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The Monster In His Closet

Summary:

There's a creature in Jimin's closet, with purple, gooey tentacles. Curious Jimin wants to try out new things, but he doesn't know what the monster is actually gonna do to him until he finds out by himself...

Notes:

(See the end of the work for notes.)

Work Text:

The thought of a monster living inside of one's closet may scare many people; however, as Jimin found out that there hung one out in his wardrobe, right between his clothes, it was certainly not what he had expected it to be.

 

To be fair, he didn't have any idea of what it could look like at all before he witnessed it with his very own eyes; but what his gaze was met with was truly not coming from this world. He did not anticipate a creature that was able to grow whenever it felt like it; with gooey, lubricated tentacles that glistened in a dark purple tint in the moonlight, their sticky slick clear and see-through, smelling almost sweet.

 

But what he least awaited was the fact that the foreign monster seemingly had a partiality for human seminal fluid; that's what he shockingly had to realize in more than just one nights.

 

Providentially, he was able to stuff the creature back into the depths of his closet each time it came out, although Jimin was a rather short guy (which of course didn't define how strong he was). It wasn't very powerful, maybe even weak, at least that was what he had thought until he was undoubtedly proven wrong.

 

-

 

It was a Friday night just as so many others; Jimin came home from work genuinely late, with no wish other than falling into the heavenly soft mattress of his bed and finally being able to get all the sleep he had been craving during the week. His head ached a little due to being quite stressed, but he decided not to take any painkillers since he was sure the pain would pass soon enough anyway.

 

He kicked off his shoes as soon as the door was closed behind him, groaning in annoyance as he threw his bag on a chair nearby and walked straight into the bathroom, did his nightly routine and even took a quick hot shower before making his way to his bedroom, softly humming a melody that had been stuck in his head for a while now. Climbing on his bed, he sighed in relief. There he was, exhausted from another stressful week full of work and annoying co-workers, however he knew that there were far too many thoughts in his head which would make it impossible for him to fall asleep.

 

Since he was quite a lonely guy, single as a pringle, got no love affairs or whatsoever, and had nothing better to do, he sneaked a hand into the pants of his pajamas to play with himself a little. Didn't everyone always say that jerking off was a good stress reliever and cleared up your mind like nothing else could? Well, if you asked Jimin, he would've definitely agreed to that.

 

He closed his eyes and got himself into a more comfortable position, starting to make up scenarios in his mind. There certainly were a few people he felt sexually attracted to – most of them were male – and he just unintentionally commenced to fantasize about one of them.

 

Jimin bit his bottom lip and trapped it between his teeth, lifting his hips a little to push his pants further down before he wrapped his short fingers around his girth, dragging his thumb over the tip that was already leaking some pre-cum, smearing the drop and using it as a sort of lubrication. He hadn't touched himself for so long, his tight schedule never left any space for things like that, so it was no wonder that his body reacted more intensely than usually to each of his touches.

 

A quiet groan slipped over his lips as he proceed, his hand fastening its movements with each passing second. Slick and wet sounds were echoing through the room, occasionally followed by a moan he couldn't hold back as his imaginations got wilder. He flicked his wrist whenever his fingers reached the head of his cock, palm working on the tip.

 

He spent a good amount of time like this, thrusting up into his fist and leaning his head back, his closed eyes opening for a brief moment every now and then. Soon enough, he felt the heat pooling in the pit of his stomach, his breathing now erratic and his thrusts upwards growing sloppier. His climax approached within a manner of seconds, Jimin's lips parted as heavy pants left his mouth, his cheeks flushed in a pretty, pinkish colour. The ecstatic feeling made his belly feel fuzzy, his hand speeding up just a little, adjusting the pace perfectly.

 

With a shaky moan, he came, his free hand lifting his shirt just a moment before he spilled his liquid all over his stomach, the fluid pooling on his skin. God, he knew what was about to happen next. The door of his closet would open and a tentacle – or maybe two – of the weird creature would slip out, making their way close to Jimin.

 

Admittedly, the male was curious about what would happen if he didn't stop the tentacles, he couldn't deny the fact that he wanted to know what they would do. So that night, instead of pushing them back, he kept lying on his bed, calming his breathing which was still somewhat uneven from his previous orgasmic high. He opened his eyes again and lead his gaze to the wardrobe in his room, and he was right, it opened the slightest bit just a minute after, the tip of a tentacle peeking outside.

