Dressed To Party

Story by iplank on SoFurry

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The Grand Mortuary is about to get an unwanted guest to their costume party. All their costumes are getting spiked, and the realism is hitting levels no one needed- but good luck getting rid of her.


(Living latex, Multiple TFs, fusion, minor body horror)

Amaranth was fairly new to the Grand Mortuary. She started studying to be a Sorceress, so she studied on the surface level. The Grand Mortuary went underground some ways though, hosting studies for Necromancers and Blood Magi in the lower levels, and finally Warlocks with their Demonology at the lowest level. Today everyone would be on surface level though, it was a day off for everyone to relax. During the day it was just casual festivities, mostly clubs offering games to play or food at various booths to try and recruit new members- since more club members equaled more funding. But Amaranth was starting to fret over the next part. As evening fell there was going to be a huge costume party to end the day, but Amaranth could not figure out what to wear! It was a costume party so she could not just go as herself. She did not get out often so was really looking forward to shining at this event... but waited too long to get an outfit. All the costume shops had been sold out thanks to the Grand Mortuary. It wasn't close enough to Halloween so it wasn't like you could pick up a shitty costume from just anywhere.

Amaranth ran out of ideas staring at her wardrobe and decided to take this outside. Time to completely misuse her powers! She waved her hands in the air and rocks started to pop out from the grass outside her dorm, gathering and compacting into the shape of a collar. Someone asked her what she was doing, and Amaranth had not even seen anyone near her- so it startled her into letting the collar crumble again.

"Ah! I didn't see anyone... I was... just trying to improvise a costume, for the party."

The woman cocked an eyebrow at her. "Out of... dirt."

Amaranth blushed. "Well it sounds bad when you put it that way. I was thinking just like, a sexy outfit, with a collar or something. I never wear stuff like that so it is a costume for me. And the easiest I could think of..."

"Mmm, I could... help you. I have some strange magic thanks to a bond with a demon, but I could do this pretty easily. It would be... a bit unorthodox mind you. We would have to team up for it."

Amaranth shook her head. "Any help would be great. I sort of needed this party to try and stand out a bit more."

"Ok! And... you wanted to do a bimbo look, right?"

"Yea, well, it will catch the boy's attention at least, haha. I would settle for any decent costume really."

To Amaranth's surprise the woman's body seemed to melt out of her clothes! It writhed around as a liquid, changing colors rapidly while it looked like it tried to decide on a shape. In place of the woman was now a pink corset, spiked choker, and two thigh-high high-heeled boots. It looked like it was made of pink latex?

"What th- are you still in there?"

The woman's voice resonated from around the items, rather than directly from them. "Yup. I said we had to team up, right? Put me on. Now I don't have to decide what costume I wear- because I will be the costume."

Amaranth looked at them quizzically. This certainly was weird, she had not even heard of magic like this. Living clothing? The demon she contracted must be a higher tier demon to have power like this, to completely reshape a person. She reached for a boot but paused and blushed brightly at the sight. It... looked like a vagina! The opening where she needed to put her foot in looked like the inside of a vagina, a flesh fold opening with muscle ribbed flesh tunnel beyond. It actually pulsed slowly, like it was breathing somehow! Amaranth was not sure about this anymore, but she did not want to offend the powerful demonologist, especially after she already cast the spell for her sake. Amaranth took her shoes and socks off after carrying the items back to her dorm room- she was clearly going to have to strip to put these items on. It felt so slick as she slid her bare feet into the soft innards. The woman had to suppress moans as it felt so very good to be filled. She could feel Amaranth's bare toes squirming deeper in, and when she finished one foot, the other quickly followed just as intense. She wondered how many people at the Grand Mortuary still remembered her master, the demon Beuus, from when he decimated the campus. The woman's name is Jezebel- empowered by the demon that called her his pet. Anyone who remembers their names, knows to fear them.

