"Arg, curse you Eggman…" Knuckles groaned as he strode through the halls of the museum, a satchel on his shoulder. A multitude of other humans and animals were there as well, surveying the fine art among the tall walls. Though Knuckles was much shorter than the average person, he carried himself with determination, for he had to have that to recover what he had lost.
The Master Emerald had accidentally been destroyed on another one of Dr. Eggman's conquests to steal the Chaos Emeralds from Angel Island. After it shattered the fragments spread out over all the earth, which in turn caused Angel Island to fall from the sky and into the sea. It now floated against the edge of one of the major continents.
Currently he had tracked a fragment to have been found and put on display in a museum, of which he was in now. Knuckles came up to a crowded single room, the entire domed roof a huge glass window.
Someone was speaking, "And here we have an unknown gemstone. Notice its cool, green color and alluring glow."
Knuckles forced his way through the crowd and now stood just at the red rope separating the people from the stand that held the green fragment of stone. "Hey, you said that's an unknown gemstone right?"
The announcer, who Knuckles saw was a purple and red lizard, answered, "Why yes, apparently scientists don't…"
"They don't know because that's part of a powerful gemstone that was destroyed, and its fragments were spread across the world." Knuckles cut in.
"How do you know?" The lizard asked. Knuckles simply chuckled softly and held out his hand. The fragment glowed a bit brighter and lifted from its stand, phased through its glass encasement, and landed gently in his gloved hand. The crowd behind him began to murmur loudly.
"This is a piece of a great gemstone that I am guardian too."
Suddenly the lizard's eyes widened. "You're Knuckles aren't you?" Knuckles nodded. "Then that's you're gem?" He nodded again. The lizard rubbed his chin. "Ok then. I'm not sure how the manager will react to this but go ahead and take it with you.
"Thanks." And with that Knuckles headed out of the museum, leaving its patrons in a buzz of excitement as his name spread throughout. Knuckles was a fairly well-known name, since he had aided in saving the world from Eggman a few times, but even so, his name was still not known well enough that he would be considered a celebrity. However, and the thought made his eyebrows narrow, Sonic was the much more popular one of the group.
He immediately displaced Sonic from his mind and opened his bag. Inside were other fragments of the Master Emerald. Instead of putting the other fragment with them he allowed the shards to float from the bag and coagulate around the one he had found. Knuckles lifted it to the air where a bright flash of light hid the shards from view before they disappeared, having gone back to join with what he had gathered of the Master Emerald already.
With a satisfied nod he set out to figure out where the next piece was. He'd gathered information that the piece could be being used in a laboratory in the city he was in. Knuckles had found a few fragments in this city actually, and he figured he was very close to finishing his search.
"Where to next," he thought out loud as he dug into his satchel, fishing out a sheet of paper reading ‘Visoron INC which should be the laboratory that supposedly is using the shard for whatever reasons. Not one for taking the bus, Knuckles went to the side of the museum and, using the spikes of his knuckles, began scaling the wall to its roof. From atop the tall building he jumped off and set out to glide to his next destination.
It wasn't hard to find the research labs; it was just a single large building on the edge of town, solid white, only one row of windows near the top floor, out of the many there were. Knuckles immediately knew walking in and asking for it wouldn't be the best approach. So, landing on the roof, he broke open a large air duct and climbed into the labyrinth of pipes that stretched throughout the building. Even with the large expanse of pipe it wasn't hard for Knuckles to hone in on the shard, and apparently his suspicions were right, he felt the shard's power being used.
"Great…" he mumbled as he looked through the air vents that looked into the room that the piece was in. The green gem was hooked up to several cables which led to several computers hooked to the walls and ceiling. Looking closer he saw no one in the room, so he kicked the vent open. It swung silently on its hinges as Knuckles dropped to the floor and went to retrieve the shard. Holding out his hand it did the same thing the shard at the museum did. Once he had stored it in his bag is when trouble started.
Alarms began to blare. The room was bathed in a pulsing red glow. A computerized voice began to speak and repeat, "Intruder alert. Intruder alert."
"Ah screw it!" Knuckles blurted and darted out an open doorway. Outside the room the base was alive with activity. People, all in white lab coats, ran to and fro. Knuckles had to hide in a secluded hallway for quite a while before he could begin creeping his way out of the base. But this wasn't with ease in the least. People were everywhere still and he stuck out like a sore thumb among the sea of white.
