An unfair trade

by Rathalos122

Rating: mature
Tags: Dark, Changelings, Porn, Fetish, Death, Original Character, My Little Pony: Friendship is Magic
Length: 4325

When Eco Stigma found a store selling powerful artifacts he had to acquire them for himself, no matter how. Contend warning: vore

When Eco Stigma found a store selling powerful artifacts he had to acquire them for himself, no matter how. Luckily for him, he knows his way around, when it comes to negotiations. Not that the other side would agree with that statement, but in the end, he will get what he wants.

Content warnings: vore, soft digestion, some sexual contents, soul vore, soul digestion.

Written for Swift Sketch, featuring his changeling Eco Stigma.

Thanks to Withania for proofreading.

Published 2019-06-18 21:40:01 UTC
Last updated 2019-06-18 21:40:01 UTC

An unfair trade

After some searching around Eco Stigma finally found the place he was looking for: Runic Glow, an enchantment emporium specializing in all kinds of runic magic. Eco had encountered quite a few magical artifacts from this place, most quite powerful ones, and decided to seek this shop out for himself. After all, it was bound to harbor even greater treasures and he fully intended to claim those for himself. Not wasting any more time, Eco opened the door open with a casual flick of his magic and strutted inside.

The store's insides were already looking promising, Eco could feel the air inside brimming with magic as his eyes scanned the shelves lining the sides. They were full with all kind of trinkets and crystals, obviously enchanted in some way, but once his eyes fell on the shelf behind the counter he knew he found what he was looking for. It was full of proper artifacts, the source of the magic he was feeling, promising untold power to whoever would claim them.

“Just a second,” suddenly came a voice from the back, a bit of a shame in Eco’s opinion, when he saw nopony in the store, he was playing with the thought of just grabbing what he can and running off. “Welcome to Runic Glow, I am Rune Chisel and can enchant...” the voice continued, while its owner walked into view, a deep teal earth pony with a cutie mark of a chisel etching a rune into a stone.

Rune’s greeting stopped once he saw his guest, it wasn’t every day that a changeling walks into your store, even if obviously wasn’t a normal one. While the basic body shape was familiar, black chitin, hole-filled legs, and large fangs, instead of a blue backplate his was of a slightly darker shade of green, as was his belly. Furthermore, the changeling had an actual mane, dark green in color and keep in a rather curious hairstyle, straight on one side and messy on the other accompanied by a short tail. The last difference to note were his eyes, while completely blue as with most changeling one could see a slitted pupil in the middle of them, giving the bug quite a piercing gaze.

Still, Rune managed to collect himself, it wasn’t the oddest customer he had so far and, judging by the glowing gem the Changeling was wearing as a necklace, it was indeed a customer interested in his wares. Rune cleared his throat and began his welcoming speech anew. “Sorry about that. Welcome to Runic Glow...”

Eco cut the earth pony up with a wave of his hoof “Yeah, I can figure out the rest of that speech,” he said while mustering the pony, happily noting that instead of some frail old unicorn he was expecting, the store owner was earth pony, physically fit as most of them were, and quite a welcome addition to the treasure in this store. He was already looking forward to claiming all of this. “Well, I'm here for some magical shopping. Trinkets, jewellery, artifacts, as long as it’s good consider me interested. My name is Eco stigma by the way,” he said, approaching Rune, although all of his attention was currently taken by the artifacts behind the counter and he couldn’t withhold a greedy grin at the sight, displaying a row of sharp teeth and fangs.

To be honest with himself Rune was slightly intimidated by this sight but managed to keep his cool. Considering the attention Eco was giving his wares, Rune was certain there was a chance for some very profitable sales, provided the played his cards right. “Oh, I’m sure I have exactly what you want. Whatever you can think of there is something for you and even if not, I can just make it.”

“What I want? Power of course,” Eco said, returning his attention back toward Rune, steadily stalking closer, “If you need more details, let's start with something to boost my magic, not that I need it, but you can never have enough.”

