've never seen a puppy looking like this!" she says morosely as she begins laughing nervously at her own comment and walking away. Zephyr got the feeling that these neighbors believed he had volunteered for this experiment.
All this while, Zephyr was still gaining weight as he quickly digested the last of the pudding. By now Zephyr had grown so large that his belly, now drenched in sweat, was firmly on the grass; lifting his bloated paws up off the ground. His butt was swelling with lard in an effort to keep up with the size of Zephyr's balls. The fat on his back was merging his neck rolls, weighing heavy on the pup's spine.
Zephyr didn't know if it was the heat, the arousal, or a side-effect of the serum, but his mind felt fuzzy. He wanted to tell Rupert to turn him back to normal, but the words wouldn't form coherently in his mind. Zephyr whined and wiggled around in protest, which only caused his body to jiggle about uselessly.
"Oh, so cute!" Rupert smiled proudly from behind his camera phone camera as he watched in delight as Zephyr tried with all his might to grunt and whine and jiggle about. As Zephyr's growth slowed to a stop Rupert switched to his tablet and started typing. "Phase two seems to be another success."
Zephyr barked as his empty stomach growled so loudly that it startled him. Rupert bent down in front of Zephyr's fat face and showed the pup his phone. Zephyr watched a video showing just how much of a blob he had become. Zephyr was in awe at the sight of himself. His belly spread out a foot to either side and propped his paws above the ground by several inches. The pup's ass had grown to completely cover his tail and sagged down to cover his hind legs too. The fat on his back was starting to merge with the base of his head. His huge balls were half the size of his ass, and his flaccid dick rested heavily on the ground, a yard behind him. All the while, Zephyr was sweating and filling the air around him a musky stench that even he could smell now.
Seeing himself like that with his hazy mind, he began to feel a sense of pride. If he could move his tail he would wag it. As Zephyr was a tiny part cheetah, he purred instead. Zephyr's stomach growled again and he whined in hunger.
"A puppy that purrs?" Rupert scratched his chin. "Well, I guess that means you approve!" Rupert turned to head inside and Zephyr, barely able to turn his head, whined louder. "Don't you worry pup, we'll get you fed soon." And Rupert went inside.
Zephyr was left to sweat and whine in the afternoon sun for a few minutes before Rupert returned with a camera on a tripod. Rupert set up the camera beside Zephyr, then went back inside. After a few more painfully hungry minutes, the scientist came out carrying a stack of plastic bowls filled with leftovers. He put them down and opened one.
Rupert held it close to Zephyr's nose to sniff at the cold meatloaf inside. "Do you want this?" Rupert asked.
Zephyr was usually more discerning about his diet, but he whined in response and tried to reach the meatloaf with his tongue. His stomach had been empty for too long, even if it had only been an hour since he ate that pudding. The bloated pup couldn't figure out how he digested that so fast, but he couldn't care enough to think about that for long.
"Open up," Zephyr did as he was told and opened his muzzle wide, then Rupert dumped in the meatloaf. It was bland and basic, but at least he was finally getting fed. Rupert opened a bowl of macaroni next and dumped it into Zephyr's mouth as he finished swallowing the meatloaf. Mashed potatoes were shoveled in next, and then lasagna and old salad. Zephyr was missing the tasty pudding, but it felt good to be eating anything. Rupert gave Zephyr some water from the hose to wash it all down. Zephyr purred as he felt his stomach gurgle and digest.
Rupert turned to the camera. "Leftovers piling up in your fridge or freezer? Sink disposal broken? No worries!" Rupert waves over Zephyr trying to lick up some lettuce sticking out of his mouth. "I have created a living disposal unit who'll gladly eat anything you give to him." Rupert patted Zephyr on the head. "He's capable of digesting tons within mere hours, with a stomach that can handle all kinds of food easily."
The neighbors across the street aren't quite sure what to believe. They watch and listen with fascination, wondering how anyone could create such a thing. One neighbor mutters aloud, "It just looks like a giant dog," she says as she stares in amazement at the bloated, overweight puppy.
Rupert fiddled with the camera and moved it behind Zephyr for his next ad. "Zephyr has a wonderfully endowed cock. Let's show this for real!" Rupert switches zooms in on Zephyr's massive and sweaty member. "And his balls too! Full and fertile. Ready to breed any time, anywhere." Rupert zooms out and walks the camera around Zephyr. "So handsome and so ready to fuck!" Rupert turns the camera around to show Zephyr's thick, fat cock, which is already beginning to stiffen and raise off the ground in anticipation. "Now you too can have a sexy stud like Zephyr as your own personal toy, just pay him in food. He'll eat anything!"
