The Poffin Experiment

Story by Kuney on SoFurry

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The Poffin Experiment

By Kuney

Dedicated to Melly.

Story was partially inspired by this picture.


A/N - This story involves a female human and a male Sylveon. The contents involve stuffing, a big belly, weight gain, cock/ball growth, stomach sounds, experiments, cum swallowing, and heavy petting. There is no sex.Cozy Mode viewing is recommended. ;3

This story is fetish fuel.

Also this story talks about Pokemon berries, poffins, and Pokepuffs. If you have zero idea what those are, I recommend reading this next part. There are also very, VERY minor spoilers about Pokemon X/Y, but is in no way related to the plot of the story.

Pokemon Berries were introduced in Generation II, or Gold/Silver. More berries over the course of every game since has added more.

Berries have all sorts of effects. Some restore health, some restore status (like burning, poison, etc.), others grant temporary buffs such as increased defense and attack. In Pokemon X/Y, shortly after you get the first badge, you can visit the Berry plantation and plant several berries, let the grow, and harvest them. You can also convert berries into mulch and create hybrid berries by planting berries in the mulch and letting them grow. This is a basic description, but I think I got enough info down

Poffins are made from blending berries together. The result, somehow, is they become healthy muffins. Go figure.

PokePuffs are a new item added in Pokemon X/Y which increase the friendliness/trust of the Pokemon towards their trainer. Pokepuffs are small little cakes, decorated with all kinds of things from frosting, cherries, sprinkles, mint leaves, etc. I don't want to spoil too much about them for those that have yet to play the game.

I'm going to try a slight difference in writing just to see how it works. If things go well for me, I might carry out more ideas like it in the future.

I've also added a few links into the story over the Pokemon I discuss, as well as some stomach sounds which will happen fairly late into the story. Yay for interactivity.


The cool crisp air was always inviting to Tali, the Pokemon Trainer from the Kalos region. She stood on her porch, hands on her hips, doing various stretching and other exercises to get the blood flowing. Tali was raised a farm girl so raising up to the rising sun was nothing new. Currently she was on vacation after journeying for several months across the Kalos region, as well as Hoenn. She did plan to tackle the Kanto and Johto regions sometime before the year was out. Another part of her wanted to settle down for a while on her Grandfather's Berry plantation, or rather, her plantation now. She regarded the old sign down the road to her right, dangling above the entrance to the property labeled as 'Grass Roots Berry Plantation'. Tali began to work a bit of a sweat with all her stretching but also found it relaxing in its own way. After rotating her head and neck a few more times, Tali let out a relaxed sigh and made her way down the steps of the porch and towards her plantation. The plantation itself originally was a lot bigger and had a great history to it, or so Grandfather said before he passed away.

But times had changed and things got a little harder to keep up with his old age. He sold some of the land but kept the rest for himself. Even with the property loss, the plantation itself was still a respectable size and Tali could easily grow and support several rows of berries of all kinds without it being too much work. Most berries harvested were turned into poffins while some were kept for the plantation itself. Tali had a small stand near the entrance to the property, using it to sell poffins and berries to trainers passing by. Berries could also be harvested by trainers who were after specific kinds. Seasonal and rare berries required careful planning to maximize profit, something Tali had barely grasped, even as a trainer.

The walk through the rows of berry plants brought a smile to Tali's face. Fond memories surfaced which reminded of her of coming to the same plantation years ago. The rows of berry plants she passed aligned perfectly in neat rows, maximizing space for more harvest yield. The fresh scent of mulch reminded her she would have to make more very soon. Her eyes darted from left to right, checking to see what was ready and ripe, and what wasn't.

'Oran berries are ready, Lum berries aren't....looks like the Sitrus berries are ready...' she went on in her mind, making a mental checklist on what to prepare for.

Her walk ended when she stopped at the far end of the plantation where an old shack was. The rustic old thing brought plenty more good memories to the front of Tali's mind. She reached into her pocket and produced a small set of keys. Force of habit made it easy to find the only key that would unlock the door and into the shack. After fumbling with the lock, a soft 'click!' was made. Tali motioned inside from the cool morning air to the stale, dry atmosphere inside the old building. To her left was Grandfather's rusty old tractor. It clearly had seen better days but Tali could find no reason to get rid of it, even if wouldn't turn on. Her hand trailed behind as she let her fingers play across the old tractor, wiping dust away in the process. She gave a good hard pat to the giant rubber tires before moving on to the back of the building. Berry harvesting was fairly easy and didn't need a lot of tools to work with. The very tools Grandfather used were hung before her, showing their age but also the experienced hands that used them. Sitting on the workbench next to a bunch of old buckets was her Grandfather's journal. Inside was a plethora of information detailing everything from berries, how to grow, when to grow, mulching, recipes, thoughts, ideas, and general things that could easily be chalked up to an experienced farm hand.