That made things simple, the pony knew exactly what to offer. “In that case, there are magical amplifier rings,” Rune said and pointed towards said objects behind him, “Just slot one on your horn and whatever type of magic it's tuned to, will be greatly boosted. They are a bit on the expensive side but have no real drawback. I suggest taking two or three in the magic schools you prefer.” After finishing his little sales pitch he turned around again, to face his customer again only jump back in shock at seeing Eco standing close to him, having moved behind the counter while Rune was looking away.

Eco merely commented on this occurrence with a taunting smirk. “Why should I choose? I'll just take all of them. Let's just say that money won’t be an issue for me,” Eco said, noting how the shock in Rune eyes disappeared, replaced by burning greed as Rune heard this. Without doubt, thinking about the riches he thought he would gain. Sadly for the poor stallion, Eco’s statement had another interpretation, one the changeling was looking forward to. “As a matter of fact, there is another thing I want right now, something I'm certain you consider very valuable.” Rune was visibly enticed by this offer allowing Eco to get closer again without any sight of the earlier panic. “I want you.”

All Rune could get out was a confused “What?” before the Eco Stigma’s long tongue rushed and wrapped around Rune’s throat, cutting him off and pulling him towards Eco’s maw. Rune was forced to stare down Eco’s gullet, sharp teeth framing the view of an abyss of light blue flesh. “Wait, stop!” Rune yelled and attempted to push the changeling away, but Eco allowed none of that, quickly shoving his head forwards, gulping the pony’s head into his wet throat and moving past Rune’s shoulder, pinning his forelegs his body. His prey secured, Eco knew he could slow down and enjoy his meal, moaning in delight at the taste of the pony as his tongue travelled further down the body. Rune meanwhile was in a full-blown panic, desperately struggling to escape the Bug’s grasp. Yet his struggles were rather pathetic, his whole upper body could do nothing but slightly squirm around inside the powerful hold Eco’s mouth and throat had over it and all he could do was wildly flail around his hind legs, achieving nothing but some amusement for the predator claiming him. Said bug let him tire out for a bit until his horn ignited and his magic grabbed down on the legs, putting an end to it.

While this was happening Eco steadily gulped down Rune further, Rune could feel strong muscles grabbing his body and pulling it deeper, each downward pulse that moved past him letting more of him disappear past the Changeling's lips. Eco kept up a steady pace, consuming more and more as his hooves caressed the bulge Rune was making on his throat. Although he stopped his progress once he reached Rune hips, a tempting idea coming to his mind. He let his tongue slide out and started to fondle Runes balls, gently caressing and kneading them, until he could fell Rune’s hardening shaft emerging from his sheath. Rune meanwhile was quite surprised by this turn of events, while still somehow trying to escape, the attention his cock was getting was impossible to ignore. Slowly the lust and pleasure were making his thoughts hazy, reducing his struggling to nothing more than a half-hearted squirming and a few protests. Which of course went ignored.

Once Eco felt his prey calm down, and any real struggle wane, he suddenly resumed his swallowing again. This time he swallowed more and more of Rune in surging gulps before the pony had any change to respond, quickly chowing up the pony’s hips, until all that was left was a rather large bulge in Eco’s throat.

From Rune’s point of view, things changed quickly for the worse. In one moment he was rather distracted by Eco’s tongue work, following by a sudden lurch downwards, his head sliding into Eco’s stomach. A chamber of light blue flesh greeted him, with a bubbling pool of green acids awaiting his body.

While Eco took some time enjoying the bulge Rune’s rump made on his throat, it was time to finish this and with a last, massive gulp he sent the stallion into his fleshy tomb. With enjoyment, he felt his gut swelling as it accepted Rune’s body, eventually even touching the floor. Eco let out a loud, victorious -Buuuooorrp- and gave his belly a firm smack, the contours of the pony clearly visible on it. Now it started to widely swing around as the pony inside recovered from his shock and began struggling, desperately yet futilely trying to escape his confines. In the end, this only caused Rune to be completely soaked with Eco’s stomach acids, green liquid covering all of his body and a curious feeling spreading through it as it began working on him.

“Isn’t that a better payment than some lousy bits?” The bug said as he started walking again, full belly dragging over the floor as Eco moved towards the front doors, closing both the latch and the curtains. “You get to feed a superior being, quite an achievement for a mere pony.” Eco finished with a chuckle and went looking for a good place to churn his meal off.