With an emergency maneuver Knuckles ducked into a nearby room. This room had many cylindrical glass tubes, each holding some sort of fluid inside. He hid behind one far from the door just as a fox and two men came in, looking around franticly. They weren't there but a few moments before rushing out.
Knuckles peaked out around the cylinder and saw no one. "Ok… time to go." With that remark he made a dash for the door, just to find it close suddenly.
"Ah Knuckles, so glad you could come," came a voice.
Knuckles right away knew who it was. "Eggman…" he groaned.
"Hohohoo!" Eggman laughed. "That's right! And I really do thank you for collecting the pieces of my Master Emerald. Now if you'd be so kind as to hand it over." Knuckles only scoffed. "It seems I'll have to make you hand it over. I'll come by to pick it up later; unfortunately I'm actually not there yet. Until then, have fun with the remains of an experiment of mine. I don't know what it does but he gets lonely when no one plays with him." And with that Eggman's voice went quiet.
Knuckles' attention was then diverted to a tank that was singled out from the others. It began bubbling nosily. The glass cracked. The crack spread throughout the glass. Then the container shattered. Knuckles ducked behind a nearby cylinder and peaked out from it to see an amorphous, colorless glob, constantly changing shape. It was strange as it seemed to extend one way randomly and then retract the opposite end for it to move anywhere, strange enough that Knuckles could only stare as it did. Then he finally noticed that it was actually moving towards him.
"Ah great…" With haste he turned around and began punching the door to try and open it. It seemed to work as with each strike the door inched open, but then the blob had surrounded a foot and it felt hot enough to make Knuckles yelp. Because he wasn't punching the door now it closed up tight again. He kicked at the blob and severed its grasp of him. With a few more he had scattered it into small bits among the floor, and all over his shoe. As he began work on the door again the blob began to regenerate, pulling its pieces back together. Once near its full strength it lifted from the floor, floating like a ball of jelly in the air, and flung itself at Knuckles. But by then he was already out the door. The door then shut and the blob splattered against it.
Knuckles, within moments, had exited the building and ran to a forested area, leaning against the first tree he saw.
"That was not what I expected…" he thought aloud. "At least I got the piece of the Master Emerald. Now I just gotta… huh?" He looked down at a glimmer of light on his shoe. It was the one that blob had surrounded his shoe. The goop was moving, collecting, and there was a lot of it. To Knuckles' surprise it collected and began floating, as the main bunch did. But it was only as big as a baseball as it hovered just before his face.
He took a step back, another step back, another. With each one the orb stayed the same distance from his nose. Then Knuckles found himself up against a tree. It was obvious that he couldn't just punch it and make it go away, and no trick would get it to take its focus off him.
"Ah great…" he grumbled. That's when the orb responded. It began to bubble on its own for just a moment before ramming itself against Knuckles' face, mainly his mouth. His head hit the tree then the ground as he struggled with it. It began seeping into his mouth and down his throat. Knuckles choked and was forced to swallow it.
He let a loud sigh and put his hand to his stomach, which roared. Waves of dizziness began to overcome him. His body shuddered, his tail moved uncontrollably, his eyes twitched madly. What was going on? It seemed like everything about him was suddenly terribly wrong.
Then it all just stopped. Just like that Knuckles felt fine again. He stood and retrieved his bag, which he had thrown against a tree.
"That was strange…" he said and again put a hand to his stomach, which was silent. "Ah well, time to find the next piece…" Another wave of fatigue came over him.
Then he fell unconscious.

It was late at night when Knuckles finally woke up. His head ached as he collected his bag and tried to recall the events that had happened, only to find as he remembered them that his head would hurt more.
"Again... curse you Eggman..." he groaned as he made his way back to the city. It wasn't untill a few minutes after waking up that pain erupted in his stomach in the form of a loud gurgle and groan. "Arg, I'm starving," Knuckles said to himself. He looked around quickly for somewhere to eat. His eyes set upon a Mc Donalds.
Knuckles gulped. Keeping a strong body like his required him not to eat anything unhealthy or of the sort. His stomach let out another long gurgling. "Ohh... just this once..." he muttered and headed inside.
In the Mc Donalds wern't many people, four or five at most, including the one cashier. The tiger stood there with a sort of tired expression as Knuckles came up and looked over the menu overhead, having never seen what they have.
"Umm... I'll... mmm..." Knuckles went, scratching his chin a bit. Then he finally shrugged and said, "I'll have a Big Mac."