To Tali, it was one of the most important things in her life and she made sure to take care of it every time she flipped its pages. She did eventually get around to copying things that caught her eye or interested her but still found the journal itself to just be so valuable. The journal also brought about the spark of inspiration within Tali to try to create her own berry recipes and experiments.

And speaking of experiments...

Tali's eyes wandered to the semi-hidden door below her feet that lead to the hidden area below the shack itself. 'After work', she chastised herself, grabbing the last of the buckets she'd need before making her exit. She was eager to get back to experimenting!

After gathering all the buckets together and setting up the tools against the shack, Tali surveyed that lay before her with a swelling sense of pride. After a deep inhale and exhale, Tali inserted two fingers into her mouth, letting forth a harsh whistle that shattered the silence of the plantation. The sound echoed throughout the land followed by the returning silence of the morning. Tali suddenly turned around and looked up, finding her Noctowl just landing atop the shack. The second to arrive was Butterfree who also perched next to Noctowl. Tying for third and fourth, unsurprisingly, was Lairon and Hydreigon. Both were looking at each other and growling but she could easily tell they were far from actually fighting with one another. Tali just facepalmed at their shenanigans, but smiled shortly after. Those two seemed to have a weird rivalry, always trying to one-up one another, always trying to outplay each other. She figured it was a friendly competition between the two...er...four...two? She never figured it out either. Her hands went to pat their head(s), wishing them all a good morning. Both (?) Pokemon smiled at their trainer as they spoiled with pets. Butterfree roosted on Tali's shoulder, nipping at her ear gently in the form of a greeting. Tali returned the favor by rubbing a finger gently on Butterfree's head. Butterfree nuzzled into the fingers before a large sound stopped everyone what they were doing. Both Lairon and Hydreigon assumed battle stances, ready to take down any threat.

The threat was Blasty the Blastoise , shuffling his way out of the pond slowly. Blasty was never much of a morning Pokemon, even as a Squirtle. Both battle prepped Pokemon relaxed after seeing Blasty come into view. "Sleep in the pond again, Blasty?" Tali half-joked, patting his head gently. He sat down abruptly with such force it shook the land around him and looked as if he was ready to go back to sleep. Tali suddenly braced herself against Lairon (which didn't go unnoticed by his rival).

Tali looked around after the small event, counting five Pokemon. "Now where's...? Oh." She saw the sixth, and last Pokemon to show up -Sylveon. He looked exhausted and out of breath. Tali grew concerned and was about to ask what was wrong when Sylveon plopped on the ground, too exhausted to carry himself any further. His belly poked out between his legs, far more than it normally should. 'So that's what happened.' Tali smiled inwardly yet maintained a poker face, 'Looks like we finally made progress.' She came forward, rubbing Sylveon on the head gently to soothe him.

"He's okay," She announced to everyone, "He just pigged out on some of some poffins and now he's got a tummy ache. I'll carry him into the shack and see if there's anything in my Grandfather's journal that might help ease his stomach." All her Pokemon nodded to her words. They could all agree, even Lairon and Hedreigon, that she made very good poffins. "You guys go on ahead with harvesting the Oran berries. I'll be done shortly with Sylveon." She looked over at Blasty, "And Blasty, no snacking on the berries this time! It'll ruin your lunch." Blasty just rolled his eyes, yawned, and motioned over towards the first bit of berries. It's not like she'd miss a few (dozen) berries.

It took some effort to lift Sylveon over her shoulder, but with some minor help from Butterfree made it easier. She thanked him then moved carefully into the shack. Once they were out of earshot Tani's soft smile grew a little wider. "Okay Butter, we're alone now. I'll get you down into the room and we can talk a bit, okay?" Butter the Sylveon just let out a small 'urp!' as a reply.

Tali took easy steps as she made for the back of the shack, stopping only to lift up the hatch that lead into the secret part of it, as well as grab her grandfather's journal. The secret room looked almost as old as the shed itself. The paint was chipping away and falling from the walls but was otherwise kept relatively clean. One side of the wall was flat but covered in papers of ideas, recipes, and observations that she had made during her last couple of months experimenting with berries.

