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As an adventuring crew crept carefully into the darkness of the dungeon below, its creator watched from a distance. The small adventuring party was really starting to get on Mortier’s nerves. They were here to investigate his newly created dungeon, and as a hardworking evil sorcerer Mortier really didn’t want to deal with pesky knights and wizards.
He himself was quite safe, he mostly used the dungeon as a testing site so his actual quarters were over half a mile away. It was easy to remotely monitor a magical domain he himself created.
Still, the adventurers were killing all his experimental beasts. He had worked hard on those killer rabbits! Engineering rabbits to spit acid was no easy feat, and he was just thankful those fuckers didn’t manage to wipe out his entire breeding population.
The small party was in a relatively safe area of the dungeon for now, but they were coming up on a mage trap that Mortier was privately quite excited for. The party was made up of four knights and two mages, a standard scouting party set up by the guild. The two groups likely didn’t know each other before this mission either, which Mortier intended to take advantage of if he could manage it. He also guessed that the wizards were a master and apprentice pair, but he hadn’t heard them mention it in the rare moments he would add a sound component to his scrying spell.
As the group approached his little pit trap, he carefully started to anchor the scrying spell to the organism at the bottom. If everything went well, it would be an incredible vantage point. And it was less magically expensive, besides.
Mortier waited with baited breath as the adventurers began to cross over the trap. The mages were at the back of the party, and he could tell the pit monster was almost as excited as he was at the chance for fresh prey from the way it shifted.
Just as the apprentice stepped over the pit, the floor opened beneath him. An older wizard would have caught himself immediately and prevented the fall with magic, but as it was the young man only managed to catch himself in his magic after he had already fallen most of the way in. His elbows hitting the ground around the opening seemed to shock him into freezing his descent. Sensing its prey was as close as it was gonna get, the pit sealed itself around his chest, leaving his arms and head just above the floor.
Mortier added the sound sigil to his scrying grid. He wanted to get the best data possible. He added the record sigil for good measure, pulling a large quartz crystal from his shelves to use as storage.
The adventurers had erupted into a flurry of movement, trying to protect themselves from a threat that had already struck. Only the master mage seemed relatively calm. Relatively.
“Calm down, you fools! It’s only a mana pit.”
The harsh tone didn’t seem to match the fine boned man that spoke them. He was middle aged, his face gently weathered with past grins. A short salt and pepper beard adorned his face, neatly groomed. He had the very long hair characteristic of a seasoned wizard, twisted into many fine braids to get it out of the way during battle. He turned towards his trapped apprentice and smiled, clearly trying to ease his worries.
“Don’t worry. A mana pit is annoying, but harmless. It will drain your mana and then let you go, but it would be unsafe to pull you out until it releases you itself. They tend to retaliate. We’ll just have to wait here a while and come back another day to explore further.”
The knights shuffled, agitated. The squad leader stepped forward, another older fellow with much crueler lines etched into his face, including a long scar curving from his brow to his cheek.
“My squad will scout forward until the end of the floor, and then return to wait out the trap and free the boy. That way we won’t lose as much time while the host mage is still unaware of our presence here.”
Mortier laughed to himself. He knew where they were from the moment they entered his domain! He knew most dungeon wizards were weak and poorly trained, people only tended to contract with a dungeon core if they were already desperate outcasts, given how taboo it was. He didn’t realize that it would cause adventuring parties to underestimate him that badly! Weren’t these people supposed to be the best of the best? Ah, but they wouldn’t waste the best on a scouting party. This group was probably solidly average, and easily written off if most or all of them died. Well, its not like Mortier would complain. Especially given that it meant they would leave the trap to do its work.
It was already starting the numbing process, carefully deadening all sensation via poisonous mist. This was one of the only functions still shared between a normal mana pit and Mortier’s modified one. It was useful to lull a victim into a false sense of security, and covered up the... upcoming effects.
His plan for the pit design was to disable a mage for an extended period after being caught by one, and for...personal reasons. He was excited to see how well it would work.
As the squad of knights walked away, the apprentice went from panicked to ashamed at being caught so easily. His sweet round face pinked with embarrassment. He seemed to be a young man of around twenty, based on his journeyman robes, but his hairless face made him seem younger. His hair was just past his ears, making it obvious he was only recently out of his apprenticeship, when they would have shorn his hair short every month or so. It was likely that this was one of his first missions outside the mage enclave. It was almost a shame.
“I’m sorry I got myself caught, Master Luther,” the apprentice muttered, eyes focused on the ground in front of him.
The elder wizard smiled. “It was an honest mistake, one easily recovered from. If only all my mistakes were so easily reversed! It’s only a matter of time, Minke, until you forget about this incident entirely, mark my words.”
Minke smiled, reassured, even as the pit’s saliva began to dissolve his clothing and hair below the surface. It would only effect dead organic material, leaving his skin untouched and causing his supplies to fall to the bottom of the hole, to be collected by Mortier later. Minke didn’t seem to notice any change, an encouraging sign for the rest of the process.