Inside his gut, Rune was tossed around by the movements of Eco navigating his heavy gut through the store. “Shut up, how in Celestia’s name does this count as payment? Let me out!” Rune yelled from his churning prison. But things were getting hazy again for him, at the start he feared the digestion would be painful but that seemed to be far from the truth. All around he felt an intense feeling of pleasure coursing through his body, no doubt some changeling trick, he would have to get out before nothing but a moaning mess remained of him. The mess part might even be literally, already the saw parts of his body dripping off and this thrust and shoves against the stomach walls had less of an impact as his body began to soften.

-Buuuurp- Eco let out another belch as the tumult in his grumbling gut stirred up quite a bit of air. “And here I am, being so nice to you and this is how you thank me?” He said with a teasing tone in his voice, “Guess I have no choice other than gurgling you up. I hope you have at least prepared to a good place for me to rest.” By now he reached the backroom and took a look around, noticing with glee that it had even more artifacts stored inside. Besides that, it was mostly some kind of workshop, probably the place Rune used to do his rune carving. A few worktables, an array of different tools, material and so on. And a comfy looking couch. “Here we go,” the bug exclaimed and threw himself on it. Besides from the worrisome creaking this caused, it was comfy and cozy, a good place to rest and digest.

True to what Rune was fearing he slowly but surely lost his mind to the pleasures the digestion was giving him. He could barely even form a straight thought, and every attempt to speak up was interrupted by a loud moan coming from him. Any attempts at struggling pointless now anyways, the last time he tried against the gut merely caused part of his hoof to fall off with a wet splat. Even then there was no pain coming from this, just more pleasure coursing through his body.

Eco was listing to Rune moans with quite some glee “See? I'm doing you a favor after all, not only do I grant you the honor of becoming part of me, I even make this pleasurable for you.” Of course, the pleasure thing was entirely selfish of Eco, causing his prey to radiate good emotions for him to absorb while his meal churns away, which essentially granted him two meals from one pony. “Now be a good pony and churn away.” His forelegs grabbed his gut and gave it a good shake, noting with satisfaction that its contents already sounded rather on the sloshy side.

At this point Rune Chisel was indeed a melting, moaning mess. The stomach groaned and grumbles as it slathered him with more acids, its green color mixing quite nicely with the teal goop dripping and flowing of his body. His hind legs were gone already, already melted off into the soup his body was slowly sinking into and the parts of his foreleg that were left didn't fare much better. Not that he was capable of caring at this point, the pleasure the changeling digestion was giving him was overwhelming, pure bliss coursing through every part of his body, every time another part of him dripped off into the goop below him another part of him was exposed to the stomach fluid rewarding him with another jolt of pleasure. Suddenly the stomach walls began to move, being pressed in and moved around as the Changeling started to massage his churning gut.

Eco was quite content with the digestion so far, the pleasant feeling of a pony melting inside of him, absorbing the good emotions it produced and seeing his belly getting rounder as the form of the stallion inside was broken down was always one of his favorite moments. -Buuurp- he let out yet another blech, this time smaller than its predecessors and continued kneading his belly, making sure the pony inside was being processed nicely. From time to time he levitated one of the artifacts towards him and gave it a quick inspection, but mostly he was content with lazying around and watching the bulge in his gut slowly shrink down while his rump expanded, a good layer of fat building on it, the final destination of all the nutrients he claimed from Rune’s dying body. Well, there was probably a good buildup on other places like his flanks and gut, too.

There wasn’t much left of Rune Chisel. At this point it was nothing more than a melting head inside a pool of soup, yet he wasn't worried even as his mind slowly became incoherent he felt nothing but bliss and this wasn’t the only thing he was feeling as the head slowly sank into the goop an everything went black. But that wasn’t the end of it. Soon after that, the blackness was driven away by another feeling, a strong pull upwards, toward an object shining brightly with magic. For a moment he realized that it was Eco’s necklace before the glowing gem pulled his soul in, trapping it inside. “Oh, you won’t be rid of me that easily, I intend to keep what is mine,” Rune heard Eco’s voice echo through his prison and somehow he could feel the bug giving the gem a teasing lick. “I’ll find a use for you later, my little trophy, but first I think I’ll take a closer look at my spoils first, you seem to have left me quite a few treasures.” Rune tried to respond but felt himself unable to do so and was quickly lulled into a deep slumber.