On the opposite side of the wall was something she simply dubbed 'The Berry Bench'. Various pots and pans, some cooking utensils, two hot plates, and a cabinet all hang in a row. A long temperature-controlled freezer nestled in the corner next to the Berry Bench. Inside the freezer was small bags full of berries she kept cold, and two stew pots with the last two samples she created to feed to Butter. On the other side of that wall, under her Grandfather's tractor, was where she kept some buckets of berries to dry out. Drying out some berries added an interesting flavor and she capitalized on it. At the far end of the hall where the doorway lead to the berry drying room was something oddly out-of-place - A box spring mattress that was held supported by beams coming out of the walls below it. Tali gently laid Butter on the mattress and allowed him to get comfy for a moment. She smiled, rubbing along his fat belly and scritching along his soft fur. Butter began to purr, kicking one of his hind legs in response to being spoiled just a little. Tali stopped, much to Butter's dismay, and picked up a clipboard she had kept on the Berry Bench.

"Alright Butter, which Poffins did you try?" She gestured with the clipboard that showed the numbers one and two. Butter didn't hesitate to gesture with his prehensile ribbons, poking the number one...followed by number two. The gesture made Tali raise an eyebrow curiously, "So wait, you wait both batches?"

Butter just nodded then let out another small 'urp!'.

"You were only supposed to eat one batch," She sighed out, scribbling something down on the clipboard, "but I guess this is a result regardless." Her eyes looked down to detail on Butter's weight gain. His hind legs look somewhat thicker as well, but the front legs looked the same. The only real difference was his gut which was a lot bigger than it was two days ago. In fact two days ago he looks pretty normal. She got on one knee, putting her ear right up against his soft tummy. She detected the sounds of his heartbeat and the occasional soft sound of his gurgling stomach. Thankfully nothing sounded like anything was wrong, much to the relief of Tali.

Tali turned around, leaving Butter alone for a moment as she looked over her information attached to the clipboard. Some of the things she saw didn't make sense but she wouldn't believe it either if she hadn't seen it for herself. Her thoughts were interrupted when she felt something poking her from behind. Butter was using one of his ribbons to get her attention, then used both of his prehensile ribbons to make a gesture of writing with pen and paper. It took only a moment for Tali to register what he was trying to say before granting the request.

One thing some people never grasped was that Pokemon are smarter than they look or what people credit them for. Butter, with no outside help from Tali, had grasped the English language without flaw. It was just a bonus that he could use his prehensile ribbons to communicate. Some trainers could understand their Pokemon if they spent enough time with them however Tali had yet to really pick up much of the language any of her Pokemon spoke.

Butter flipped the clipboard around and displayed the message, "Bigger this morning. Lost most it."

Tali read the clipboard twice to make sense of what he had written down before speaking, "So let me get this straight." She paused briefly before continuing, "You ate both batches, gained weight, and now you're just burning all the fat just like that?"

Butter nodded.

Tali leaned against the wall, rubbing her chin thoughtfully. These turn of events confirmed everything three times over, but further fueled Tali's reserve.


About two months ago when Butter evolved into Sylveon she got a comment from a couple of her friends that Butter looked malnourished. Not one to take a serious accusation as malnutrition lightly she took Butter to the Pokemon Center not far from her plantation. Truth be told she saw one other Sylveon, more of a passing glance really, so it was difficult to gauge what was healthy and what wasn't.Nurse Joy was at the counter as always, wearing that cheerful and warm smile. Tali was rather blunt in explaining her situation which brought concern to Nurse Joy's face. She lead both trainer and Pokemon into a small room that was similar to a Doctor's office. Nurse Joy came in afterwards with a clipboard and a stethoscope. Tali sat close by, watching Nurse Joy do what would be considered a standard check-up for that of a human. Next she had a Chansey bring in a small weighing machine which Butter stood on for a brief moment. After Nurse Joy took a painless blood sample, both Chansey and nurse left the room.

Despite Tali's decent poker face, inside she felt torn apart. Was she not feeding enough, or was it not the right food? Her eyes looked at Butter's form, which looked picture perfect in her eyes. He was happy, he was content, and he didn't vocalize any issues to him at any time. Was he scared of being abandoned? She'd never do that!