The tiger seemed to snap out of a trance. "Oh, its Knuckles. Sure thing." He typed somthing into the register. "Did you want a drink or fries or anything?"
"Mmmm..." Knuckles thought again. His stomach let out another gurgle, pushing him to say, "A large fry and drink then."
"Alright..." The cashier typed in more things. "And would you like to supersize any of that?"
"Come again?"
"Do you want to make any of your order bigger for a small extra cost?"
"Oh, uh... never heard of that before... Nah, thats ok." As soon as Knuckles had gotten his food and filled his cup with soda he sat down. Slowly opening the container he found the Big Mac a lot bigger than he thought. He groaned a bit, thinking this wouldn't be good for him at all. This coupled with the ample amount of french fries and the large drink just made him think that he's going to regret this even more.
"Well... here we go," Knuckles said to himself. Then he took a bite. All at onc his senses exploded. The burger was one of the best things he'd ever had in a long time. It was warm and juicy with pleanty of meat. He chewed it slowly, savoring the flavors as long as possible before letting it slide down his throat and into his belly.
"Ohhh... that was amazing!" he said as he continued to chomp on the burger, eating it quicker and quicker before the sandwich was gone. Knuckles put a hand over his statisfied belly, but another feeling came over him. He wanted some more to eat. His hand reached for his fries, grabbing a big handful and stuffing it into his mouth. Again he loved the taste of the new food, but the fries were very salty. Despite this he finished all the fries before he began chugging his soda, finishing it within the minute.
Knuckles groaned. He was stuffed. In fact, he couldn't remember the last time he'd been this full. "That was great..." he said. "But that was a big hamburger... urf." Then he belched loudly and patted his gut, which now felt like it bulged out slightly. "Dang... time for a diet i guess." He stood up with his bag and left the reasurant. Again he placed his gloved hand on his bloated abdomen and groaned. He made a mental note not to do that again, ever.
He immedietaly headed to an expensive hotel he had gotten a room in. Being a treasure hunter did mean he had ample amounts of money. Up the elevator he went to the top floor and down the lit hallway to his own penthouse suite. Usually he doesn't sleep in any place like this, but since he was out looking for the shards of the Master Emerald he had to have some place to stay. He figured if he had to rent a room it might as well be nice.
Once inside he went into a large circular living area with a giant television. He threw his bag down and ploped down on the plush sofa and turned it on, finding a channel telling about different gemstones and minerals. Knuckles did enjoy these shows. He put the remote down, but then noticed something under it. Picking up a piece of paper he found it to be a room service menu. The echidna almost got sick as he looked over the many images of the food they had available, but he couldn't help but wonder what they would taste like. Then the desserts section came up. Cakes, cookies, ice cream and other images littered the page with short blurbs of wording under each. It was here he had to put it down.
"No more..." he told himself as he laid down on the pillow and turned the TV off. Closing his eyes he continued to tell himself to watch his eating habits now. He continued to do so untill he was sleeping.

Morning came quickly, for Knuckles at least. He awoke, sat up, yawned loudly, stood up and went to the bathroom to wash his face. Once he'd splashed hot water on himself he was startled by his reflection in the giant mirror on the wall. He actually looked a bit bigger than after he'd eaten last night. Quickly he looked beside the sink to a scale and jumped on it. The digital number blinked for a moment before showing 101. Knuckles had gained weight.
"Eggman..." he growled through his teeth. "Great... just great..." Knuckles exited the bathroom and paced the room. "I ate too much yesturday and now i'm bigger...' he sighed. "No... its ok... I can just work it off." Then, as if on que, his gut rumbled hungrily. "Urf... I'll work it off later then..." And with that Knuckles picked up the room service menu. Again his stomach sounded and it pushed Knuckles to order enough breakfast for two people. He absolutely hated that he was eating so many pancakes, sweet rolls and waffles, but he couldn't help but swallow them all down. He was hungry and he wanted food.
When he finally finished he hated himself even more. "I'm turning into a pig..." he said. "I don't have time for this, i gotta find the shards." With that he exited his suite and went back into the city to figure out where the next shard was.
Only four hours of searching leads in the city later he surprisingly found himself hungry again. "Really?" he said to his stomach. He was sure that he ate enough for breakfast to last him the entire day. It just wasn't possible he told himself, so he forcibly ignored his rumbling belly and continued searching. But his stomach didn't give up. It groaned louder and louder and made Knuckles feel worse almost by each passing minute. So a half hour after he began ignoring his stomach he gave in.
