The Best Halloween Costume (1/2)

Story by Serathin on SoFurry

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A sequel to Looking For A Good Home, Hunter the symbiote wants to go out and about and wants his host Diesel to attend a Halloween party so that he could look like a costume and go out in his true form. Surely nothing wrong can come from that, right?

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"Absolutely not," Diesel said as he walked around his apartment. The naked gatox watched as his rubber covered hand toyed with the piece of paper that he had gotten in the mail while the furred one under his control continued to eat breakfast. On the paper was an invitation to a Halloween party complete with clip art pumpkins on it.

"Oh come now Diesel," the symbiote's voice echoed in his head as that hand that wasn't under Diesel's control waved about the Halloween party invitation. "I've been behaving myself and it's a rare opportunity for me to be out in public. Not to mention with the lab being relocated all the pressure of being hidden is off, let's cut loose and celebrate!"

Diesel just shook his head as he sensed the need of the symbiote in his mind. It had been weeks since Hunter had come into Diesel's life, the rubber symbiote currently mostly hidden in his body since they had to go to work soon. He had been surprised at how well the two of them have acclimated to their shared living situation; Diesel was allowed to continue to live his life as before and Hunter was allowed to be out and about during the night on the condition that he didn't create any more hosts while they figured out what to do next. The merged creature was incredibly popular at the rubber and fetish clubs around the city... and though the gatox had kept a weather eye on the symbiote they still had half a dozen converted thralls that had practically begged to be symbiote hosts once Hunter revealed themselves.

"I'm sure that rubber place that we frequent is having a Halloween party probably," Diesel said as he took his plate and brought it to the sink. "Why don't we just go there?"

The sigh that the symbiote gave was so powerful it came out of his own mouth as the rubber-covered hand rubbed against his chest. "I do not wish to pretend to be a suit," Hunter explained. "They would notice the change if we were to reveal our true self and this party would give us a chance to make up something, or use one of those fictional characters like a superhero. Plus you know you can trust me to handle myself..."

"Tell that to the husky that you took over last weekend," Diesel retorted before their shared body shuddering slightly as their mind went back to the gimp-suited canine. remembering the latex he had been wearing stretch and split to reveal the rubber scales of the transforming male. The hood on the canine's face split its gag when in lengthened into that of a gatox, the entire time their cock buried deep into his tailhole as his rear thickened with muscle. "We were just lucky that Renard needed a roommate, if it wasn't for the sergal we would have another logistical nightmare on our hands."

Despite the rebuke it was clear that Hunter still had other ideas on his mind as the hand he possessed began to rub his crotch, the half-hard member flopping out of his boxers as he saw it was turning shiny. Diesel warned that he couldn't take another sick day and the symbiote retracted, even relinquishing the arm that it had been controlling through breakfast. The gatox flexed his fingers as the last of the rubber disappeared under his disguise, taking a second to remember how they worked before he got dressed the rest of the way. As Diesel left his apartment he knew that he was in for a long day, even though the symbiote would make sure that he wouldn't sport an erection it was clear that the accompanying lust was going to radiate through his body for the day...

The entire day Hunter didn't let up on the gatox as he continued to work, and though he didn't do it by talking to him Diesel could feel the desire to go burn throughout his body. No doubt the symbiote felt his reluctance in turn and the it wasn't long before the two had mentally had a conversation to settle it once and for all. Even though he didn't think it was a good idea he knew that the rubber creature was being good and their relationship did involve some give and take between host and symbiote. That meant that he had to do the same and finally he relinquished, a surge of pleasure shared between the two before they began to plan.

By the time the day was over and the two got home they had formulated a plan that would work for the two of them, and though it required quite an extensive internet search and several trips to the costume store they finally had something that would pass as a costume. When they were finished it was time to go to the party Diesel could feel Hunter starting to take the lead of their shared body. Diesel took a deep breath as he felt the symbiote start to assert himself and take control, something they had agreed upon beforehand. It had been a long time since he had gone into his full rubber form and though he knew that it was always risky he couldn't deny that it felt fantastic.

The gatox's breathing quickened as he felt the symbiote's power course through him, his muscles twitching and straining as they began to thicken. Almost immediately the fur on his body melted into itself and the new skin shined in the light as he continued to grow. As Hunter asserted himself Diesel grew aroused with each spurt of growth, his dick throbbing as it lengthened and grew the bumps and ridges of the symbiote. The couch that he sat on began to creak as his frame grew bigger, and when Diesel let out a moan his tongue stretched and writhed out into the air.