Tali's thoughts were interrupted when Nurse Joy entered the room with the same clipboard as before. Tali, full of dread, asked, "So....how is he, Nurse?" Nurse Joy looked at the clipboard briefly before going into lecture mode. "Your Sylveon is underweight. But, it's not because of being malnourished." Tali let out a heavy sigh of relief. "Normally Sylveon are between 49 to 52 pounds. Yours is 43.4 pounds. All blood tests came back negative for any diseases or sickness."

Tali was grateful to hear the good news Nurse Joy delivered. "So what's wrong with him, if anything?" She asked, petting alongside Butter's back casually. Joy simply shrugged her shoulders, gave Tali her trademark smile and said, "All Pokemon are different, coming in all shapes and sizes. However..." She paused to look over some of the paperwork again, "It appears your Sylveon has very high metabolism. While it's not unheard of, it does make a lot of sense."

Tali nodded to her words and now that she thought about it, it did make sense. He did seem to eat larger portions and she had caught him eating a few berries here and there off the plantation. It seemed a simple enough fix.

"Thank you Nurse Joy. Really takes a load off my mind." Tali said, picking up Butter who accepted cuddling up against his trainer.

Nurse Joy smiled and nodded, "I'd say with that you and Sylveon are cleared to go. Come back if you have anymore trouble." Tali swore Nurse Joy was always looking for an opportunity to flash that smile.

Over the next few weeks Tali gave Butter some extra portions of food including some extra poffins. She also had to explain to her other Pokemon the visit to the Pokemon Center and what was discovered. Everyone seemed supportive of Butter, making Tali proud. She snuck a few more poffins everyone's way without either one of them knowing as a simple reward for being so accepting. Butter's weight was monitored daily by Tali. Even with extra portions and poffins, Butter just never seemed to gain any weight. Tali gave up after a month and took Butter to another Pokemon Center. Nurse Joy there said basically the same thing as the one not far from her home. Adding insult to injury, his weight was the same as it was the month before. Joy recommended taking Butter to a Specialist to see if they could possibly help if Tali genuinely felt concerned for Butter's weight.

After leaving the Pokemon Center with Butter, Tali unhooked her bike that was attached to a nearby fence and pushed it down the sidewalk. Butter followed along quietly but could detect unease coming from his trainer. Tali found a small bench, propped her bike against it, and sat down with a heavy sigh. Butter sat next to her, laying his head in her lap. Despite her distress, Tali smiled and began to pet along his form quietly.

Both remained on the bench for the longest time it felt like, until Tali broke the silence with a simple question, "What do you think Butter? DO you think something is wrong with you?" Butter opened his eyes, staring straight ahead for a moment. His eyes then rolled upwards and aimed right at Tali's, giving a brief nod.

Tali felt genuinely hurt by his answer. She felt like she had failed Butter and failed herself as a trainer. She scooped up Butter into a hug, hugging him tightly to her form, trying to find words to redeem herself. Words failed her.

'I won't cry. I won't cry. I won't cry..." She repeated the mantra in her mind.

"I'm....sorry." Tali spoke softly, almost barely above a whisper. "I...I will fix this." Her hug loosened up, her face close to Butters, "We'll fix this. Okay?"

Butter looked into Tali's eyes, seeing a fierce determination that he had not seen before. His tongue graced across her cheek as his answer. They'd fix this.

Together.

Butter didn't see the single tear roll down Tali's cheek.


From then on, in secret, Butter had sampled all kinds of poffins, berry combinations, and recipes Tali had cooked up. Tali went so far as to start planting out-of-season berries in pots. Very few of the recipes she tried, most of which originated in Grandfather's journal, had produced next to no results. One result, Tali will never forget, was Butter couldn't stop vibrating his whole body for almost a day. His whole body shook to the point where a subtle, "Vrrrrrrrrrrrrr~" sound was created.

All in all, it brought them to where they now were.

Butter shifted, raising himself until his upper body was up against the wall behind the mattress. His gut shifted and pushed down, forcing his hind legs apart. Tali meanwhile, was looking over her Grandfather's journal once more. Her attention shifted back to him when he tapped on the clipboard again.

"Side effects.", was the new message scribbled on the piece of paper.

Tali took a glance at the clipboard, then Butter, "What kind of side effects?"

Butter's eyes looked away from Tali, his face glowing slightly pinker than normal. His front paws moved up and down his gut cutely before his eyes traveled back up to Tali who just giggled. "You can show or tell me, Butter." She assured him, even going so far as to get on one knee to add more action to her words, "If it's a side effect that could have serious consequences, I really need to know, okay?"