Mortier was surprised to see that the boy was deceiving his comrades, given the small breasts and newly hairless pussy now visible on his scrying desk. He didn’t actually care, the magic of the pit would have worked similarly regardless, but it was a bit of intrigue he wasn’t expected. The guild didn’t allow coed adventuring parties, given the long missions in the wilderness and the hazards of pregnancy in such an environment. He wondered if the knight squad was aware. Probably not.
The many translucent tentacles at the bottom of the pit started to stir now, sensing that the new prey was now ready for the next steps. This was the part that Mortier engineered. A normal mana pit would just spray mist to numb the victim and drain them by causing a mana vacuum in the air, which would pull mana out of the living organism via magical osmosis. This was a slow and inefficient process, usually taking multiple hours. Mortier’s tentacle trap was far more efficient (and entertaining) in its feeding.
The first tentacles simply wrapped around the ankles, pulling them apart into a near-split. The next one was fine and thin, with a fist sized bulbous stinger at the end. It coiled up his leg and approached Minke’s tiny chest. It struck both small mounds, taking its time to inject its payload. This was the real key to the new hunting strategy, so it needed to be thorough. The swelling started almost immediately, which was a good sign.
As Luther sat on the dusty ground and started to lecture his loyal apprentice on what Minke might have done differently in their recent battles, another set of thin tentacles rose up to gently pet his nipples and clitoris. These were around finger width, and looked almost furry on Mortier’s screen. It wasn’t true hair, instead a fine coating of venomous spines modeled off of cactus glochids and jellyfish stingers. Each tiny hairlike spine held a potent aphrodisiac, and the stingers were so tiny they would dislodge themselves at the subtlest nudge and be nearly impossible to remove. The fingertips of Mortier’s left hand were still oversensitive from when he was creating the beast a few months ago, and he was able to remove the spines in less than five minutes.
Minke would likely be in the pit for more than an hour.
Anywhere the tentacles touched swelled and flushed. If the boy was aware of it he would be insensate with a building pleasure so intense it became pain. It looked like it would be agonizing. Mortier reached for his stiffening cock.
While Mortier was focused on the furred tentacles petting Minke’s nipples and clit, he didn’t see the handful of wire thin tentacles reaching upwards until they were spreading Minke’s vulva open and curling into his pussy. These living wires were deceptively strong for their size, and spiraled into Minke’s wet cunt to slowly stretch it wide. Within a few minutes Mortier was able to see the boy’s cervix, and as he watched the tip of a few of those wire strands wiggled their way inside.
More and more wire tentacles were investigating. Some started to copy their brethren and started to stretch his waiting asshole open as well, one even pushing its way into his urethra. Yet more curled around Minke’s nipples and clit and mercilessly yanked them in every direction.
The furred tentacles were now free to strike the more vulnerable areas exposed by the wires. They lingered for a moment, careful to coat every millimeter of Minke’s nipples, clit, and vulva before moving on. The wires helped considerably with getting the more difficult angles covered.
Then, without hesitation, all three of them jabbed up into Minke’s cunt, coating every inch of his inner walls in their venomous spines. His pussy convulsed and tightened, driving the spines deeper and deeper. It was drooling vigorously, both in forced arousal and an attempt to wash the spines out, however useless the attempt was.
Minke’s face was still relaxed as he chatted with his master. Mortier marveled at the contrast.
After they were satisfied with stirring up Minke’s pussy, the furred tentacles broke up. Two pulled back and switched to the other available hole, intent on ruining that one as well. The final tentacle seemed to push further and further into Minke’s cunt, and Mortier assumed it was attacking Minke’s most private place. The contrast of the boy’s oblivious conversation and the knowledge that his womb would forever be sensitive in ways it was never meant to be...it was intoxicating. Would Minke be desperate for men to cum inside him, to fill his womb with their seed? Mortier didn’t know. That was part of the experiment!
Minke’s breasts had been swelling steadily throughout this process, and were now enormous by anyone’s standards. Given that they started out nearly flat made their current size genuinely impressive, especially given the growth reflected magical reserves. Seemed like the kid was a powerhouse. They were closer to udders than a normal pair of breasts now. Even his nipples grew, now being almost the length of his thumb and about as thick. There was a faint blue glow under the skin where Minke’s breasts were most swollen, showing off the mana buildup inside. This was what the tentacle pit was truly after.
Yet more specialized tentacles arrived. These were a pair of tentacles with huge suckers at the tip, and a thorny opening at the center of the cup. They quickly moved over to latch onto Minke’s swollen teats, spines trapping his nipples exactly where they needed to be. The suction cup sealed itself over the fraction of Minke’s tits it was able to cover, and began to drain the boy dry of milk and magic.
This was when the timer started for when Minke would be freed, because the pit would stop producing the numbing mist and spit him out when he was completely drained of magic. Mortier was almost sad at the thought, before thinking of the boy’s reaction when the mist receded.
Minke’s cunt was drooling endlessly now, completely soaking the tentacles still underneath it. A final pair of enormous, gnarled tentacles were the last to arrive to the scene. These were one of the last modifications made by Mortier, and he was hopeful they would bear fruit. They were each as thick as Minke’s forearm, thicker at every ridge and knob. There was even a strange little bulbous tip on the end of each of them, like the bud of a flower.