"This is the last time..." he muttered to himself. "The LAST time!" He looked around for somewhere to eat. His eyes passed over another Mc Donalds, and it almost made him heave, so he looked the other way and found a Dunkin Donuts. This was another place he'd never been to, and didn't know much about either, so he went in.
Inside he came right up to the counter, where a friendly cheetah girl waited. "Welcome sir, what would you like?" she asked.
"Hmm..." Knuckles thought and looked at the menu and display of doughnuts. Not wanting to ask what doughnuts were exactly he examined them himself. Right away he thought it was just bread, but that made him think that they wouldn't have that many calories. Then he looked at what he could order. A single doughnut, half a dozen, a dozen. His stomach growled as he skimmed over Dozen on the menu, so he said "I'll have a dozen," but his stomach rumbled again, making him say, "uh... make that... three dozen glazed doughnuts."
The cashier smiled and said, "Right away sir." She collected the doughnuts in the boxes for Knuckles and, after paying, said "Have a nice day!" Knuckles smiled a bit nervously and went to a secluded corner of the reasurant, the only people near a group of three guy wolves. Knuckle made sure his back was to them as he startd eating.
The first doughnut he had set him off. He had to use a lot of his will to make sure he didn't shout out. He moaned at the taste of the glazed pastry and swallowed it with an enthusiastic gulp. With that he was off and stuffing doughnut after doughnut into his mouth, just right into his mouth, chewing for only a moment or two, and swallowing. Knuckles loved this new food enough that, after finsing the first dozen, started stuffing two doughnuts into his mouth at once. And by the final dozen he just put one in his mouth and swallowed it whole.
The end result was three empty doughnut boxes and an overly stuffed Knuckles. "Ooohhh..." he groaned. "That... may not have been... a good... idea... BURRRRRRP!" Knuckles covered his mouth right away after his enourmous belch, but it was too late.
"Whoa!" shouted one of the wolves behind him.
"Was that you?" asked another, standing from his chair and going over to Knuckles. The other two followed.
"Wait a sec..." went the tallest of the three wolves. "It's Knuckles!"
"HUH?!" blurted the other two wolves, one of which wore a hat on the side of his head while the other wore nothing.
Knuckles only went, "Uhhh..."
"Dude!" exploded the tall one suddenly. "I didn't think you ate at places like this."
"Uh... i don't... usually."
"Then why are you?"
"Cause i'm hungry!" Knucles shouted, then belched. The other two wolves giggled a bit to one another. "Urf, i'm leaving." And before any of the wolves could say anything Knuckles stormed out of the reasturant. Going down the sidewalk of the street he thought aloud, "I know what they were thinking, yeah, they thought I was supposed to be a big muscled echidna who works out at the gym all day, but they see me like this!" he pinched a bit of flab on his thigh, "and now they probably think I'm just a pig..." Then he decided, "This has to stop... I'm going to stop all this eating, I'm going to go work out at a gym all day, then tommorow I will get back to finding the rest of the Master Emerald"
And that's just what he did. The rest of that day he spent at a local gym, running, lifting weights and doing all sorts of excercises. However, halfway into the afternoon he became hungry again somehow, but he told himself over and over that if he gave in that it wouldn't be good for him in the least, so he worked out further. He worked his muscles to near death, worked past extreme fagitue, even broke a treadmill because he ran it so long and hard.
When Knuckles came out of the gym he was covered from head to toe in sweat, his entire body throbed painfully and his stomach would groan and moan one after another. Even so, Knuckles felt good about himself. As he made his way slowly, and wearily, back to his expensive suite he grew more and more hungry, and his willpower was running out. He struggled just to let his bag from his shoulder and it caused him quite a bit of agony just to sit on the couch.
"Yeah... good... day..." he managed to mutter. "But... so... hungry..." His stomach let out another roar. "No... I... won't..." Another roar. "No..." Another. "Oooohhhh..." Knuckles hit the side of the couch. "Fine..." Losing some self-respect Knuckles reached for the phone and dialed for room service, picking up the menu.
"Room service. What would you like to order?" asked a slightly tired male voice.
"Uh, yeah, I'd like..." Knuckles flipped to the dessert page just then. "Umm..." In his mind Knuckles hit himself. "Can I get four, no, five chocolate cakes?"
"Alright."
"And three large batches of sugar cookies too?" Knuckles suddenly added. "And three 2 liter bottles of Cola?"
"Sure thing. Going to have a party eh?"
"Uh... yeah."