Butter looked away again, kneading his gut with his paws again in a poor attempt to buy some time. Tali giggled at his embarrassment, but said nothing else. Butter's prehensile ribbons moved the clipboard aside and then under his gut and lifted it with ease.

Tali backed away in surprise, landing on her rear as something just flopped out from under Butter's gut at high speeds. Sitting proudly under Butter's gut was his sheath and sac, both unnaturally large and bloated. His sac swayed heavily under his sheath, holding a pair of testicles that could easily be the size of two Pokeballs. Her nose detected a faint, sweet musky smell coming from them. Tali got up slowly as she ogled the impressive set of equipment that hung unnaturally under her Pokemon's gut. It was hard to imagine how he managed to keep everything hidden.

"Well now, this is..." Tali was honestly, shocked. She figured it was something far worse and yet here it was, pointing up at her face and throbbing. She had, indirectly, created Pokemon Viagra. She could just sense her Grandfather rolling in his grave. "Ahem, well now, this is a bit of a side effect, Butter."

Butter lowered his gut over his goods. A small dent at the bottom of his gut was the only hint of what it hid while his testicles still dangled along the side of the mattress.

Tali picked up the clipboard, using all the limited professionalism she had accumulated and began to write observations. Inside, however, she was ashamed to admit she was eying Butter like a horny schoolgirl, even if it hadn't been the first time she had seenhis reproductive organs.

'Butter's reproductive organs have grown after eating both batches of poffins. In addition he has gained several pounds, so much in fact, his gut drags along the ground barely. Butter claims he was a lot fatter than before but his high metabolism has almost chipped away at his newfound weight. Recommend isolating which batch allowed rapid weight growth.'

Tali looked left and right, as if she were trying to not get caught. . .

'Make plans to sell Viagra to breeders.', she scribbled down last.

After setting aside the clipboard and gathering her thoughts, Tali smiled (poorly) down at Butter, "Alright Butter, you can sit there and rest. I need to get back up into the field and help everyone pick berries. I bet everyone is wondering what I'm down here for so long and not helping them. After we're done with the harvest for the day, I'll come back down here and we'll take it from there okay?" Butter lazily nodded, but still couldn't like Tali in the eye. It was something she found strange, but didn't think too much on it.

Tali turned away quietly, leaving Butter alone in the secret room.

By the time Tali stepped out of the shack, it seemed her Pokemon just got done harvesting the Oran berries. She stepped forward, and began to help her Pokemon with the harvesting. It was easy to tell that Tali was distracted, something her Pokemon noticed. Butterfree bravely approached her, knocking Tali away from her thoughts. It didn't take much to see it in her Pokemon's eyes, all asking the same question.

Tali wouldn't dare tell them the truth, but also wouldn't lie to them.

"Just worried about Sylveon is all. He'll be okay though." She said with a small smile. Blasty, Butterfree, Noctowl, and Lairon seemed convinced. Hyrdeigon however did not. His three heads pushed forward into her chest in an attempt to comfort her. Tali hugged Hydreigon's middle head, patting it gently.

"We'll go see him later if he feels any better, okay?", the trainer bargained, hoping to buy herself some time. Hydra nodded in confirmation before going back to help with harvesting.

The rest of harvesting time went off without any other issue.


The sun had risen slowly in the sky as the day progressed. Both human and Pokemon worked throughout the day, plucking berries, replanting them, using mulch, watering them, and warding off any wild Pokemon that decided to snack on the berries or roost. Tali stretched her arms and back as the last of the buckets were stacked neatly. Two buckets were aside to be dried under the shack while the rest would be used, sold, or eaten.

Lunch time provided Tali and her Pokemon a moment of rest before heading back outside. Tali settled for a nice sandwich while the rest of her Pokemon ate berries, poffins, and some store-bought food. She hated buying store brand Pokemon food. She would prefer to make her own, but couldn't seem to get it down right, even if she was very good at cooking poffins. With the day basically free of chores, Tali made her way back to the shack carrying the bag of store-bought Pokemon food. A small cardboard box was carefully balanced atop the food, giving no hint of its contents.

Judging by the snoring she heard through the floor, he was napping. Sure enough after motioning down into the room there was Butter, his back still against the wall while he snoozed on. What surprised Tali was his gut had gotten smaller over the course of time she had been away. It also supported his earlier claims about being much bigger earlier. Tali's eyes traveled downward to what had been the distracting keynote of the day. Butter's sheath had remained the same size as well as his sac. The faint butterflies in her stomach came back full force as she approached him.

