The darkened sky, thick shadows, and chilly air were all reminders that fall was upon them and made it the perfect night for a Halloween party. With the setting sun, trick-or-treaters would be required to head home for the evening. And such was the time for the adults to come out, attending costume parties and other such functions. Though, perhaps none quite the same as the one these three friends were planning on attending…

Jon, Eric, and Rachel were on their way to a uniquely themed Halloween transformation potion party, the first of its kind within their friend circle. Since such was legal and starting to become much cheaper to acquire, one of their new friends, Lisa, had invited the trio along with a select group from her usual clientele. Not really knowing what to expect, the trio decided to attend anyway, hoping to have fun in whatever fashion the host had in mind. All they were told was that they would not be allowed to pick their forms beforehand, and would be required to become whatever forms their host had chosen. Even as shy as Jon and Eric were, there was something appealing about the notion of allowing someone else to pick their forms for the evening. Their semi-regular use of potion transformation technology had truly opened them up to trying all sorts of new things, indeed!

Thinking themselves to be on time, the trio was greeted by the sight of several other attendees in the backyard around the house, already obviously in the form of Halloween horror creatures. There were more banal creatures such as Werewolves, naturally, though they soon found themselves in the presence of giant spiders, nagas, aliens, and even a multi-headed hydra. Still being human for the moment, the three of them felt horribly out of place.

“I had no idea the potions could do this,” Jon mused, looking at the gathered monsters as each one in sequence paraded their forms, showing off to the late arrivals. It did not escape his notice that most were aroused, with groins either erect or glistening, and even in the cool evening air, he was able to detect the familiar scent of semen. That was to be expected for those who had changed with potion technology, one of Jon’s favorite reasons for partaking with his friends!

“I did,” Rachel mused, and judging by the look on her face, she had even considered becoming one of them. 

“Why am I not surprised?” Eric replied, though there was no denying the fear on his face as he contemplated becoming something as horrific as them. Lisa had their fate for the night in her hands, so to speak, the trio having no idea what they would be turned into. Whatever it was, it was highly unlikely they would be turning into regular animals like they were used to!

Heading up to the house, the three of them were guided inside by signage at the door and were a little stunned to head into the living room and see their hosts, Lisa and her husband Dylan in the midst of their own transformations. Both were already naked covered in patches of golden hair, with larger hands and fingers that were starting to stiffen. Yet, at this stage of the change, it didn’t seem obvious as to what they were turning into. Dylan, however, had a noticeably disappointed look on his face, as though he wasn’t too thrilled by whatever his new form would be. 

“Oh, hello! Sorry, we had to get started on our own changes. The potions for you three are over there, but there’s a special part to it that I need to explain once you’re done…we have to finish our own changes, but we can head into the back room and give you this space. Take your time, but not too much time or you’ll miss the party!” Lisa said, as the two of them headed through a door on the other side of the room. 

With that, the three friends got themselves ready, stripping down and clinking their potion glasses together before downing them in one go. As usual, the potions were relatively bland, containing a cocktail that would change their bodies into those of animals. Or, mythical creatures if their fellow party-goers were any indication. It was a little daunting not knowing what their changes would entail, but each had committed, and there was something exhilarating about the notion they would have to figure out what it was as they went. That, and somewhat arousing, something that would likely be shared with all the others changing, common side effects of the potions and no small part of the appeal. 

Bracing himself, Jon allowed himself to be aware of his body and the tingling sensations that signaled the beginnings of change. It was a little bizarre, though something he had become accustomed to from his past experience. That was in part why it was hardly jarring to experience an itching over his hands, hairs peppering the backs of them, looking just as golden and short as the ones covering Dylan’s own, or like ones he had seen on his own body once before. As though he was turning into a…

The brief ache of his fingers shortening was enough to confirm Jon’s suspicions. The base of his palms was gradually widening while absorbing the length of his fingers, rendering them much shorter though still somewhat flexible. Meanwhile, the nails on his hands started to peel back to make room for the sharp, crescent claws that marked him as a feline. Even as the skin on the bottom of his fingertips swelled and darkened, and took on a paw-shaped pattern on the underside of his palms, Jon knew what was happening to him. It was exactly the same change that had marked him as a lioness at the massage parlor where he had first met Lisa. Or, perhaps he was turning into a male lion, though it was highly unlikely it was simply that, given the state of the other partiers. 

His male lion suspicions were confirmed by itching in his hair from the follicles extending and altering in consistency. Soon, it was starting to irritate his scalp, too long and unruly around his shoulders and the top of his head. “Are you a metalhead deep down?” Rachel teased, though she was soon rubbing the top of her head, showing the start of lumps there, which had to be horns. It seemed she wasn’t sure what they were for a moment, feeling them getting thicker and parting the hair before they sat comfortably atop her head. 

Though there were a few different species she could be becoming, it was an irritation in her eyes that seemed to indicate her eventual fate. The pupils soon turned black, flipping on their sides and turning into perfect rectangles. With the yellow irises, the sight of them seemed to bring a particular image to mind, matching the horns and revealing her fate. 

“Ba ba ba motherfuckers,” Rachel said after looking in the mirror, eliciting a laugh from the other two. It seemed she was happy with her ovine form, likely excited that her horns marked her as a male. That was always her preferred sex for changing, something that Jon couldn’t blame her for, with his interest in being female more often than not. 

Eric, for his part, was rubbing at his chest, the errant hairs falling away to reveal greenish-brown scales underneath. Soon, they spread over his chest and belly, a little thicker than expected, like the start of reptilian scutes. They were clearly spreading over his sides as well, leaving his legs and arms suspiciously bare. The notion left Jon wondering if he was to turn into a snake of some sort, though the change didn’t seem to bother Eric. In fact, he was rubbing the scaly skin with some reverence, evidently loving the texture of it over his skin and encouraging it to form. 