"But it's pretty late dude."
"Just bring the food to room 2830!" Knuckles shouted.
"Alright, alright! It'll be there in about an hour."
"Urf," Knuckles groaned. "Then add a tub of vanilla ice cream... for the party of course."
"Alright then." Then the phone went silent.
Knuckles sat up and hit his head, telling himself, "Stupid stupid stupid stupid stupid!" He looked down to his stomach. "This is the absolute LAST time I do this, ya hear?" His gut actually rumbled right after he spoke to it. "Good." And with that he laid back on the couch and waited.
As the person on the phone said, an hour later his food arrived as the doorbell sounded. Sliding off the couch Knuckles answered the door to find the same tall wolf he'd met at Dunkin Donuts.
"Oh, uh... hi again," Knuckles said, slightly embarrased.
"Hey, its Knuckles again!" The wolf smiled. "You must be throwing a pretty big party to have ordered all this." And the wolf pulled into view a large cart carrying everything Knuckles ordered. "Oh yeah, name's Marcus by the way. Nice to meet ya!"
But Knuckles didn't hear him, he only saw how much he'd ordered.
On the tray the five chocolate cakes were in fact very big, each one had three layers, but each were the same large, rectangular size and reached almost two feet in the air. The three batches of sugar cookies were contained in a bowl so large it could have been a small tub. The bottles of cola didn't get to him much, but the big container of ice cream was large enough to put everything else he ordered into. Knuckles let out a long sigh.
"So... how much?" Knuckles asked.
"342 dollars, heh, not including tip," Marcus said, grinning a bit.
"Ah. Just put it on my tab and... here." Knuckles went back inside and returned with 70 dollars for the wolf. "There, and thanks." Knuckles opened the door further and let the wolf roll in the cart, putting it near the wall beside a normal sized kitchen area. He then proceded to load all the food onto the table surrounded by the couches and the large TV.
"So... when's the party?" the wolf asked.
"Uh... umm..." Knuckles looked away. "Yeah, so I'll see ya later."
"Um... ok?" He took another look at Knuckles, then his food, then the room, then left the room. Knuckles let out an extremely relieved sigh and turned to the food.
"How in the world am I supposed to finish all this?!" And again he hit himself, saying "Stupid stupid stupid stupid stupid! UHRG!" He sighed as his gut rumbled again. "Well... I might as well start."
Knuckles went over and sat on the couch with a plate and knife. He cut a single slice from the uppermost layer of a chocolate cake and started eating it. He finished it fairly quickly, and found the slice sitting quite heavily inside him. With a hungry and irritated groan he got to work on the rest of the cake. Slice after slice he cut and ate, being careful so that none of it got on him. He felt like he should stop after the first cake, but he just kept eating.
Then a strange urge overtook him. He looked at the remaining four cakes with a bit of more lust, for the taste of chocolate to Knuckles had become very magnetic. This then manifested in the form of larger and larger slices, and with him eating them faster and faster. By the final two cakes he just threw away his plate and started grabbing chunks of cake with his hands and stuffing it into his mouth, swallowing enourmous bites as his gorgeing went on.
It didn't stop once all the cakes had dissappeared. His hands dove right into the bowl of cookies and did quite the same thing, just with larger handfuls and swallows. Already his belly bulged out far, nearly an entire foot with all the cake he'd scoffed down, and Knuckles didn't even notice. The only things he knew was that he was still hungry, and there was a lot of food in front of him.
Once the cookies were gone he satisfied his thirst. One by one he chugged down the bottles of soda. With each one he drank the more gassy he became, belching often between transitions from one bottle to the next, and soon belching between gulps. Then he threw the bottles aside and just stood there belching for a while, each one seemingly louder and longer than the one before, almost seeming to not end.
It was only when he remembered the ice cream that he stopped venting his gas and went to have a look. He was shocked, for all the ice cream had actually melted while he was eating. He didn't know what to do, but then he got an idea. Though the large container was heavy with the melted dessert, Knuckles lifted it up and put the corner to his mouth. He then tipped it and began to guzzle down the ice cream. Gulp after gulp flowed into his mouth then into his belly, making it expand further. Slowly the container emptied as Knuckles became fuller and fuller.
Once he was finished he threw the container asside and let an enourmous roar of a belch. Then he plopped down on the couch, and found his belly stuck out past his knees. He was about to grow angry again at his gluttonus feast, but the feeling of being extremely overstuffed got to him first and he fainted.