"I almost forgot how good this was," Diesel's mouth exclaimed as Hunter began to talk through him once his jaw had finished growing with a loud crack, flexing his heavy pectorals and running a clawed hand over his latex abs. "Definitely better than just going out as your rubber suit, don't you think?" Though Diesel no longer had control over his ability to speak he knew he didn't need it, the symbiote could sense his agreement as the monstrous rubber creature stood up and continued to stretch out his new form while the blue and grey latex swept down his tail to complete his transformation. Diesel felt himself move over to the bedroom where he had a full-length mirror, the muscular rubber male looking over his enhanced body with a growl of approval.

After giving his enhanced cock a squeeze Diesel found himself regaining some semblance of control over his body, though it was like being a puppet where he could feel the symbiote still holding the strings as they moved to the bag of items they had bought earlier. "Alright then," they said with a smirk as they pulled out the bottle of body paint with a smirk. "Let's get started..."

*******************************

As night fell on the city the Halloween festivities had just begun, people were out on the streets in full force dressed in various costumes as they celebrated. While there were areas that were extensively kid-friendly with things like trick-or-treating and games there were also areas near the bars and clubs where everything was extensively more adult-orientated. The rubber gatox was going to neither, instead their destination was an apartment further into the city. Diesel could tell that Hunter was enjoying the looks that they were getting as he took the lead, the rubber symbiote able to strut his stuff as both males and females eyed them up with arousal and lust. It was definitely the time for fun and frivolity as they also felt their hosts having a good time elsewhere in the city, no doubt also in their latex gatox forms too.

"It's a shame that we couldn't bring one or two other hosts with us," Hunter rumbled as they tried to contain themselves while they continued to walk down the streets. "Would be nice to have them included on this."

"I don't think there's going to be a lot of people there," Diesel replied mentally, feeling the disappointment in the symbiote. "If we bring a friend along it's going to be noticed, remember that we're going incognito here."

The symbiote nodded their head and they continued through the subway, once more getting repeated looks over their body, until they reached their destination. Though Diesel could tell that the symbiote wanted to act on his impulse to create more hosts he was able to muster a lot of self-restraint, something that they had been practicing ever since they had been told that he was going to be the downfall of metahumanity everywhere by spreading like a virus. They knew that together they weren't going to be like that; they were going to help the world instead... once they got a better handle on their abilities. Still both couldn't deny that they felt the desire and arousal of imaging those that were around them as new hosts, even Diesel's psyche wanting to create more as they grew closer in their bonding process.

Eventually they reached their destination, a rather nice apartment building in the more affluent section of the city. When they got inside the lobby they could see that the Halloween spirit was here as well, seeing carved pumpkins and other such decorations in the area as he headed towards one of the elevators. There were definitely less people around here than there were in Diesel's neck of the woods, the gatox feeling slightly out of place as he looked around at the few staring at him. His symbiote faced no such qualms however and confidently moved their body into the open elevator car and pressed the button to go up.

Even though they had set a number of ground rules Diesel still felt a slight pang of worry that they would get out of control when they got to the party, though the other voice in his head quickly assured him that everything was going to be fine. This was going to be one of the first places that they were going to where he was going to be exposed. and even though he knew it was next to impossible he feared that someone would figure out their true nature. They reassured themselves however that nothing like that could happen and by the time they were let out on their floor they had regained their composure. Despite everything Hunter felt like a dog straining at the leash as they continued to walk towards the address that was on the card.

The two knocked on the door and only a few seconds passed before a tiger opened it, dressed in a traditional vampire outfit as he looked at them with a big grin. "Welcome to the party man!" he said, his grin growing into an impressed smile as he looked up and down their body. "Wow! That's quite the costume you have, I love all the markings that you got on there!"

Diesel found himself nodding his head as he watched the other guy's gaze look over his form, seeing all the lines that they had painted on their otherwise rubbery form. It appeared their research into a fictional character was well worth it as their host didn't even bat an eye before bringing them inside and showing them around. The rather spacious apartment appeared to have about two dozen or so people milling about, all of them in various states of Halloween apparel. Some had rather elaborate costumes while others put in the bare minimum as they walked around and greeted people. Though the gatox was slightly anxious he found that he had nothing to worry about as people merely complimented his costume, and though some eyes lingered longer than others it was clear that it was a motivation other than suspicion that drove them to such.