The corset did not look like a vagina on the inside thankfully, but was not much better. Amaranth stripped herself nude reluctantly and slowly slid the garment on. The inside of the corset looked like some sort of deep sea plant! It was covered in thousands of tiny undulating flesh bumps. It was a bizarre contrast, because on the outside it looked like pink latex- a normal (if slutty) corset. Amaranth shivered as the bumps made contact and felt like a thousand gentle fingers prodding her! She told Jezebel to try and hold them still if she could, and she did. There would be time for fun later- she needed Amaranth in the outfit first. Amaranth flinched a moment when the crotch pulled up to her panties, and several of the nubs adjusted themselves, squirming against her nethers. Even once it was on she needed to shuffle over to a body mirror to try to look behind herself to pull the straps tight. Her breasts were a well shaped C cup, and the corset made sure to show them off fully, pushing them up from below while squeezing her stomach tight. She was actually surprised when she picked up the collar and seen it looked normal on all sides- nothing strange of fleshy on it. That was the moment Jezebel was waiting for though. As soon as Amaranth locked the collar in place she felt oddly light headed. Now Jezebel's voice came from inside her own thoughts.

"Ok, ready to go! Wooo."

"Uh... I don't know... I feel a little off. And this is REALLY racy. Maybe I should put some clothes on over this?"

"Nooo nonono. We just need to add a few more touches. If we dress you up nice enough, people will either not recognize you in the first place for it to matter- or they will be too impressed to judge you."

"Oh... ok, maybe?"

Amaranth looked in the mirror as she felt her lips tingle softly and fill with a warmth. As she watched they started to inflate, turning from red to pink and glossy, like the latex! That was odd, how much control did Jezebel have? Her lips were not covered by anything- Jezebel had transformed part of her actual body. All these strange things in such a short encounter started to make her head spin, which made it hard to focus on any one line of thought. The corset started to squeeze even tighter on its own, Amaranth was going to complain that her legs were starting to tingle from lack of blood flow, but her attention was immediately stolen away to her chest! Her breasts started to swell up! All the nerves inside of them were set off, giving her a lot of radiant pleasure- it was not a touch that was setting off her pleasure so there was no definitive, concentrated source. The corset was so tight that when the flesh bumps squirmed it moved Amaranth's skin with them. The line between one and the other started to blur. Like an infection, flecks of pink started to appear in Amaranth's otherwise brown eyes. Her head felt so light and her thoughts would not stop swirling, it felt like she was really drunk almost, making her giggle absentmindedly. She stumbled a bit and then collapsed to her knees, her legs were now numb from the grip the corset had on her spine, and the pink coloration started to bleed into her legs.

Her breasts continued to grow and her stiff nipples appeared through the top of the corset. Her breasts started blushing brighter pink and pressed into the corset so aggressively the seam between the two became hard to spot. Her lips inflated even more, giving her mouth a permanent clueless expression, as her lips were so inflated they were difficult to move into any other position. The pink started to overtake her iris and her thoughts did not swirl so quickly now- because there was not nearly as many thoughts to spin. The bottom of the corset seemed to feel closer and closer to her, as Amaranth's panties and bra dissolved allowing the soft flesh nubs full access to her bare flesh everywhere. The nubs tugged her pussy open and seemed to press into her tighter. The sensation in her skin and the feeling of the corset moving became confused, and as it pressed still farther into her and continued to pull her open- a pussy opened in the corset! It was now an extension of her own- she could fully feel it! The clit started to inflate into a large round sphere as the pussy itself grew and gaped all on its own, as if demanding to be fed cock. Amaranth felt so good... so warm and tingly, and horny. Her body rocked a bit as her legs quickly devolved and shrank, being swallowed back into the fat pillowy outer labia as they expanded gigantically! Her entire body started to turn smooth and pink, even her hair! Amaranth's arms fell limp at her sides as her stare became vacant, and her arms unknowingly locked in place there. Her thoughts devolved to simply 'cock, suck, cum'. Her breasts were impossibly round spheres with aggressive nub nipples. Her vagina finally stopped growing when it was as wide as her entire hips! Her entire body had turned pink and semi translucent! She had been turned into a gigantic male masturbator, made of pink silicon gel! It would wear off once the costume party was over, but for now she looked exactly like the most slutty thing Jezebel could think of, just like she wanted. A cocksleeve's purpose after all was solely to pleasure dick and nothing else. It didn't get sluttier than that. And because the vaginal opening was so large compared to the rest of her, she actually stood up resting on the edge of her pussy- the passage going through the entire body and connecting to the mouth.

