Viktor was ravenous with hunger. His empty stomach rumbled loudly, demanding a meal. At this point, if any creature let him notice it, it would practically be signing its own death sentence. Unfortunately for a certain Jolteon, Viktor noticed him. The Jolteon was walking upright, lost in thought and unaware he would soon be lost in Viktor's belly as well. Viktor began drooling in anticipation of the meal. He didn't care how strange the Jolteon looked with his long, black clothes, cape and tophat or that the Jolteon was walking upright: he only saw food, and was intent on getting it into his belly as soon as possible.
He ran for the moustached Jolteon from behind and pounced him. The Jolteon cursed as he landed face-down with Viktor on his back. Viktor was going to begin his meal when a powerful current ran through him and he was thrown off the Jolteon's back. His muscles convulsed with the shock, and he was having trouble getting back up again. Meanwhile, the Jolteon stood up, brushing the dirt off his clothes.
“Pleasure to meet you, good sir,” he spoke. “My name is Roco. Is that how you usually greet someone, or should I feel honoured to get this special treatment from you?”
Viktor scrambled back to his feet. “I'm hungry...”
“I did not ask you how you felt, I asked you if that is the way you usually greet others. If you were hungry, you could have asked me for food instead of pouncing me. But I'm afraid I do not carry any food on me today.”
Viktor grinned hungrily. “You didn't look very well, then, because I see a big, tasty meal...”
“You must have observational skills beyond those of mere mortals such as myself. I suggest you eat this scrumptious feast you say you see, then.”
“Don't worry, I will...” Viktor was wondering what the best way to attack Roco would be. Simply gobbling him up was no option, as Roco would electrify him. He fired an Ice Beam at Roco, but he had underestimated the Jolteon's speed and reflexes: he waved an arm with an elaborate flourish and produced a spark that parried the Ice Beam.
“You are not entirely stable, are you?” Roco asked with an eyebrow arched.
Viktor was not in the mood for this. “I'm hungry and you're food, so get in my belly!” he fired more Ice Beams at Roco, which were all dodged or parried.
“I have no desire to be eaten, nor am I food. I am clearly more powerful than you, therefore I would advice you to give up this charade before you get hurt.”
Viktor recognised Roco's reflexes were just too fast for this, so instead he summoned large clouds of frigid cold to freeze him. Howling Antarctic winds surrounded both of them and pelted them with hail, though it felt quite pleasant to Viktor. Non-ice types usually didn't last long in temperatures far below zero, so this should quickly incapacitate Roco.
But suddenly Roco jumped from one one the icy clouds, grabbed Viktor and shocked him powerfully, knocking him back and making every muscle in his body convulse painfully. He lay on the ground in pain from the shock as Roco calmly stood up and wiped the snow and ice off his clothes. “You have made quite a serious error in attacking me,” Roco spoke as he gestured dramatically. “In doing so, you have forced me to become quite annoyed with you, as well as to realise I am quite hungry myself. Another mistake you made is to attack a fellow – negative connotations though the word may have – cannibal. I think I shall take your unprompted attack upon me as an act of volunteering to be my lunch.”
Viktor tried to get his convulsing limbs under control with horror. The screams of his own prey as they digested echoed ominously through his mind. Never! He thought, anything but that, I won't be eaten!
“I can see the fear in your eyes. Perhaps you think I am malicious for doing this, but I am merely going to do unto you what you tried to do unto me. It is your own fault; you could have expected this when you attacked Roco, time travelling Jolteon par excellence.”
Roco was getting so overly dramatic that he had now even turned his back to Viktor for a few moments as he talked. Viktor saw his chance to avoid finding out what the inside of a stomach looked like and managed to get his convulsing muscles under control. He shot an Ice Beam in the small of Roco's back, got half up and fired more. Roco lay on the ground groaning in pain, and Viktor jumped on top of his back and followed up with an Ice Beam to the back of his head. But Roco had fight left in him and struggled to get the cannibalistic Glaceon off his back. He succeeded in turning around, but the several Ice Beams had weakened him a lot. Viktor fell over his face and felt Roco's nose poke on the outside of his stomach, which responded to this by rumbling loudly.