The soft steps on the wooden floor made Butter's ears flicker, but nothing more.

Tali set down the bag of food and box, taking the clipboard used earlier to continue writing down more notes. She wasn't willing to admit that she shared an intimate moment or two with Butter. She had heard all kinds of stories of people getting caught, their Pokemon taken away, and other strange cases. She chose to do it in private, away from prying eyes and no chance of there being any kind of recording equipment or hidden cameras. Intimate moments with Butter were mostly involved heavy petting and groping. She didn't do anything like that with her Pokemon, and yet, for some reason, she felt a kinship with Butter, something she found hard to explain.

Snore.

'Butter's progress is very surprising. After a mere...', she paused to recall the time before she left the house, "two hours, Butter has lost a generous portion of the weight he had put on. His earlier claims seem to be true. Both his sheath and sac appear to be unchanged.'. Tali paused in her writing as she gave the snoozing Pokemon another once over. She approached Butter, quietly, to get a closer observation. 'The faint musky smell from earlier is still apparent. It appears that the changes in Butter are temporary, but could lead to some permanent results if I change his diet."

Snore.

Butter's snoring abruptly interrupted Tali's thought process. She made one final note, 'Investigate Pokemon Viagra. Maybe.', before setting the clipboard down. With her scientific curiosity sated for the time being, Tali went to work arranging food for Butter. She made no attempt being quiet as she prepared the food. 'With the recipe written up, it would take no effort in replicating it.', she pondered.

The obvious sounds of Butter waking up made Tali turn around from what she was doing to see him stretch much like a cat and smileat her. He hopped down over the mattress, nuzzling up against her leg as a form of greeting. Tali in turn patted his head and rubbed along his back. "Have a nice nap, Butter?"

Butter nodded with a simple, "Veon."

Butter backed away slowly as Tali bent down with a small bowl of Pokefood. Butter eyed it cautiously before looking up at Tali with curious eyes.

"It's okay Butter. Nothing special about it. I'm giving you a small portion because I want to try something with the last batch that's still in the freezer." Sylveon nodded and went to eating. Wolfing down would be more appropriate. With Butter distracted, Tali moved to get her plan into action. She moved the cardboard box onto the Berry Bench and opened it, revealing something very similar to an IV bag with IV tubing. She pulled out and unfolded the thin plastic. It has been a while since she had used the feeder bag. It was a simple device that used gravity to feed certain Pokemon certain amount of food at a time. Bare basic, it was an IV bag with a valve, and a screwcap. The bag itself could hold one gallon of contents. Tali planned to use one half of a gallon and it would be more than enough to fill Butter.

With the screwcap removed from the bag removed, Tali opened the freezer and pulled out the large stewpot that housed the green batch. Tali opened up the stewpot to see its contents. Poffins before they are made, are usually blended together into a soup. Certain berries can change the texture of the soup. Some mixtures can come out thick, some come out creamy or soupy, and others come out as odd textures. The green mixture in the stewpot was thick and chilled, but would be perfect for Butter to consume easily. Tali grabbed a measuring cup and the Feeder bag and began to fill up the bag, little by little.

A small ' urp!' behind Tali signaled Butter had finished his light meal.

Tali noticed Butter eying her, and the Feeder bag. He tilted his head, showing his curiosity.

"Syl?"

Tali began to put the screwcap on the bag as she spoke, "This is how I'll feed you the recipe. We won't cook them into poffins this time around." The bag sloshed around as it contained the poffin mixture. Tali carried it over to the mattress and hung from a nail sticking just above the mattress.

The green liquid pushed its way down into the tube ready to go, but its progress stopped by a valve near the tip. With everything ready, Tali sat on the mattress and leaned against the back wall. She patted the mattress between her legs to signal Butter to climb up. Butter moved easily onto the mattress and between the legs of his trainer. He turned onto his back, exposing his belly. His head was also using her body as a comfortable pillow. It was a rare ritual they partook in, something only the trainer and Pokemon knew about.

Tali rubbed along the gut of the stuffed Pokemon, scratching it gently. His fur, even with his big gut, was still soft and smooth to the touch. Butter's hind leg kicked the air gently, letting out a gentle purr. Neither human or Pokemon spoke a word, just enjoying the peace, quiet, and the comfort of one another. The poffin mixture hanging from above was slowly starting to warm up thanks to the dry air inside the secret room, something Tali was aware of. It was also the reason Tali was stalling so to speak.