With that said, Eco jumped up from the couch, his full gut loudly sloshing as he did so, and went to work. He did a thorough search of the place, collecting whatever artifacts felt more powerful to him and bringing them into the back room. All the while, his stomach dutifully processed the nutrient soup inside, loudly groaning, grumbling as it worked causing Eco to burp from time to time. The Changeling even tested out a few of the weaker items he found, with various results, some of them coming close to end up as awkward accidents. He quickly came to the realization that testing the more powerful artifacts would only end in a stupid death, something he didn’t plan to ever let happen to him. In the end, he stood inside the backroom again, his gut back to its normal shape, albeit with an ample amount of fat added to it, not to mention the size his booty gained and contemplated what to do next.

It would require an enormous amount of time studying these artifacts, figuring out their purpose without blowing himself up. A massive waste of time in Eco’s option, luckily he had a little shortcut with him. He closed his eyes and started to concentrate, slowly focussing his magic on his soul gem, pulling Rune’s soul out of it, forcing it to materialize and tethering it to his body. Once he opened them again, he knew he was successful, Rune’s confused soul was hovering in front of him, mostly looking like stallion again, despite now being of glowing blue color, slightly translucent and his back legs were replaced by a ghost-like ‘tail’. “Look who’s back, now tell me how your stuff work, I'm not in the mood to figure it out for myself.”

“You- YOU ATE ME!” Rune yelled with fury in his voice, while trying to fly away from Eco, yet he could leave the changeling presence, something forcing him to stay near the bug. “Why should I tell you anything?”

Eco rolled his eyes “At least you're able to state the obvious.” he said while grinning at the soul, his fangs bared. “Let me explain a few things to you. Currently, your soul belongs to me and currently, I am the only one who could ever reform you, bringing you back to life” His hoof moved up and tapped the gem on his necklace. “Or do you prefer to stay inside here forever? Nothing more than a trophy for me to keep? You wouldn’t be the first one to suffer that fate. Just help me with this and I will return the favor.”

A tense silence followed this, Runes crossing his forelegs and glaring angrily at the bugs, smug grin. Eventually, he dropped his legs with a sight. “Fine.” Rune said in a defeated tone, “There is a book hidden in a secret compartment under the worktable right behind you, it should give all the answers you seek.” With glee in his eyes, Eco turned around And marched towards said table. Rune’s soul was pulled along, eventually deciding to just hover over Eco’s jiggling ass instead of being dragged like a stubborn dog on a leash. He watched over Eco’s shoulder as the changeling retrieved the book and began reading with clear fascination. ”This is my life’s work, every bit of knowledge I have acquired on rune magic, every detail over all the artifacts I have found and crafted,” Rune declared with quite some pride in his voice.

“How nice of you to spend your life on making such a nice present for me.” Eco snickered while still being busy reading, thinking of what the things written in here would enable him to do.

Rune was fuming at this point “You got what you want now let me go” he exclaimed, rushing towards Eco, trying to give the rude bug a good shove. Sadly while his soul could interact with the world there was no real strength behind it, his ghostly hooves merely squished in the fat on Eco’s rump a bit, the futile attempt clearly amusing the bug.

“Oh, you're right,” Eco said, closed the book and let it unceremoniously drop to the floor “I don’t need you anymore. I guess it’s about time I return the favor. After all, you have been such good help for me.” His magic ignited with a blue corona, taking hold of Rune’s soul, dragging it closer towards his open jaws.

“What? No that wasn’t the deal you said you would-urk..” Rune’s protest was cut short one his ghostly head was pressed inside Eco’s salivating maw. Eco wasted no time and swallowed the head down, murring happily at the exotic taste the soul had. The consumption itself was an easy process for Eco, Rune tried his best at struggling, but the lack of strength in this form meant he was pushing uselessly against flesh that wouldn’t even yield a bit, Eco’s throat muscles mercilessly pushed him deeper down the slick tunnel. It wasn’t long till he entered Eco’ stomach again, the fleshy sack gradually expanding as it accepted his body. “You said you would reform me, you bastard!” Rune continued his earlier protest once he had enough room to speak again even as more and more of his soul was shoved into the stomach.