Viktor chuckled. “Yes, that's exactly where you're going. Now stop fighting, there is no use. And besides, it's warm in my tummy!”
“I'm never going in there!” Roco bit into his fur and shocked him, but this time the electricity was much weaker.
Viktor sat up again. “Wrong.” Powerful blasts of icy cold flooded over Roco until the Jolteon finally stopped struggling, still alive but too weakened to fight back. Ice crystals hung in his fur and he mumbled softly in protest. “I'm sorry I had to cool you down. Fortunately I know this great place you can warm up in...”
He opened his jaws wide around Roco's head, enjoying the terrified expression in the Jolteon's eyes as he looked into his throat. Viktor licked his prey's face and loved the taste. “Yummy yummy, you go into my tummy!” he said with childish glee as he began swallowing Roco's head despite his weak protestations. His throat expanded to let the prey's head through as he opened his mouth even wider to let Roco's torso in. His clothes tasted pretty bad; Viktor should really have taken them off before nomming, but at least the hat had fallen off. He kept swallowing Roco and moaned in joy as he began arriving into his stomach, filling and expanding it by a lot. Soon he slurped the Jolteon's feet down and sat down to enjoy his tummy's fullness.
He let out a satisfied burp and put his front paws on his big round belly, shivering in delight at the touch. He slowly rubbed his belly, helping his stomach knead the insides. It felt wonderful to have another living creature in his tummy, and once Roco started warming up again he delighted at his every move in there. He heard the Jolteon's voice come out of his tummy several times, but couldn't understand a word of it over the loud gurgles and groans his tum made.
Finally, after about half an hour, Roco had regained enough of his strength to electrocute Viktor. At least, that's what he tried; Viktor only felt some minor stings. Like most predators who swallow their prey alive, his stomach was by far the toughest part of him and there was little a prey inside could do to cause him discomfort.
“Spit me out!” Roco's voice came from inside, interrupted by loud gurgles. “There is something you don't know about me!”
Viktor grinned and patted his softening gut with the Jolteon struggling futilely on the inside. He loved it when his prey began begging him for mercy, it made him feel even more superior. “Oh, really? You have a mate and cubs then, I take it? Or some horrible disease that will infect me?”
“No, I am a time-traveller. Do you know how dangerous it is to digest me?”
“Oh?” Viktor sarcastically asked. “Will my stomach go back in time to being an Eevee's stomach, mr. Time Traveller?”
“It's worse than that! Most people's personal timeline is a simple line from birth to death following the timeline, but mine is a complicated knot intersecting the timestream! If you digest me, one of the ends of my timeline, being the end that's attached to me, will suddenly come undone, which could have disastrous consequences.”
Viktor was impressed. “Wow, you're quite original, aren't you? I've honestly never heard that story before.”
“That's because it's a true story. It is in everyone's best interest for you to let me out.”
Viktor laughed and patted his belly. “I said it was an original excuse, not a good one. You're staying in there.”
“Listen to me, you're making a terrible mistake! Do you have any idea of what the consequences could be if you digest me?!”
“Yes, I will get quite fat, probably.”
“You'll be lucky if there's a you left to get quite fat! If my personal timeline comes undone it will snap out of the knot it's in violently, causing horrible timey-wimey things to happen! The main timeline itself could even follow suit and become all garbled and knotted up like a marmalade baby, except made of time and not a baby! I implore you to let me out!”
“Do you really think this will save your life?”
“I'm not trying to save my life. I'm trying to save yours. Because whatever happens, its epicentre will be right here in your stomach. Maybe my timeline will tear your inner organs away from you and hurl them into the past when it comes undone. Maybe it will become curled up inside you, making you age to your death within minutes. Maybe both of us will get torn from the timeline entirely, erasing us both from history entirely. Maybe something else will happen, who knows? These things are hard to predict. But unless you want to find out first-hand what could happen, I suggest you let me out!”