The next morning he woke and again stumbled into the bathroom, while his eyes were still closed. It had become a morning ritual by now to go there to spash hot water on his face he'd done it so many times. He turned the faucet, washed his hands a bit, then splashed the steamin water in his face. Drearly he opened his eyes and blinked a few times, then looked into the mirror.
Knuckles became paralyzed with his reflection.
The body he used to have was now buried under a thick layer of fat. His face had plumped up a bit in his cheeks, which he noticed as his face went through a multitude of expressions. His neck panned out to meet his softening arms and chest, his arms of which were more than three times as thick than normal and sagged with fat. Knuckles immedetaly noticed the white crecent on his chest had begun to disfigure due to his chest sagging in two fat lumps over his belly, and his belly bulged out just as much as last night, but now also sagged over his legs a bit. His hand moved to feel the fat of his newly widdened thighs. Now instead of the straight two rods that were his legs and behind he now had thick thunderthighs and two balloons for a rump, of which wobbled every time he took a step. Also included, his tail had fattened quite a bit as well, short as it may be.
After half an hour of silence he finally took a deep breath and managed to bellow , "AAAAAAAAAAAAAAAAAAHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH!!!!" He grabbed the plush of his stomach. "WHAT THE HELL IS THIS?! WHAT HAPPENED TO ME?! WHAT HAPPENED TO MY HARD BODY?!! AAAAAAAAHHHHHHHHH!!!" He then began punching the wall, putting a hole in it with just the fourth hit. Knuckles continued on to bang his head on the sink, kick the tub, tear down the shower curtain, then collapse.
"What happened... what happened... what happened..." he repeated to himself for the rest of the hour. "I... I used to be thin..." He stood up. "And now..." He looked at his reflection. "Now... now..." He turned around and grabbed his butt. "Now... now i'm just a fatass..." Sadly he went to the scale and stepped onto it. He remembered he used to be a slim 96 pounds, but had gone up to 101. With a gulp he looked at the new number
The scale read 154 pounds.
An incomprehensable stream of curses and other language poured from Knuckles, but it all stopped when he looked back down. The number had gone up to 155. He bellowed angrily again, then gasped in horror as he watched the number on the scale contiue to rise almost every minute. 156... 157... 158... 157. Knuckles sighed with a bit of relief. But then it went straight to 160.
"It's broken..." he lied to himself. The scale was obviously brand new, so in his anger he broke it himself and left a note for the cleaning person saying it slipped off the shelf he'd put it on. He stomped out of the bathroom and began to think. "I'll have to put off looking for the Master Emerald's shards untill I lose this weight. Hmm..." He thought for a while, then decided. "I'm going to the gym, but I can't be seen like this."
Quickly Knuckles rushed into his bedroom and brought out a loose fitting, black under armor shirt and sweatpants and put them both on. He was in luck, his excess flesh didn't seem to push his clothes out. However his butt still seemed a bit round under his pants, but he only could hope people wouldn't notice. With his clothing on he went right from the hotel to the gym.
He worked himself to the brink of death that day, willing himself to work harder and harder. Despite his muscles acheing and his belly groaning for food he kept on. His will overpowered any bodily needs as he lifted enourmous weights past 800 pounds, ran four treadmills at maximum speed for long periods untill they either broke or caught fire then broke. Any other machine there he worked untill it broke as well. Well before noon was when his muscles wanted him to stop, and even before that was when his gut ached for him to eat, but he ignored each of these into the day. The clock ticked into the afternoon, then evening. 6 o' clock, 7 o'clock, 8 o'clock, time just went right by as Knuckles continued to work himself more and more.
By the time he'd finished it was 10 o' clock. He'd managed to workout for more than 12 hours straight, no food, no water. Every part of his body was, again, drenched in sweat, even the quils that fell from his head dripped with sweat. To Knuckles he'd accomplished somthing great, for he already felt thinner and lighter, but this could only be the immense dizziness he carried as he stumbled down the street. He had the intention of going back to the hotel to sleep, but he was actually wandering with his head down and his eyes drooping closed, so he didn't really know if he was going the right way or not.
Knuckles ended up, unknowingy, following his nose by the smell of baking bread. His stomach growled again, as it had been all day, but he'd ignored it for so long he'd gotten used to it. However, when he looked up to see where he was going, he lost the strength to continue doing so. Knuckles was at the door of a large bakery.