Aside from the single repeating thought of 'cock, stretch, cum', Jezebel reserved one memory of a couple who were a year ahead of Amaranth and helped her out occasionally. Jezebel used a shared memory to connect them, and bled from Amaranth's mind into the couple- August and Slate.

Slate sighed as he held his fist out, August holding her hand flat. Paper beats rock. They were playing to determine who played what role- their costume was a group effort. The two of them were going to the party dressed as a horse! Because he lost rock-paper-scissors, Slate was going to be the back half of the horse while August was the front. At least he had an easy excuse to grab her little bubble butt whenever he wanted to tease her in public without anyone knowing. The mid section of the horse was very loose. Everything behind the horse's shoulders was Slate, so he put the back legs on like pants and pulled the rest up over himself. It was going to get stuffy in that costume really fast- he could already tell. August put the head on and looked at them in the mirror giggling at how silly the horse looked. Neither were able to notice a black substance appearing in spots on the inner lining- Jezebel's latex goo starting to manifest.

August insisted they wear the outfit for a bit now before going to the party and getting re-dressed, so they could get used to it. It wouldn't do to be learning how to move in it at the actual party; they would be tripping over other people. Slate twitched his nose- there was an odd very subtle smell in the suit, but he had no idea what it was. It was not really good or bad. He could not see out of the outfit, he was relying on August entirely to direct them so he had nothing else to occupy his mind with, becoming increasingly curious as to what the smell was. Before long he found himself with a stiff boner, from the smell or the fact August's round butt was inches away from his face. He adjusted his stance without even thinking when he felt his nuts gently rub on his thighs. August tried to mimic the movement of a horse's legs with her own, watching them in the mirror still and just made herself giggle more. She felt oddly giddy and airheaded. Neither noted her giggle sounded a bit like a horse's neighing. Her perception started to blur a bit and she found herself trying to get more into the role of a horse instead of simply the appearance. Her eyes had merged with those of the outfit- Jezebel's latex goo was working like glue, spreading across the inside of the suit and fusing it with her face and working toward her body too. The teeth in August's goofy smile grew into large blocks, stretching her face a bit to make room.

Slate felt his erection slide past the waistband of his pants a bit but figured it was fine since he was costumed anyway- no one would see it regardless. The pants pressed into the bottom of the shaft less and less as his clothes between himself and the costume started to dissolve in the warm air trapped in the outfit. He kept taking very deep breaths, bringing his face closer to August's butt. Was that smell... her? Was she horny too? It smelled delicious, like a mare... er, woman in heat? For some reason Slate kept thinking of mares instead of women, wanting to mount them for some reason. He never had a kink for horses before, the costume must have inspired it. His erection started to bob with his pulse as it inched longer and bigger. Again he was unable to fully notice this, because when it would have touched the costume's crotch, the outfit simply moved out of the way as if it were liquid and clung to his shaft like a second skin. As it pushed out on the outside of the costume, it turned from the brown cloth to smooth black. Jezebel's latex goo started to drip down the legs in excess and pool in the feet, and when Slate adjusted his legs again for his growing black balls his feet clopped against the floor! The pooling goo was hardening into hooves, for both August and Slate.