Eco was currently too busy slurping up Rune’s ghostly tail to answer, slowly all of it was dragged down his into his gullet, the last part of Rune Chisel the world would ever see disappearing between his lips. “You really believed that?”-Buuuuroop-”That’s hilarious. I merely said I would return the favor and by now you should know what I mean by that.” he said once his throat was free again and plopped himself on the couch again, this time in a sitting position. With satisfaction, he looked at his massive gut, a blue glow coming from within it.

Rune could already feel the acid affecting him, just this time they felt different. For one the pleasure was more intense, it came fast and gave him even less chance to resist its effect. But there was something else, as his mind started to figure out what was happening he suddenly lost his train of thought, in confusion he tried to recall what he was thinking about, but he could remember anything about it, maybe he was just distracted by the overgrowing amount of pleasure bearing down on his mind. But soon he realized what was happening, more and more holes were appearing inside his memories and slowly his ghostly form, his soul, began melting. And he felt himself caring less and less about this, the pleasure starting to overwhelm his mind till he was in a constant state of bliss.

Things were getting rather pleasant for Eco, too. A pure kind of energy coursed through his body, electrifying every bit of it as he absorbed it, the kind of energy that could only be acquired by destroying a soul. His tongue lolled out as he was left panting by these sensations, strong pleasure and lust filling him. Eventually, his shaft emerged from his sheat quickly hardening and demanding attention, thought Eco’s hooves had no way of reaching it past his big, churning belly. In the end, he just caressed said gut within and began pumping his throbbing cock with his magic.

Inside his gut, Rune was steadily deteriorating, his soul melting into the green glowing acids surrounding him. Ever part of him that dripped into the fluid was quickly dissolved, leaving nothing behind. At this point, he could no longer recall the second part of his own name or how he ended up inside whatever being was digesting him. In fact, his memories were nothing more and a diminishing amount of contextless fragments. But he didn’t care about all this, all he was able to feel was the euphoria this process was granting him, unimaginable pleasure coursing him, every time he thought he reached the climax it was increasing even more. He could only moan and enjoy this.

-Buuuuuuurp- A bit of blue fog accompanied Eco’s belch, some byproduct from the soul melting cauldron of his gut that quickly dissipated. All in all, things were progressing nicely, his belly even started to shrink again as the soul inside was digested away. The energy was still flowing steadily into him, wracking his body with pleasure. It was a good thing Eco’s hooves could finally reach his cock again an opportunity he eagerly took to give it some a proper treatment. Steadily he started jerking it, his hooves moving with an increasing pace along it, while his magic was demoted to kneading his balls.

All that was left of Rune was the core of his being, everything else was already broken down. A glowing orb containing his personality, his dreams and everything else that made up his innermost. But while it was more robust than the other parts of his soul, it wouldn’t last forever. And indeed soon it broke under the merciless onslaught of Eco’s stomach acids, it contends quickly melted and dissolved away, gifting Rune with a final rush of ecstasy.

At the same moment, Eco was driven over the edge, as the energy he was absorbing surged, greatly increasing as the core of Rune’s soul was digested. He only could give his shaft a few last strokes, before its tip flared and he erupted. In strong pulses his throbbing cock shot his load all over the floor in front of him, many spurts hitting the book Rune worked on all his life, leaving its outsides a cum soaked mess. While this was happening the glow inside Eco’s gut was slowly diminishing, eventually fading completely and the small bulge that was left shrank away, leaving Eco’s gut in its normal if fatter state.

With exhausted pants, Eco came down from his orgasm, his cock slowly becoming flaccid again and receding back into his sheath. Looking down at his belly, he could find no trace of Rune’s soul, neither a bulge nor a glow. He knew this meant that he had completely annihilated the soul for good. But of course, he felt no regret or remorse over this. His eyes drifted over the treasure he had collected in this room. But they could wait for tomorrow, it was an exciting day and he deserved some rest. With that thought, he let himself fall completely on the couch, slowly drifting into a well-deserved sleep.