"No..." he said to himself. "No... no no no... nonononononono!" He backed away some, and his gut roared. "No... I can't... I won't!" He looked down to his still plump stomach. "But... I'm so hungry... No, I gotta lose weight... but I'm so hungry... I'll lose what respect i have for myself... but... I'm SO HUNGRY!" And with that he went inside.
Though the bakery was slightly occupied Knuckles didn't care. He went right up to the counter, were a wide variety of cakes, doughnuts and other pastries were on display. He slammed a handful of dollar bills onto the table and said, "Gimme every cake and doghnut you've got!" The bewildered cashier woman only took the money and went to put in the order. Knuckles walked over to an open table in the corner of the room and waited.
It was a long wait, but just as Knuckles was about to start eating the table waiters began bringing over cake after cake and box of doughnuts after box, almost never ending. They even had to spread out their efforts to put stuff on other tables there was so much. Knuckles couldn't believe how much he saw in front of him, making him completely forget he was trying to exactly not do this anymore. Once all the cakes and boxes had been brought out Knuckles, with a smirk, got to work.
He first went for the doughnuts, eating one after the other, just a train of them from the table to his hand and into his stomach. It went, at first, one by one. Soon it was two at a time, then three. But by the time Knuckles was on the 38th box of doughnuts he was cramming as many in his mouth as he could, which was about eight at a time, chewing them only a little, then gulping them down. Once he was finished with them almost 70 empty boxes lay on the floor behind him, but he wasn't done. Knuckles was still hungry, but he didn't wonder why or how that was possible, he just knew he wanted more.
Then he dove into the cakes, again just grabbing huge chunk after chunk from whatever he could reach. He would shove it into his mouth, smearing quite a bit of icing on his face in the process, and force it down his throat as a huge lump going down his neck into his fat chest. He didn't care that he was being a slob with his food, he even would scrape up scraps on his body and eat that as well.
Cake after cake dissappeared into the red glutton. His belly continued to bulge outward, well out past his legs and on its way to the floor as Knuckles continued his gorgeing. Belching became a constant between bites and swallows now as he continued to scoff down more and more. By now everyone that had been there had left, somewhat disgusted, but this did not bother him. In fact it allowed him to eat more freely, meaning more messily and belching a lot louder. He even allowed himself to release gas from his wide rump, causing the still on-the-job cashier to gag, though she was several meters away.
When he was all done, far more stuffed than last line and almost emptied of his gas, his belly was extremely tight and just barely grazed the floor as it now pressed against the pole that connected the table to the floor. His shirt and pants had torn off long ago, and he didn't see them anywhere, so he assumed he accidentaily ate them too, but he didn't care. Knuckles stood up, accidentally farting again, and sighed. "That was good..." He lugged himself towards the door, still scraping off chunks of icing that still covered his face, chest and gut. He didn't care about the looks he got when he got stuck momentarily in the door or as he walked down the streets, the bloated echidna still burped and licked the food remains from himself without hesitating. He waddled into his hotel room and went straight to his bed, not the couch this time. Knucles sunk into the plushness of the bed and he sighed happily before falling asleep.

The next morning he awoke with a headache. Knuckles, eyes closed, slid from his bed and landed with a loud thud on the floor. With a grumble and yawn he once more went to wet his face, but once he did this and looked in the mirror he almost fainted.
Knuckles had widened again, his belly sagging far over his enourmous legs, bulging outwards nearly 3 feet as well. His previously saggy chest had inflated into almost full grown boobs, further making the cresent look strange as they sagged over his gut. His arms had also doubled in girth, now with his upper arm rolling over the flab of his lower arm. Knuckles' legs were in the same boat, with his knee almost gone due to the fat rolling over it. As he turned around he also found his back had formed many rolls of its own, but thats now that made him scream in horror. His butt had bloated out more than ever, sagging almost all the way down to the back of his knee and it was just as wide as his massive legs. His tail, though being swallowed up by his rump, also had started forming rolls of flab as well.
Knuckles didn't know what to do, or think. He jumped onto a new scale the hotel had brought him and waited for the digital display to give him a number. It blinked once, twice, three times. Knuckles gulped, for it was calculating for a much longer time than before. But then it stopped and showed a number.
786.
Knuckles exploded with anger, but grew even more furious when it grew to 787, then 788 within five minutes. Again a stream of incomprehensable words, curses and jibberish escaped his face, now adorned with large fat cheeks. By the time he had finished the number had jumped to 800.