August's teeth continued to grow a bit, and then a gap formed between front and back, stretching them apart and causing the bones in her face and head to crack and pop as it grew tremendously, meeting and matching the outfit in shape and size. Like with Slate's cock when the two met, the costume practically melted into her actual face, giving in the coloration of a horse's. She let out another half nicker, half giggle and reared her head back a bit, feeling the veins in her neck tense greatly for a moment, and then the muscle in her throat bulked up tremendously! Surprised, she reversed and bowed her head and her spine gave off several very loud, muffled pops and her neck extended in length! Slate was completely obsessed with her butt, and imagining the big muscular butts of mares prancing in fields, flaunting for him. His erection continued to grow larger and longer, the head getting stretched wider and broader by tension in what little remained to distinguish costume from his actual body. It was a horse's dick now! He breathed very heavily to take in as much of that enticing scent as possible, and breathed so hard it caused the costume to collapse and puff out with his breaths. But each time it puffed out a bit less, and collapsed a bit more. When he felt it touch his face it surprised him, causing him to gasp, which then yanked it tightly to him and also filled his head with enough of the scent of mares that he could not restrain himself any more. He rammed his face right between August's bouncy butt and they both locked up from the sensation. His face practically melted into her butt cheeks, causing him to fall further into her! His neck met her tail bone and the two compacted till it was just one continuous spine! Their fused body trying to figure out what to do with the displaced mass just shoved it all outward, rounding into a barrel shape before settling on what it needed and where.

Because their spines linked, his entire nervous system was now feeding into August- she could now feel every twitching, throbbing inch of the horse cock below them now. The costume continued to collapse- the vacuum Slate created with his last breath was forced forward now that the torso was fully merged with the actual flesh. The costume yanked tight, trapping August's arms at her side and squeezing tightly. Her body felt so oddly soft, and all of her organs were squeezed out painlessly and fell into the lower body that used to be Slate. The double organs merged together, creating a single set of organs at double the size. The costume merged with her legs and tightened, revealing the tight sinuous muscles of a horse and continued upward. What used to be her arms now spread and bulged out as powerful pectoral muscles and shoulders of equine proportion! August remembered there was supposed to be someone there with her and tried to call to them, because her cock needed someone's hole. Slate of course did not answer, and her call was nothing even remotely understandable anyway- she could only produce horse sounds now! She- or, he now- shivered as his mane and tail hairs properly connected and came to life as living hairs. The hooves, mane, teeth, and tail were authentic material but everything else was brown and white dappled latex- black on the anus and genitals. He was so horny, but his mate was no where to be seen. He did not remember what they looked like, or what gender they were. Slate and August had become one- so August remembered Slate, and Slate remembered August. Their combined mind could not settle on which person was the mate. He nickered as a sudden electric pleasure vibrated up from his taint and almost instantly brought him to orgasm! The horse cock ejaculated white latex goo, as Jezebel's consciousness was transferred to the new separate puddle to seek another person to 'help' with their outfit.

Stan, Mack, Dan, and Jack grumbled at their own costumes in the locker room. They were the stars of the Grand Mortuary's baseball team; Homerun Hellions, so they were used to being in a locker room together. It made sense since they were a team that their costume would be a group effort too, but none of them especially liked the idea. The options were scarce when Dan went to get them outfits for the party, so he took the only team outfit- one single outfit for all four of them! Their outfit was a Chinese dancing dragon! Like Slate and August- they headed off in a game of rock-paper-scissors. Only one person can be the head, everyone else had to stare at someone's ass the entire rest of the night. At least unlike the horse costume- the dragon was not enclosed- it was held over them, their actual feet were not covered so the costume can breath. Dan actually won the head, but everyone else was mad at him for picking this costume so it was a 3v1 vote that Dan was disqualified from winning the head. So the pecking order was Stan, Dan, Mack and then Jack.

They wore light clothes to minimize heat build-up and all got under a section of the dragon outfit. Stan actually had it the hardest because the head was the heaviest part to hold up, and traditionally is the part doing the most movement. They each in turn felt a slight movement on their scrotum- they all thought it was a drop of sweat, but it was actually Jezebel arriving- seething into them. It was difficult coordinating the dragon, since it was four people- if one lagged it tugged on the overall form and threatened to yank someone else off their feet. As they practiced in the locker room though, they started to get hotter than they should be, blaming it on the costume though that was not the case. Their balls started to swell a bit as Jezebel used its natural fluid production to instead produce more of her special goo and saturate more of their bodies. To the boys it felt like they were pent up, making them feel horny. Being in close proximity to only each other, it created confused feelings, since they were left to think the reason for their sudden arousal was each other. When Jezebel was a student here she was cucked hard- so it was only natural that she would want to spread pleasure here now so that no one else suffered her fate. Their clothing started to dissolve as their body temperatures went up so they were unable to tell the difference. Soon their practicing stopped and turned to awkward absentminded movements. They were horny and their minds cloudy thanks to Jezebel's dark magic. Being all straight males though, they were too stubborn to engage each other, even without the ability to think properly on it.