"Butter, remember the time you got sick and I brought you down here and fed you from the feeder bag, on this same mattress?" Tali broke their silence with a faint memory that happened almost a year ago. Butter opened his eyes, nodding up to her. He remembered fondly what happened, and how he had to eat small portions from the feeder bag, the very same one dangling above them, to get better.

"We're going to be doing something like that, only you will be eating the whole portion I have set up for you." She gestured by picking up the tube and the valve at the end. A small spout that was previously there, or what Butter could recall, was replaced with something a big bigger and less flow restrictive. With the valve open the contents would just come right down into his stomach!

"I'm waiting for the mixture to warm up a bit before we get to feeding you. In the mean time..." Tali's hand moved a little lower on Butter's stomach, right above his sheath. She could feel the heat radiating from it, and she wasn't even touching it. Butter let out a small squeak in surprise. "I would like to see the side effects of the batch upclose to make sure there aren't any effects we should be worried about." At the mention of the side effects, Butter looked down and away from his trainer, the faint blush returning. Tali giggled despite the butterflies in her tummy. It took no effort compared to earlier that morning to move Butter further up against her body. One hand cradled Butter's gut, patting it gently as wiggled and jiggled around like a Ditto. Butter let out a small purr and snuggled against Tali more, awaiting for their small ritual to begin. Already Butter's unnaturally large sheath bloated out nicely while being pampered while his sac seemed to shift about in preparing for the inevitable orgasm. Tali's hand felt around the sheath for any kind of abnormalities or anything out of the ordinary. It took no effort for the knot to suddenly bloat up right under Tali's hand. It felt like a solid mass of rock. Tali squeezed it gently, making Butter let out a sharp exhale. It could easily be the size of an orange from the (delectable) mental image she had in her mind. Her hand moved further down to his sac, cupping it gently as she rubbed his testicles to feel anything odd or out of place. The one testicle she lifted up twitched and flexed in her hand, feeling the contents under pressure that she held.

"Well Butter, the good news is, you seem to be fine." She said as her hand motioned back up to his sheath and giving it a few pumps. Butter arched his back, his front paws rubbing along his tummy. A few more pumps invoked the same reaction. Tali paused as she noticed his very visible reaction to her light petting,

"Are...are you very sensitive right now Butter?" He slowly went back to his position against Tali, panting hard. He nodded his head briefly and braced for it to happen again.

'Another side effect? Interesting...'

Tali held onto Butter with one hand across his upper body while the other hand glided up and down his sheath. The bloated and pink monster that was housed within the sheath poked its head out from its home. A glob of pre oozed its way out and onto Butter's tummy. Tali noticed Butter's sac was twitching, almost as if he was orgasming. Each stroke along Butter's fat 'eon monster made him cry out weakly, shudder, or exhale. A combination of the three happened often as well.

"Does it feel good Butter?" She cooed, teasing his knot for a few moments. Butter nodded again quickly before letting out a muffled cry right into Tali's hand as his knot was coaxed and fondled.

"Good."

Butter let out a grunt as his trainer's hand squeezed and fondled the pink dong again. His lower muscles twitched and spasmed, attempting to pump upwards into her hand. Tali's thumb, wet with pre, motioned over the pointed head. Butter once again let out a muffled cry, his hind legs pumping upwards again on reflex into her hand. Tali was still eying Butter's balls which continued to flex and twitch. Each small flex seemed to pump out more pre. Tali dragged out jerking off Butter for several minutes, keeping it at a steady pace between pumping the shaft, playing with the pointed-tip, or messing with the knot gently.

The poor Sylveon, teased and coaxed for several minutes finally hit his peak!

Butter let out a muffled cry while Tali had no time to react as Butter arched his back in the air and sent out the first blast of 'eon cum right into her face. She gasped in surprise, or tried to, as the second blast hit her right in the mouth and the back of her throat. Her left eye was covered in cum while her right eye remained. Tali felt the throbbing mass of cock in her hand expand and contract as each payload of sperm was dumped everywhere. Butter's sac had drawn up right under his penis, twitching and flexing repeatedly as Sylveon kept orgasming and spending his seed all over the mattress, himself, and his trainer. Tali swallowed the load of cum in her mouth on reflex while coughing and hacking to get the rest out of her mouth. Butter suddenly slumped against his trainer as the last few twitches signaled his fading orgasm.