"WHAT IS GOING ON?!" he finally bellowed. Then he started to think. It couldn't be the food alone, so... "Of course!" Knuckles realized. "It was that gel Eggman attacked me with!" He roared with rage. "I'M GOING TO KILL HIM!!!" And in his anger he grabbed his belly as tightly as he could, as if he were going to tear it from his body.
Suddenly his rage faltered. He grabbed his belly again, and tilted his head. Strangely to Knuckles' fury completely melteded away just then. He gave his moob a grab, since they wer big enough for his entire hand to grab, and surprisingly he went "Oooohhh..." Then he turned around and wagged his butt a bit in the mirror. The two large balls of red jelly bobbed up and down endlessly. Knuckles grinned.
"Hmm... actually... this is kinda, cool." He posed in the mirror. "Ooo, wow..." He posed again. "Dang..." He grinned at himself. "Wow...!" He sighed and smiled. Then he got an idea, and it made him grin widely. He went right to the phone and dialed room service.
"Room service. What would you like?" asked a voice.
"Everything you've got!" Knuckles said.
"E... everything?!"
"Yes!" Then Knuckles blushed. "I'm... having a... very big party and I need this quickly, so hurry it up!" And he added, "I'll give a tip of 100 dollars to everyone there if you get it to m- room 2830 within the hour."
"Y- yes sir! Right away!" There was a squeal of excitement and the line went dead.
"Haha. People and their money." Knuckles hung up and began to make the room seem like no one was home. He then hid in the bathroom, locking the door, and waited for his food to arrive. It was only a half hour later that he heard his door open and carts being rolled in and people pushing them. He heard some wonder where the person that ordered all this was, but no one really cared, they just talked about their tip before exiting.
Knuckles made sure it was completely silent before he came out and turned on the light. His mouth fell open at the mountain of food that sat on the table before his TV, and the seperate hills that sat around it and the couch. He drooled quite a bit then, his drool running over his second chin.
"This... is going to be fun..." he said to himself and reached for a large hamburger.

It was the next day when he'd finally finished all his food. Knuckles lay sprawled out on top of the remains of the table that the mountain of food once was on, completely covering it. Groggily he sat up, rubbing his head. "Urg... what happened last night...?" He groaned and opened his eyes, only to come face to face with a pair of enourmous boobs. "Wh... huh?!" He quickly stood up, and gasped to find that his belly stayed on the ground. Even more than that, it spread across the ground several feet in front of him. His moobs sagged more than a meter down the left and right side of his belly. Knuckles soon noticed that his forearm had further enveloped his plush lower arm, of which had begun to roll over his white gloves.
He then waddled into the bathroom, straining at having to hold up his belly to move better. Knuckles turned around and grinned. His butt was more massive than before, blobbing far over the back of his legs, almost to the ground even. It further swallowed up his even blobbier tail though, but he didn't care. It only meant more of his butt was visable. Then came the moment Knuckles had waited for. He stepped onto the scale, of which he couldn't even see. He began to plow through his belly, and found it extremely soft and malliable. He parted it and pushed it in enough for him to just barely see the number.
Knuckles grinned widely, for the scale read 'ERROR'. He got off and picked up the scale and turned it over. He found a sticker where it said "Max Weight: 2000 lbs (Pounds)"
"YES!" Knuckles shouted. "I am a real big sexy fatass now! Yeah!"
"I'll say..." came a familiar voice. Knuckles blushed a deep shade of pinkish red and turned around to see Marcus at the doorway."
"Uh......" went Knuckles.
Marcus only said, "Dude..."
"WHAT ARE YOU DOING HERE?!" Knuckles demanded.
"I'm supposed to clean your room and I heard something... went to see what it is... and..."
"Y- you found a disgusting blob..." Knuckles asked, becoming absolutely embarassed.
"No..." Marcus dropped the bottle cleaning solution he was carrying. "I found a huge sexy echidna... with the biggest butt i've ever seen... it's just so hot..."
"Oh..." Knuckles blushed a bit more, then it went away as he smiled. "Wanna help it get bigger?"
"Boy would I!" Marcus shouted. "But, it'll have to wait until my break, so i'll see you later." He began to walk away, but he turned back and added, "Sexy," and winked, then left.
Knuckles turned back to his reflection in the mirror. "Yup, it's official." He hefted his boob-like moobs. "I love being a fatass."







Yup, Knuckles fattening story.
I COULD ADD A SECOND CHAPTER IF YOU ALL WANTED!!! JUST SPEAK UP!!!