Jezebel grunted a bit in frustration. She drown out all their thoughts and still they wouldn't use each other for pleasure! It shouldn't take much though, she just had to nudge them in a direction and their dicks should do the rest. She could also just smush them all together immediately too- but that wouldn't be any fun. So she saturated the dragon head, increasing its weight, causing the nearly brain dead Stan to drop it on himself with a hollow thud. He moaned loudly as his head throbbed, but did not ache. It was not a migraine sort of throbbing- his head was actually increasing in size! The dragon head started to shrink with throbs perfectly in sync with his growing head, till the two met in size, causing his head to expand the mask till they smushed together and became the same thing! He felt his nostrils join to the back of the mask ones and then expand greatly to match, finishing with a few wisps of flame on a powerful exhale. The masks jaw seemed to suppress till they met and fused, but then expanded back to how it was, dragging his along with it. Jezebel's magic turned both the costume and the person to her living latex, so they were indistinguishable from one another. A lot of people equate the dragon tendrils on their upper face to a mustache, but that was not accurate at all. They were like a catfish whiskers- which means Stan can feel down the entire length of them, allowing him to perceive motion farther off his body. Stan tried to get up when the changes slowed but that only caused him to fall on his face- his head was many times too big for his neck or even body to possibly lift anymore.

In his barely thinking state, Dan went to help Stan but ended up falling onto his naked backside because the costume around them no longer moved like it should. When he was bent over the back of the dragon and his own back fused, causing his vertebrae to grow tremendously to match, but also preventing him from standing up or getting off Stan. Stan was still trying to just get up, and got up onto his arms and legs with his head still anchored to the floor- this unintentionally thrust his butt into Dan's stiff dick. Without clothing to act as a barrier, Dan just thrust forward and Jezebel immediately partially locked them together so the penis could not be fully removed. Stan couldn't think enough to question the situation, and only processed that something felt good, so he let it. The penis and anus started to meld together though, and pleasure started to generate less from friction in those places and come instead from nerves rewiring. Two dicks, two prostates, two anus- their nervous systems were getting wired together causing everything to double! Dan put his hands on Stan"s thighs at first but they fell more limp as he humped and smiled dimly, and his arms started to merge with Stan's legs! His toes all became larger as huge claws emerged from the ends making them more draconic- though oddly still relatively human. The costume did not cover their legs after all. Dan's chest started to fuse into Stan's back, and then his neck and chin started to sink in locking them together completely. With Dan reinforcing Stan's backside with his body though- Dan now had the strength to lift his giant head! His own upper torso started to bulk up, swallowing his arms into it as it began to reform into a neck. He tried to speak but the huge mouth only produced grunts and growls, causing the air to wave from the heat of his breath.

Mack seen the two in the front fucking- from his limited field of view none of the other changes were visible. He wanted that. He used prostate stimulation before- it was the male's pleasure center after all, and being as horny as he is now he really wanted something to ram him from behind. He glanced back at Jack but Jack did not take the hint- his mind was basically blank. Mack took some steps back and bent forward a bit to nudge his bare ass into Jack's erection, and Jack thrust forward weakly, wanting pleasure but still confused. Becoming a bit impatient Jezebel brought down part of the rear costume and just pushed lightly on Jack's anus, surprising him into darting forward. Thanks to their position, moving forward thrust into Mack, who then was staggered forward and thrust into Dan! Or what was left of Dan anyway. As soon as Mack grabbed Dan"s butt his hands and then arms started to sink into the flesh and the bulk moved down Dan's legs just like Dan's arms fused to Stan's legs. This caused the torso to eventually scrunch up because of the two odd anchor points of fusion, and when the back bent far enough over the costume fused to it, extending the draconic back. This repeated again for Jack only moments after, but his changes were more extreme than the others, because he took up the rear.