Once they had gotten themselves acclimated to the party scene they began to relax and enjoy themselves, talking to friends that Diesel had been somewhat ignoring while getting used to being the host of a symbiote. One in particular was a grey wolf named Marcus, the two of them going off into the corner with drinks to get away from the music as Diesel asked him about his costume. "Oh, I'm a werewolf," the lupine said with a sheepish grin as he gestured to his torn clothes. "I know it's not anything spectacular like your costume but this is all kind of short notice for me, where did you buy yours?"

"Well you could say that it's homemade," the two said with a chuckle.

"No way!" Marcus said in surprise, going up to him to examine it more closely. "I didn't know that you were so talented Diesel, like the paint job is a little off but the rubber bodysuit is amazing. I mean I can't tell there's any padding under there, it moves like your actual body..."

The wolf trailed off when he pressed his hand against the gel-like muscle under his rubber skin, realizing that he was essentially rubbing up against his friend in a rather public area. For Diesel he could tell that there were different ideas that had run through the lupine's mind, both he and the symbiote picking up on the sudden surge of arousal that seemed to shimmer through the wolf's body. It was almost as if they could see it, picking up on it like a sixth sense as the rest of the party seemed to bleed away from their perception. Just to be sure they made the bold move of reaching down and grabbing the lupine's groin, not only asserting their dominance over the situation but also to find that he was hard as rock down there.

...they wanted him.

It didn't take much to get Marcus to follow them from the party into one of the bedrooms, opting for the smaller guest bed area rather than the master one that might be the first choice of another amorous pair of party-goers. Before the two even took a single step onto the other side of the threshold their mouths were pressed together, tongues twining around one another as they pushed the other male towards the bed. "We... shouldn't be doing this," Diesel protested in their shared mind, though it was rather half-heartedly as they continued to push their thick tongue deep into the wolf's maw. "I thought we... weren't going to make another host..."

"This one is most eager," Hunter replied, the symbiote's voice echoing back in his mind as their body began to shift. "It's time you trusted me like I've trusted you... and if you sense fear in this one you can pull it back but if you don't than he's ours. Plus while we've done our research into this costume I saw something interesting that I really wanted to try..."

The mental image that came up in their mind was something that caused their cock, which was now free from the confines of the rubber they had encased it in so they could essentially walk around naked, to swell. They grabbed the wolf's hands and pushed him back onto the bed, but before Marcus could hit the sheets he found himself suddenly suspended in the air just above them. When the lupine realized he was no longer falling he looked over to see that there were tendrils of thick blue rubber that connected the two of them with his hands covered in the strange latex. At first Marcus thought he had somehow ripped the suit as he saw the exposed gatox paws, but he quickly figured out that wasn't the case as the rubber mask of the muscular male pushed off of Diesel's face to reveal to sets of smiling muzzles that caused his eyes to widen.

Marcus didn't have much time to react, only able to gasp before Hunter took full control of the hovering mask of rubber and engulfing the head of the lupine male. There was a muffled cry of shock as that thick latex tongue he had been sucking on only moments before quickly pushed into his maw and merged with his own, the mask inverting itself so that Hunter's mouth overlaid with the wolf's. It looked like he was wearing a rubber gatox mask as Diesel watched his symbiote manipulate the lupine's maw. A similar sensation began to happen to the rubber-covered hands of the other male as Hunter used them to rip the already torn shirt off of his body before working on the pants and getting them off as well, watching the wolf's erection flop out as he brought the captured creature forward.

There was a moment of double vision for Diesel as he looked through the eyes of the rubber gatox mask that had completely enveloped the lupine, seeing his otherwise normal head with solid blue latex eyes on top of a still very muscular body before he lost it. "Looks like someone is enjoying themselves," Hunter said through his muzzle, still under control of it despite his symbiotic latex on the other male as Marcus was drawn closer to him. "No sounds of protest, only pleasure, I think we have ourselves a winner. Still want to stop Diesel?"