The furred tentacles pulled out, although they were hairless now, every spine lodged into trembling flesh. The wire tentacles just coiled wider, opening Minke up completely. Even still, it looked it like a painful stretch when the ribbed tentacles pushed their way inside. It was slow going, tentacles rippling like worms as they strained to inch deeper and deeper into his pussy and ass. Mortier was so thankful he was recording this.
Milk was steadily draining out of Minke’s bulging breasts, the liquid’s faint glow visible in the center of each of the translucent tentacles as they ‘swallowed’. His tits were shrinking slightly, but they were going to reach down to near his navel even after being fully drained. A proper set of bimbo tits suited the boy, Mortier decided. It’s not like it could be reversed, in any case. Minke would be walking around with a pair of enormous leaking teats for the rest of his life.
Minke seemed to be noticing something at last. The mist was derived from his ambient mana, so as he was drained it would slowly weaken the numbing effect. He shifted, apparently uncomfortable.
“Are you alright, Minke?” His master questioned, concerned.
Minke quickly covered up his discomfort with a grin. “Oh, I’m fine Master Luther! I think I’m just feeling the mana drain now.”
Luther smiled back, before turning at the sound of footsteps. The knight crew had returned.
Meanwhile, underground, the pair of tentacle cocks were beginning to rock back and forth. Initially they were slow and careful, but within a few minutes they were almost punching up into Minke’s suspended body. They were alternating their strokes, one pulling out almost completely while the other plunged itself as far as possible into his waiting hole. Each backstroke would have pulled Minke’s body downward with friction with how snug the fit was, if not for the upwards force coming from the upstroke of the other twin.
Minke was beginning to twitch and shift more and more, face growing distressed. His master was busy conversing with the knight captain, so no one in the group noticed when Minke started to hold in tiny moans and scrabble against the floor of the dungeon, futilely looking for purchase to pull himself up. It was a few minutes until one of the lesser knights noticed his struggling, and before long the entire party was surrounding him, concerned.
“Minke, is everything okay?”
“I - Master, I think something is – hng – wrong. I- I don’t…”
Minke was growing increasingly panicked now, increased sensation revealing some disturbing truths. He didn’t want to acknowledge the barely felt ways his body was moving, or the tingling burning sensations still a distance away. Especially given the number of eyes that were on him now.
“Let’s try to pull him out, it’s likely the pit is almost done anyway.”
As the knight captain spoke, a number of things happened all at once. The numbing mist finally failed, allowing Minke to feel the entirely of his abused body. At the same time, the tentacle cocks shifted and plunged themselves as deep as they could go. The tentacle in his pussy even forced the tiny bud at the end past his cervix, locking the tentacle inside Minke for the next few minutes. Then, those buds began to ‘bloom’, frilling out into a fleshy bowl of sticky tendrils to lock the tentacle cocks further in place.
Minke collapsed, head and eyes both rolling back as he froze and twitched. He breathed in as though to scream, but when he exhaled there was nothing more than a breathy whine.
The rest of the party panicked, swarming around him like ants as they tried to get his attention or pull him out. It would remain fruitless for just a few more minutes, as the tentacle cocks started to pulsate anew. The first true sensation that Minke felt after the reveal of his body was the swelling of each tentacle inside him as they began to push small, froglike eggs into his cunt and ass, each roughly the size of a quails egg. They caused the ribbed cocks to bulge dramatically as they were pushed through. He could feel his womb being packed full.
He finally screamed, a howl of pleasure and despair as he came again and again and again. The magically suppressed sensations echoed and layered on top of one another when they were released, causing the illusion that they were all happening nearly simultanously.
The knights pulling on his arms heaved one last time, and the pit lost. They dragged Minke’s wailing body out of the earth, but the tentacles still lingered and restrained him, for they were stronger than any man could be. Luther recoiled at the sight, horrified.
The adventuring party was greeted by Minke’s ruined body, legs almost in a split with how intensely they were spread by the controlling vines. They got a perfect view of the translucent suckers supporting and milking his now enormous breasts, as well as the arm thick tentacles buried into his clenching holes. They watched, stunned, as dark bulges moved up the fat tendrils and into Minke’s trembling body.
As the last few eggs were implanted, the pit monster began to pull away. Finished with draining his teats, the suckers detached, leaving red rings around his areolae and tiny scratches on his nipples. They bounced and wobbled from the force of the suction detaching, dribbling the last traces of his milk.
The tendrils embedded into his ass and pussy began to pull back as well, tips curling back into buds before popping out of Minke’s womb and ass. When they finished pulling out completely, Minke’s holes still gaped wide enough for the waiting party to see up into his clenching insides.
The remaining tendrils holding the boy up set him down almost gently, before bolting back into its pit as the knights finally shook off their shock and drew their blades.
Finally free, Minke fell unconscious the instant he hit the ground, exhausted. Luther picked him up carefully, and left the dungeon without looking at much of anything, be it the gazes of his fellow party members or the warped body of his most recent apprentice.