Tali was frozen, not out of disgust, but of surprise and shock.

Tali used the hand she had across Butter's middle to wipe away the cum on her face and onto to the ground.

"I should've seen that coming." Tali said, spitting out the last remnants of cum. White gunk was splattered all over Butter, who didn't seem to care, and on parts of her face. The mess didn't seem to be anywhere else save for her face, Butter's chest, and in her stomach. Tali removed her hand from Butter's sheath, making him shudder visibly. The poor Sylveon was still throbbing and erect, but had lost a majority of his testicle size and the size of his knot had was noticeably smaller. Would the effects be permanent? Would they be bigger if he ate more? More sensitive even?

Those questions would have to wait since they had more trying matters at hand.

Tali had no choice but to strip her shirt off, and use it as a makeshift towel for the both of them. Most of it had oozed onto Butter's tummy and was easy to clean up. The rest, being on the mattress and on her face, was cleaned up as well. The musky smell would, most likely, be a permanent addition to the secret room under the shack.

"Feel better Butter? Ready for your food?" Tali said finally after feeling clean enough to continue what she originally set out to do. Butter fluttered his eyes open from resting, recovering from the biggest orgasm in his life. He nestled against against soft skin, nodding his head and letting out a, "Syl!" to signal.

'I swear I'll never get this smell out...' Tali thought as her hand picked up the tube. The feeding tube felt heavy, Tali noticed.

The mixture in the tube felt chilled, but not as cold as it in the freezer. Butter opened his mouth and allowed the tube to enter his mouth, eager to sample the delicious mixture that dangled above.

"Here we go. I'll start slow for you." She said as the valve opened easily, and partly. The effect was instant as the green fluid pushed past the valve and into the waiting mouth of Butter. He swallowed the mixture, shuddering visibly in the delight of flavor that graced across his taste buds. Tali moved her right hand on and around Butter's gut as he began to feed, using her hand to soothe his gut which would begin to slowly rise. Another swallow followed by another. Tali felt Butter's gut slowly starting to rise under her hand. Her left hand, carefully positioned on the valve, opened it just a little wider. Sylveon's eyes widened just a little as a load of the green mixture pushed down into his mouth and made his cheeks bulge before swallowing it. Tali noticed bulges in Butter's neck as each swallow carried its payload down into his stomach. (click link, let load, click play, continue reading story)

Her hand felt his ballooning belly blossom under her hand, much to her excitement. Her hand continued to rub and scratch along his tummy, soothing it as it swelled in size. The secret room was quiet save for the heavy sounds of swallowing coming from the Sylveon. Tali's eyes looked up at the mixture that was very slowly disappearing down the tube and into Butter. The pace Butter was swallowing at was enough for Tali, so she moved both her hands onto his stomach, rubbing along either side. Butter let out a whimper of pleasure, swallowing yet another payload of the green stuff.

A few more minutes into the feeding, Butter had most of it swallowed down and his stomach certainly showed it. His gut was almost the same size as it was when Tali saw him this morning and judging by the sounds his stomach was making, he was busy enjoying and digesting the large poffin mixture. Tali's hands continued to pet, rub, and soothe Butter's churning gut. Butter's leg kicked lazily, making Tali smile.

"Eat up Butter. We gotta get you fat." She teased, slapping his tummy with both her hands gently. Butter's stomach let out a loud churning sound from the slap before calming down again in volume.

The last of the meal finally passed Butter's mouth, capping it with one last audible gulp. Tali removed the tubing from his mouth and saw his fat gut pushing up and outwards. His stomach continued its loud churning. Butter lazily licked the last of the green stuff off his muzzle before letting out an ' urp!'. He massaged his fat belly along with his trainers hands, trying to soothe the gentle, if satisfying, ache his belly produced.

One of Tali's hands slapped gently up against the Sylveon's gurgling gut, rubbing the spot soon after. Each slap increased the volume of the gurgling before calming back down once more. Butter moaned as his gut was slapped and rubbed, his sheath swelling from arousal.

"Feel full Butter?" She asked, scritching along his tummy once more. Butter, so full, content, and sexually satisfied, nodded his head up to Tali. "Good. We'll make you a little piggie in no time."

A creeping thought entered Tali's mind. Had she given Butter the viagra mixture, or the weight-gain mixture?

. . .

. . .

Oops.


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