 

Jimin gulped, unsure about whether this was really a good idea or not. What if the monster killed him? Maybe it would strangle him, or even worse, rip him apart without hesitation.

 

He held his breath as the shiny tentacle moved closer to him. It didn't seem to have eyes or something like that, he assumed that it only had a sense for smell. Weird.

 

The limb swiftly sneaked closer, placing itself on Jimin's thigh, making his muscles tense as he felt the slimy, wet substance on his bare skin. It wasn't cold, but not warm either. For some reason it didn't gross Jimin out, and he allowed it to rest on his skin. The sticky suction cups creeped over his thigh, wetting it a little with its gooey substance.

 

It didn't stay there for long, though, because soon it moved downwards and stripped both his pants and underwear completely off him, giving him more movement for his legs. Jimin bit his lip and stared at the tentacle equally horrified as amazed, waiting for its next move. It made its way to his abdomen and dipped its tip into the pool of cum, almost as if it was trying to get itself even slicker and wetter than it already was.

 

Without the blonde male even realizing it, a second tentacle moved out of the closet, rapidly coming closer and wrapping itself around one of Jimin's legs, causing him to gasp in surprise as it pushed his legs apart. The limb that was moving at his stomach just a second ago now placed itself right between his legs, its gooey head rubbing right against his rim and Jimin couldn't help but let out a quiet moan at the new sensation, blush painting his cheeks once again. It kept smoothly stroking, the tip almost seemed to try digging itself inside, causing Jimin's hole to clench in dirty excitement. The clear fluid seemed to be similar to lube, at least it was able to fulfil the same purposes.

 

Every doubt whether it was a good idea to let this unidentified, scary creature touch him suddenly faded away in the span of a second as the very tip of the tentacle pushed inside, making his cheeks turn even redder as he felt a wave of guilty horniness falling over him. Arousal hazed his eyes and blurred his vision as it went in deeper, stretching him out.

 

Its movements and actions went straight to his cock, which was swelling rapidly by now. It wasn't at the point of full hardness just yet, but if this proceed, it certainly would be. A moan erupted his throat, hoarse and raspy, filled with shame as Jimin knew he was not supposed to enjoy this; but he could feel the excitement pooling in his gut, could feel a fuzzy feeling of arousal in his abdomen as the tentacle started to thrust into him.

 

He kicked out with his leg that was held in place by the other limb, causing it to tighten its grip and he let out a quiet whimper. He could only watch as more tentacles left his closet, one tenderly taking hold of his wrists, tying them together and pinning them down at the headboard of his bed. The blonde squirmed underneath its touch and tried to free his arms, not fully submitting the strange being just yet. However, his reluctant actions only earned himself a particularly hard and deep thrust.

 

The next moan he let out was loud and shameless, but it broke and turned into a pathetic whimper as he felt another soggy limb right at his cock and he flinched. His length twitched, still somewhat sensitive from the orgasm he had just experienced, and Jimin squinted his eyes shut as the tentacle curled around his girth, holding it surprisingly tenderly and starting to slowly stroke it.

 

His poor mind didn't know what to focus on; the tentacle working on his cock or the one filling him up so well, which was now slamming harder into him. He only knew that it felt damn good, a questionable pleasure, turning him on beyond words. Jimin cried out as another limb slipped inside of him, taking him by surprise.

 

"God, n-no, it's too much," he begged for the creature to stop, but of course it didn't listen to him. Instead, it continued, proceed to use Jimin's body for whatever reason. Yeah, why was it even doing this? Most certainly not to please Jimin, it must've had other reasons, right?

 

He arched his back and moaned as the two tentacles fucked into him in sync, gliding across his velvety walls, and the pain of the stretch soon turned into an almost unbearable pleasure. Altogether, the tentacles inside of him were way past his usual intake whenever he got laid, almost the size of three cocks by now, stretching him out and finally, finally one of them brushed over his prostate! Jimin bucked his hips up and arched his back, letting out a whiny moan.

 

He struggled to breathe as he felt one of the suction cups of the tentacle seal right at his spot and suck, and that was the point when he felt his high building up within a blink of an eye, unable to hold back any longer, heavy pants slipping over his lips, followed by breathy moans.