Diesel found himself shaking his own head as the wolf's body pressed against his own, feeling the rubber lift off his legs and wrap around the lupine's as they were pulled around his waist. It was clear that the symbiote knew what he was doing as Marcus continued to squirm in his bindings, clearly in pleasure instead of fear or anxiety as his body was slowly being taken over by the rubber that was now wrapped around almost all of his appendages. The wolf's now shiny feet looked almost comically big on his otherwise skinny legs as they retained the muscular form of the rubber gatox while their groins rubbed together. The tentacles that connected the two quickly maneuvered the lupine until his tailhole was flush against the gatox's groin, their rock-hard erections pressed together as Diesel reached down and stroked them both at the same time.

As the symbiote used his hand to stroke them both off he watched as the textured latex of his groin melted over the cock of the other male. The wolf squirmed as Hunter immediately began to stimulate the sensitive flesh, not only with their hand but with the rubber that coated the throbbing tool that had had remolded itself to look like an exact replica of Diesel's symbiotic member. The synthetic material also dripped down between the lupine's legs and coated his hole before pushing in to assimilate his inner walls as well, which caused Marcus to let out a muffled yelp and shiver in bliss. This gave them the ability to move forward and give the lustful wolf exactly what he wanted, their thick tool sliding down before pressing its way between their legs.

As Diesel felt the head of his uncovered cock push its way into the suspended male he marveled at what the symbiote had done; the head, hands, feet, and groin of the wolf now looked like his rubber gatox form but hadn't transformed anything yet and still left his chest, forearms, thighs, and legs completely uncovered. It made Marcus look like he was right in the middle of a transformation, one that was far better than the silly werewolf one he had attempted to pull off before with his tattered clothing. "You know... I think I rather like him like this for now," Hunter's voice said, this time through Marcus' rubber gatox muzzle as Diesel could feel the wolf writhing from both being controlled and penetrated by another male. "What do you think pup, want to have a new costume for the party and still be my host later?"

Even though both Diesel and Marcus were deeply enthralled by the pleasure that the symbiote was bringing them they had the capacity to realize what was happening to them, the wolf nodding to the symbiote's request while the gatox got to see what his counterpart had done. Marcus suddenly had his back arch as his fingers and toes curled, the rubber infusing with the body of his new host as tendrils spread out over the forearms and shins. The symbiote had no intention of covering the entire wolf though as Diesel could feel Marcus's face contort from Hunter creating yet another being as his host. Even the areas that the latex hadn't covered began to swell with muscle as well, giving the lanky body of the wolf more defined muscle while the fur covering them pushed out slightly from the tendrils underneath.

Both males were so engrossed in their transformation that they didn't even realize that the gatox's cock had slid halfway inside the vulcanized tailhole, huffing loudly as Hunter continued to keep Marcus suspended in the rubber tentacles. For the symbiote it was hard to keep himself from completely covering the lupine, and even as the mental tendrils began to dig their way into the psyche of the other male to take him over he still began to see the rubber continue to attempt to spread. It took a great amount of fortitude to keep the transformation at bay as the pleasure that they experienced increased profoundly. While he was no stranger to not having sex without changing someone into a host it was something completely different to have his symbiotic fluid only assimilate part of the wolf's body... for now.

"What's... happening to me..." Marcus stammered as he felt his insides shift, his voice deeper from the latex that had pushed its way down his throat and neck on the inside and outside. "Our body... my body feels so strange..."

"You are becoming my host," Hunter replied, his latex tongue licking his lips as he watched the wolf squirm while the symbiote continued to infest his mind and body. "In exchange I'm giving you the most pleasure that I can give with this form like you are giving me. Normally I would just turn you into another gatox like myself, and I will eventually, but I wanted to try a few things first since I've been given a little leeway here. For instance, right now I can sense that your werewolf outfit was something more than just a last-minute costume idea..."

The lupine huffed and his rubberized hands clenched together as the symbiote that was inside him continued to spread through his entire body. Even though he was keeping most of the wolf's pelt intact that didn't mean that he wasn't going to make some changes and as he slammed his latex cock inside the other male the mask instantly sealed shut so that he once more couldn't make any noises. When they closed together it did allow for the alien tongue to stick out, the rubberized appendage writhing in the air in pure bliss as Hunter began to thrust in and out of the hole clenched around his cock. Even though he could have just directly influenced his pleasure centers there was nothing quite stimulation the old-fashioned way.