Zephyr barked and whined, the leftovers still left him feeling hungry. He strained his fat neck to look at the neighbors across the street. Maybe one of them has food to feed him? Unable to speak, he tried smiling and looking as cute as he could, pleading for something to fill his large stomach. The neighbors had no idea what to do, and everyone remained silent as they stared dumbfounded at the enormous, bulging, sweaty goberian. Zephyr's dick swelled just thinking of food, and his stomach growled.
"Come on folks!" Rupert called out. "This little guy is starving, there's no harm in giving him your leftovers." Rupert slapped Zephyr's wet back and grinned widely. "Your trash is his treasure!" He waved goodbye to the onlookers and headed back inside to upload his ads.
Zephyr was bewildered. Trying to comprehend everything that's happening was proving too difficult, so the hungry puppy focused on his immediate needs of food and sex. Wondering if Rupert's ads would really work.
***
To feed his test subject in the days since the ads were posted online, Rupert fed Zephyr fast food and pizza. The delivery person was taken aback when he saw, and smelled, Zephyr. Eventually someone actually visited the pent up puppy. It was a girl pup; she was a brown cocker spaniel mix and wore a yellow beanie. Rupert was sitting on a lawn chair nearby as the girl stood at a distance. Zephyr thought she was kinda cute, causing to blush in embarrassment at being seen in this state; something Zephyr thought he was used to by now.
The pup was with a bipedal jackal man who wore a purple vest and red jeans. He had a mildly sly look about him.
"Greetings customer!" Rupert beckoned the duo to come closer. "Are you interested in my puppy food tank? Or maybe you're here to have a little 'fun' with him, hmm?"
Gwen looked over Zephyr's body and sniffed the musky air as the jackal man walked around examining Zephyr. "That sounds interesting, I'm Gwen and this man is Toma." said the spaniel pup.
"His dick is a bit large for conventional sex," Toma said. "But I know a lady who could take him." Toma slapped the bashful Zephyr on the ass, sending his body jiggling and causing his uncut dick to throb. "We're here to buy him from you." And Toma reached into his wallet and handed Rupert cash. Rupert counted it and laughed.
"Ha! You must be rich! I'll arrange the transport. Are you sure you don't want to try him out first?" Rupert turned to Gwen. "How about it pup, you want to see how much fun Zephyr can be?"
"Ever tried him yourself?" Gwen coolly asked.
Rupert wasn't prepared for that question. Of course Rupert never even thought about having sex with Zephyr himself, the scientist wasn't concerned with such activities. "I, um, hmm... I have not, no," Rupert said.
Gwen nodded. "Then let me try him out." She walked around and grabbed Zephyr's dick between her paws. It was too heavy for her to lift off the ground, but as she rubbed it his dick grew harder and raised up on its own. Gwen had to step back as Zephyr's member grew longer until he was fully erect. This activity sparked Zephyr's hunger and his growling belly rumbled throughout his huge body.
"Heheh. Good thing I brought some food." Toma took off a backpack he was wearing and pulled out tubs of food, which made Zephyr's mouth water. The obese puppy opened his mouth as Toma stuffed it with old ravioli.
Gwen was taking her time and had jumped up onto Zephyr's cock. With how wide it was, it was easy for Gwen to balance on top of it. She had begun hugging it and rubbing her body along its sweaty length. Whatever she was doing was left up to Zephyr's imagination as he could only guess from the sensations.
Toma dumped in a bowl of buttered peas next, which were gross, but went down easy enough as Zephyr swallowed them whole. This was followed by stale old pizza slices, which took awhile to chew.
Gwen had scooted up to sniff and lick at Zephyr's ass, which was soaked in sweat from days spent in the heat. It was also a sensitive area of Zephyr's body, prompting him to moan and purr in pleasure as Gwen worked her tongue deeper between his ass cheeks. As Zephyr was fed more junk he could feel Gwen push herself in between his musky cheeks. The goberian pup couldn't believe that this cute girl could withstand his heavy stench, and even enjoy it.
Zephyr was trying to hold it in and keep focused on the food, but feeling Gwen massaging his butt sent him over the edge. He moaned loudly as his cock throbbed and shot out a load of cum behind him. His purring vibrated through his flab, massaging Gwen in turn. Everyone could hear her moaning even through those fatty rolls. Zephyr shot out another load of cum onto the yard.
After she was satisfied, Gwen crawled out and hopped on top of Zephyr, to avoid stepping in the puddle of his cum. "We'll take him!" she said.