 

Another intense wave of pleasure rushed through his body, stronger than any before, and it made his lifted hips quiver. Cum spurted out of his cock, trickling down the tentacle that was wrapped around it and wetting his lower abdomen. Jimin gasped for air, the aftershock of his ecstatic orgasm feeling like it was tearing him apart, and a broken, high-pitched moan erupted his throat when the tentacles didn't stop, not even slowed down the slightest bit. He squirmed in overstimulation, tears forming in the corners of his eyes.

 

Since his eyes were closed, he didn't see the next tentacle coming, tugging at his plump, luscious lips and forcing them to open wider. Promptly, his eyes shot open and he let out a quiet wail, his body trembling in fear and dirty anticipation. The limb made its way past his lips, inside of his mouth. Jimin sighed in relief as he realized that it wasn't as thick and massive as the other ones. He didn't even find himself hating the taste of it; no, it was the complete opposite. The gooey substance tasted sweet, carried something addictive with it, something that let Jimin's tongue long for more, his taste buds almost going crazy from how good it was. The fluid was almost as sweet as sugar, making his mouth water and a fuzzy feeling form in the pit of his stomach just from the aroma. Having the tentacle in his mouth, feeling the girth of it stretching out his lips, Jimin felt even dirtier, and being the problematic guy he was, it was just another huge turn-on for him.

 

The level of humiliation as he was being used by the creature, allowing it to control every of his movements, letting it put him in the right positions and taking control of him with ease, he loved it so much. Loved being dominated like this, loved the overstimulation he was receiving by now, loved the wet sounds the tentacles created as they fucked into him and the stinging, painful yet pleasurable experience whenever one would drag over the tip of his spent cock.

 

The tentacle forced its way down his throat, but for some reason he didn't have to gag, nor did he suffocate. There was no lack of air, it almost seemed like the limb had an own system of pumping oxygen into Jimin's lungs as it completely abused his mouth. Saliva dripped down his chin and he tried to free his hands once again, a tear rolling down his cheek.

 

His aching, overly sensitive cock even got up again as one of the tentacles kept sucking on his prostate, and Jimin whimpered weakly around the limb in his mouth as he felt himself getting hard all over again. Eventually, the suction cup released that spot that made him see stars and instead went even deeper, impossibly deep, causing Jimin's eyes to roll back.

 

The pace at which the tentacles thrusted into him increased, and as he stole a quick glance down on himself, he thought he was about to faint.

 

His belly had a bulge, showing the clear imprint of the two tentacles inside of him, allowing him to see how they moved, and a muffled moan fell from his lips at the sight. He felt them press against his abdomen from the inside, and now he could watch them from the outside as well, another tear of pleasure escaping his eye and he clenched around the limbs. They fucked him so well, deeper than any human ever could, stretching him out even more with each thrust they made, smoothly rubbing against his walls.

 

Just as he was about to forget about the tentacle around his length, he was ripped back to reality as it started to move faster again, the glide slicker due to the wetness of Jimin's cum. His cock twitched as it still felt squeamish, not ready for more. The tentacle, however, did not seem to care about that, much rather made it Jimin think that it was craving even more, wanted more of his body than he could give.

 

He felt so utterly fucked out, his third climax building up rather quickly as the tentacles kept their movements up. Jimin attempted to swallow the excess saliva in his mouth, but it was hardly possible at all. His throat spasmed around the limb and it twitched slightly, making his face turn pale in fear of having his throat ripped apart.

 

The pain that came with the indulgence was overpowering, yet Jimin enjoyed it, feeling like a little slut as noises of pleasure erupted his throat every now and then. He thoroughly allowed the creature to humble him, submitted fully, found himself liking the way it wrecked him, its tentacles leaving wet and gooey trails of fluid on his skin that dribbled down his body and drenched the sheets of the bed.

 

Jimin thought he had reached his breaking point as his third orgasm rushed over him, the tentacle around his cock squeezing and milking him dry, longing for every single drop of his ejaculate, but he had almost nothing left to give.

 

The tentacle in his mouth made it painful for him to let out any loud noises, drowned his whimpers and quiet moans. Jimin's cheeks got wet as some more tears streamed down his face, leaving a glistening trail behind them as they stained his bed when they fell down.

 

For a fleeting moment he thought that he finally got to rest now, but instead, his eyes caught three more tentacles in their horrified gaze, nimbly approaching the bed. He weakly tried to tear his wrists out of the firm grip of the tentacle that pinned him down, kicking out with his legs at the same time. A yelping sound came out of his throat as one of the new limbs harshly grabbed his other ankle, spreading his legs further apart. Good thing he was so flexible, otherwise his legs would've ached a lot from the sudden rough movement.