Though the stimulation and growth of the muscles slowed he had still gained quite a bit of mass from his conversion. As Diesel looked him over, he believed that there wasn't enough of a physical change for him to have anyone really notice. There was nothing that he could do about the rubberization of his head, hands, and feet, as well as his tail as the gatox shifted his gaze and saw the liquid latex drip down it. The muscle thickened as the blue rubber continued to cascade down until it turned into the same tail as the one that swished behind Diesel's body. A grimace formed on Diesel's lips as he struggled to slow the transformation until it stopped before it could creep further up his spine.

Marcus huffed as he felt his body changing, Diesel and Hunter pushing into the hilt as the symbiote left the gatox in order to continue to filter into the wolf's headspace. Even though Diesel was left behind he was bonded enough to see that he was making a few tweaks until the other creature spurred him on to continue thrusting. The gatox host huffed and found his hips driving themselves in deeper, attempting to get the sensitive flesh of his cock as far into the hole of the other male as possible. When he looked down between thrusts he already saw that the living rubber had reconstituted itself, once more giving him the same tool between his legs as the one that flopped between him and the wolf.

By the time the symbiote had finished his work both males were in the frenzy of rutting, Diesel's latex cock pounding in and out of the partially rubberized wolf. There was nothing but lust between the two now and at this point the alien creature was content to let them go at it while he let the latex reconstitute over the gatox's body. Even with the intense pleasure Diesel could feel that slick substance stretch over him once more, covering his features with the blue rubber while his tongue once more pushed its way out to the point where the two were wrapped around one another. Eventually Diesel's gasps and groans of pleasure had to be silenced with the tendrils wrapping around his muzzle, keeping it closed as well.

As the shiny material that had already encased his head began to seep into the wolf's mind Diesel could feel the familiar sensations of new thoughts and memories filtering in, Hunter rooting around to make sure that he would cement being a host was the greatest pleasure that anyone could ever offer. From the initial sensations it appeared that the symbiote was correct in his assertion that the wolf was a good choice, feeling almost a need for someone to control his life. But just as they were about to get through more of the lupine's memories Diesel suddenly felt a disconnect, the gap between the gatox and the symbiote flooded instead with pleasure that caused his dick to jump while still lodged inside the hole of the other male. That, combined with a sudden and intense need to get off, made him focus only on the muscular, partially rubbery male that had his legs wrapped around his waist as he practically bounced that tight hole up and down his shaft.

Even as Diesel felt himself getting close he felt the symbiote teasing him, causing his pleasure to quickly escalate while continuing to keep him from coming. There was nothing that he was able to do about it since the rubber creature had the capacity to control every aspect of his physical and mental state if it really wanted to and the gatox was too blissed out to resist him at that point. The wolf was likewise getting edged, though given the nature of what Hunter in store for him it was unlikely his tainted cum was going to go anywhere. Their bodies squeaked as they bumped and grinded together, growing more frantic with every passing second as the last of his fur was once more coated until he was once more the rubber gatox that the two of them had become.

The second that their body was reintegrated Hunter allowed Diesel to cum, the gatox orgasming hard as the symbiote siphoned off the lust of both males. When they were done it was clear from the whimpering of the lupine male that he hadn't been allowed to orgasm still. "We're going to need you to stay that way for a little while longer," they said as the wolf's muzzle finally split apart to allow him to pant. "Don't worry though pup, we're going to make sure you get exactly what you need."

"I... need..." Marcus said before his eyes suddenly glazed over for a second before he looked at them with the clarity that he had before they had started. "Whoa... about twenty seconds ago all I could think about was cumming, now it's like someone put a bucket of cold-water times a hundred. What did you do?"

"We just put a spike in your desire," they told the wolf, cupping the swollen latex balls of the lupine male which caused Marcus to groan. "What you have in here is a little too precious for you to waste, and we need you to get back into the party so that things don't look suspicious."

The wolf looked at the rubber gatox, then at his own latex-covered appendages and enhanced muscles. "You think this doesn't look suspicious already?" he stated as he gestured to himself, everything from his latex gatox head to the similarly covered appendages. "I'm not even going to fit into my pants at this rate... not that I don't mind the extra inches but I can't exactly go out there naked."

The wolf put on his tight-fitting tattered shirt as the gatox looked over the jeans that were obviously too small for the body of the enhanced male. He tossed them aside and thought about what to do as he stroked over his own groin while it retracted back into the bulge that allowed him to remain decent. As they looked back at the rubber cock and balls that they were supposed to cover it made him think of an idea, one that caused him to smirk...