When the bulking spinal chord reached what had been the end of Jack, it continued. His spine grew out into a tail that quickly increased in size and length, the costume merged with it and gave it a line of red hair down the middle and a plume of hair on its end. Another strand of latex goo split from the underside of the tail though, looping back the other way and merging with his taint! His hips popped loudly and exploded in size. He groaned loudly as pleasure surged in his body, feeling his prostate grow many times over, then the growth surge down his taint, inflating his balls gigantically. His balls turned green like the flesh of the dragon as they converted to latex. His dick started to grow tremendously, gaining almost a full inch with each slow but powerful thrust into Mack. Mack felt like it was plowing right through him though- it did not hit a wall when it should have. The huge and still growing cock felt like it lanced his own prostate and kept going- like it was growing up into the base of his own cock. And, it was. You could see the bulge travelling up the comparatively tiny dick of Mack and stretching it bigger as more of the superior dick rammed itself in. The two became one and then it grew huge out of Mack. Once it was its full gigantic size, it throbbed hard and yanked out of Mack so that it was once again hanging from Jack's crotch- except there was nothing on Mack's crotch anymore. He did not need to penetrate Dan anymore anyway- they were so fully fused that you could not tell they were human. The changes progressed from the front back, so by the time Jack was finishing his changes, the others already looked like a living version of their former costume.

At the party, they all appeared one after another, with only a half minute between, to give the other guests time to puzzle over what the heck they were looking at. The giant cocksleeve Amaranth, the stallion Auglate, and the dancing dragon Sdanmajack. They all made the sound of twisting latex with every movement. Security immediately assembled, confused as to what was going on but knowing it was not ok. Then a single bead of latex goo rolled from each of the three, and from it exploded the form of Jezebel, in a casual outfit.

She grinned like a psychopath and took a bow. "Been a while, huh? Beuus sends his regards."

The security guards rushed to her, past an older teacher who tried to stop them. "Wait- she is with Beuus! She is too dangerous, you'll only irritate her, just let her have her twisted fun so she will leave."

The guards here were too green. None of them had been here when Beuus was fully manifested in the mortal plane. Jezebel glanced at them coming at her and huffed. Just behind her, the dragon's body lurched, shifting and twitching unnaturally. With loud cracks and pops its form yanked itself into unnatural angles and its legs ripped in half, creating two new ones with a proto leg in between. Then the set of legs behind that did the same, then the set behind that. Then its spine yanked even longer and even more limbs grew out from the new segments, and then even more than that. Its giant form twitched and yanked around from the newly forming muscle and nerves causing it to be unable to control most of its movements. It slammed into the floor between the guards and Jezebel without even meaning to. Its body got longer and longer and even more and more limbs. Huge horns grew from its head and grew extremely long, turning a neon orange in color, as well as all of its limbs, which simplified the more they multiplied till they looked almost like the horn-like antennae. What had been a dancing dragon was now a gigantic centipede! It raised its head, but gave a few jerky movements again like it was possessed and slammed itself down onto the stallion! The stallion's head vanished into its lower head. The head started to extend and it grew large nostrils and leaf shaped ears. The horses neck was half inside the centipede, and its entire spine was fused to its underside, but not submerged into its form at all. The stallion grew two more sets of horse legs, and several of the legs on the centipede around it became semi-horse like, though still covered in latex chitin. The horse penis throbbed several times, driving the creature mad with lust and quickly attacked Amaranth- being basically just a giant pussy. It nudged her over and quickly thrust in, but as soon as it did the cock started to surge in size, quickly fusing with the inside. Amaranth's body started to turn darker pink, then a grey-pink, then a pink hued black as it became one and the same with the horse genitals. Since they now shared mass, the horses balls grew monstrously huge and Amaranth became its cock, though the silhouette of her arms remained on the sides of the shaft, and her labia and clit were now the medial ring on the cock.

The giant freakish monster slowly turned to the guards, making a clicking-hiss sound as it leaned down toward them intimidatingly. Jezebel just grinned. "So. Lets party, shall we?"