Viktor considered this. Roco sounded as if his concern was sincere, but then his concern for Viktor's tummy juice was probably very sincere. Roco changed his position inside Viktor's tum and the Glaceon shivered with delight from the movement. He was just going to take a chance, because he was not letting his prey out. “You tell some interesting stories. But once someone is familiar with my belly walls, there is no escape. You're going to be digested to pudge, and there's nothing you can do about it.”
That made Roco furious. He struggled mightily, making Viktor's meal even better. “Stupid, arrogant fool! You endanger the entire timeline with your thickheadedness! If the backlash gets really bad, all dimensions could twist, making length width, width height, height time, and time length! One would age years simply by walking forward and would continually become longer! All because of your arrogance, you could doom everyone! Please, let me out!”
Viktor purred and rubbed his big, struggling belly in delight as Roco slowly digested inside. Then, suddenly, it felt as if a bomb exploded in his stomach. He saw tenor, heard bitter, smelt green, felt smoke, and tasted cold. Suddenly he was in his own stomach, feeling himself struggle inside as he struggled to get out of the stomach he was in. Then things got weird.
–
'Knotted' barely described Roco's personal timeline, in fact. It was more like a bowl of spaghetti, except the various strands were tied to each other, made of elastic, alive, crawling out of the bowl in an attempt to win freedom, and not shaped like spaghetti but more like ice-cream cones with a V-shaped bite of them inverted. But now his timeline had been cut loose and snapped back into shape with a loud elastic crack. Roco's consciousness, about to disappear forever as he was digested was pulled back and thrown through the aeons, to an earlier point of life, where he awoke a very confused Eevee with some bizarrely conflicting memories and a bad headache. But that was not the whole story: though most of his timeline remained intact, bits and pieces of it were scattered over the timeline and caused some interesting changes, like a couple of early hominins which were instantly transported to Mars. The poor cavemen didn't last long in the oxygen-less atmosphere, but their fossils gave scientists quite a massive shock when they were discovered on Mars in the 27th century.
Quite a large part of Roco's timeline, twisted like a crazy drinking straw, broke off from the rest and bound itself to the nearest thing it could find: Viktor's stomach. It twisted itself around the stomach and the main timeline, tethering them to each other. Under normal circumstances it was tethered to the timeline anyway, so Viktor didn't really notice anything, but there were two important changes:
First of all, thanks to the relationship between space and time, the timeline coiled around Viktor's stomach makes it impossible for anything to teleport in or out. More importantly, it meant that if his stomach ever ceases existing, which usually happens when he is digested, the timeline wrapped around it searches nearby parallel universes to find an alternative Viktor who never was digested and pulls him into this timeline. What's left of the recently-digested Viktor's memories enters his head and makes him a very confused Glaceon with two conflicting memories of the previous day. But since he is obviously still alive and undigested, he assumes it was just a nightmare and continues life without realising he was just digested.
–
Viktor opened his eyes and was delighted to see the world back to normal again after all the... After all the what? He was sure he had been terrified and weirded out just a moment earlier, but now that he thought of it, he couldn't remember what by. Something really strange and unsettling had happened, he was sure of it, but now he just couldn't remember. What was the last thing he could remember? He had been ravenous with hunger, looking for prey, and then... Then he had opened his eyes delighted to see the world normal. He tried to stand up, but was weighed down by a large, soft belly. That took care of the hunger, then. Maybe the belly's contents would know more. He prodded his belly and felt it was really soft. Not much point asking whatever was in there, then. What was in his tummy anyway? He couldn't remember, but his belly didn't get that big on his own.
He decided not to worry about it. Whatever was in there, it had filled his belly greatly and he was just going to close his eyes and digest it.

--

A little story based on an idea  Roco and I had which explains both what happened to his old pokésona and how I got my time-travel based reforming powers.