 

While closing his with tears filled eyes, he felt something wet creeping up his inner thigh. It was a tentacle, of course it was, its suction cups sealing themselves on his pale, flawless skin before they sucked. Jimin's puffy cheeks turned red in surprise at that action, and he realized that the tentacle would probably leave marks all over his thigh.

 

God, it made him feel so dirty. The next day he would get up and look into the mirror, finding himself marked up with dark, bruise-like hickeys on his thighs, their colour just as purple as the tentacles themselves. He would get reminded of the happenings of that night again, and the thought alone would be enough to make his mind all fuzzy and aroused over and over again. Who knows, maybe he would let the foreign monster fuck him again? Every moment of this was so worth it, he loved being treated like a toy, loved to let the creature abuse his weak human body completely, so he seriously considered letting it do everything one more time.

 

All the actions and movements combined were letting his length slowly but surely harden anew, twitching in interest as his sensitive body kept getting stimulated, his hole loose around the tentacles and it hurt as they pounded into him still like there was no tomorrow.

 

Jimin squirmed and quivered, but not as an attempt to free himself. It was an uncontrollable reaction of his overused body, which he wasn't able to regulate anymore. Sparks of pleasure were sent through his whole aching body by every movement of the tentacles, no matter how little it was, his body reacted to everything with the same slight tremble.

 

"P-please," he tried to speak around the tentacle, "no m-more". His words were slurred and muffled, and of course, the creature wouldn't listen to his pathetic begs. There was no sense in trying to convince the tentacles to have mercy with him, they wouldn't stop until they were satisfied, but Jimin liked the idea of begging. He liked to use his words during sex and had always been quite vocal in bed, no matter whether he bottomed or topped. It was turning him on to beg for something, regardless if it was for release or for his dom to finally start spoiling him. Being the switch he was, he also loved the idea of hearing his sub, loved to see and hear them cry for his cock, wanted them to lose their mind as he teased them until they fell apart.

 

His tongue got pressed down by the limb in his mouth, and as he looked down again, he could still see the bulge on his stomach. Did his heavily hooded eyes play a trick on him or did it really grow bigger? The tentacles must've caused the bulge to stretch wider as they pushed deeper, thrusted harder, filled him up so heavenly.

 

Jimin felt his heart pound inside of his chest, every inch of his body growing tired, feeling like he was about to black out. He forced his heavy eyelids to stay open and whimpered, hearing a faint 'plop'-sound as the other limb stopped sucking on his thigh and released his skin. He was right, there indeed were marks left, blooming all over his inner thigh.

 

Suddenly, something felt odd. The tentacles were pulsating, stopping in their tracks and pumped a strange liquid into the male.

 

Wetness spurted out of the tentacles inside of him, filling him up with their cum-like substance, the white, almost purplish fluid dribbling out of him as it was too much to keep inside. He cried out and almost bit the limb in his mouth, causing it to twitch vigorously shortly before it shot its liquid down his throat. Jimin's eyes widened in fright, fidgeting with his legs as his body got filled up by the foreign fluid.

 

He couldn't deny that it felt good, after all, though. A drop of semen ran down his cock as he was driven right over the edge, eyelids fluttering and body spasming as he came, getting off on the feeling of fullness. The intensity of his final orgasm knocked out his breath, his eyes rolling back, it was almost considerably as painful. He couldn't give any more of his cum as there was nothing left, his previous climaxes had used up everything already.

 

The moment seemed to last forever, but eventually, the tentacles let go of him, pulling out, creeping away in swift movements, leaving Jimin a sobbing, whimpering mess, covered in fluids consisting of sweat and cum. His hole clenched around nothing, feeling cold and empty as he missed the tentacles inside of him already, their moisture dripping out of him. He swallowed the rest of what still was in his mouth, then tried to catch his heavy, uneven breath, his heart eventually calming down and beating at its usual pace again.

 

He was far too tired to get up and clean himself, or to change the sheets, so he just pulled the damp blanket over him and closed his eyes, his head tilting to the side as he drifted off into a peaceful, well-deserved sleep soon after.

 

Who knows, maybe this wasn't such a bad idea after all?

Notes:

Thank you for reading this!! It's my first time writing tentacle smut, so please don't judge me for the way it's written.
However, I had fun writing this story so I thought why not publish it here?