Jon’s suspicions were confirmed with an apparent weakness within Eric’s arms and legs, making him shudder a little and put his hands to his sides. Eric got down on his ass before the weakness overtook him and he accidentally toppled over. Jon wondered if his friend was maybe turning into a naga like some of the other attendees, though it seemed his arms were going the same way. So then, what was the end game?

Jon didn’t have much time to reflect on it with an ache in his teeth, and although he couldn’t reach up to touch them with his hands as paws, Jon was sure he was getting feline fangs. It felt exhilarating to be turning into a lion again, a male one, and Jon was somewhat thankful for the familiar form. This time being a male, Jon found himself wondering what it would be to fuck from that perspective. That notion was a little daunting with a group of strangers, as comfortable as he had become doing so with his friends. Still, he was able to get into the mood, allowing his jaw to press forward slightly as his dentation altered toward their feline equivalents. He wanted to be a male lion, wanted to roar again, and the fact a lion’s libido was so high didn’t hurt matters, either!

Rachel, meanwhile, was starting to grow more hair around her face, becoming a sort of white beard before spreading around her head and down her neck. It extended into a goatee of sorts, giving her a bizarre, wisened look. Her jaw seemed to crack slightly, thinning and angular into a semblance of a muzzle. But it was the sight of her breasts beginning to deflate, with no sign of udders, that gave credence to the fact that Rachel was getting her usual wish. She preferred to play the part of a male, and as she started scratching the white, growing pubic hair around her sex, it seemed to be the case.

With that, the sight of her slit starting to close and the swelling of her clitrus cemented her form’s new gender. It was soon quite swollen, a fuzzy sheath forming as the tip turned red and pointed, a pencil-thin penis that was soon long enough to reach toward her belly button. Knowing Rachel as he did, Jon was surprised she didn’t start jerking off right then and there. She was ecstatic though, her goat eyes widening and evidently elated at the fact she was altering sex. 

The sight brought Jon’s penis to bear as well, though it was not just the notion of his friend’s arousal that was doing it for him. His own member was starting to tingle with change, moving to his full arousal as his foreskin started to peel toward the base. The bunched-up skin seemed to stick to his groin, pulling his cock backward before his erection forced it out at another angle. Tawny white fur started to itch over the surface, though Jon resisted the urge to scratch, not wanting to cum too soon. Even the fact his cock was starting to shrink was of little consequence with the high level of arousal he felt, aware that lions had smaller cocks but knowing first-hand how well they hit home in the right cunt.

The sight of his member wasn’t lost on Rachel, commenting while she still possessed the ability. “I wouldn’t mind trying some male-on-male sex, depending on how things go,” she offered, with an eagerness that made Jon certain it was something she had thought about more than once. Jon could only blush at that, not sure what to think at first, but not denying the idea turned him on. 

The change to his maleness was not to stop there, testicles swelling even as they pulled toward his lion ass. The same fuzzy hairs covered them, and Jon had to admit it was a little uncomfortable having them between his human legs. His penis was getting ever smaller, turning pink and pointed at the tip. The tingling of minute spines peppering the surface was a little jarring, though something he was familiar with from taking it from the opposite end. It had become a lion cock, through and through, and despite its lack of size, he was sure it could be used to great effect.

A quick glance made them both aware that Eric’s cock was altering as well, just as erect as the two of them. His testicles seemed to be fading into his form, throbbing as they were subsumed by the scaly skin. Jon simply assumed they were moving within him, to be readjusted since his cock was hardly deterred from its erection. If anything, he was harder than ever before, thickening as though it was prepared to alter toward a more serpentine form. 

Jon was starting to think that, even if they were all male, he’d still be down to have some fun with his friends, knowing they likely felt the same way. Still, there was something a little peculiar about staying male for once, loving animalistic sex from a female perspective. It would be weird taking cock in his other orifice, but something he was down to try, the lion being fucked by the goat that Rachel was. And he was sure she’d be down if only he presented his lion rump! Jon soon realized how much he would need them, his hands turned into paws, and unable to get off until the changes allowed him the flexibility to do so. He figured it would be much better to do so with his friends, after all. 

The changes continued, Jon next feeling his ears stretch and round, filling in with hairs and giving him that vaunted animalistic hearing he missed in his human life. Though the most present thing in his ears was the sound of their two hosts in the back, getting up to some fun as their own changes came to fruition. For now, it was time to enjoy the arousal the changes brought with them, to feel his nose being pushed inward, flattened on his face, and almost too large for still human features. As slits moved up their sides and took up much of the space between upper lips and nostrils, Jon found he was able to enjoy their combined musk all the better, all three of them leaking in tandem from their changes. It was all they could do to resist for now, wanting to wait for the time when they could properly explore their forms with each other.

Rachel’s own snout was starting to develop now, and with it, her blackening nostrils merged with the skin of her upper lip. It was black, almost button-like, and made her excited to flare it “This is RRRAAAAAAAAD!” Rachel tried to say, though it was hard for her to keep the goat-like inflections out of her voice as she did so. A series of cracks sounded from her jaw as it continued to push outward, and she grinned, her teeth starting to yellow and turn blocky in her mouth. Her tongue thickened and rounded as well, and she spit a little as the muscles in her cheeks continued to expand and forced her new muzzle further out. It was likely she couldn’t speak anymore, though hardly something the trio were bothered by, given their penchant for animal transformation. 

Eric, meanwhile, looked as though his legs were getting weaker, the muscles waning within. His arms, too, seemed to be going the same way, shorter than before as his fingers started to stiffen, shrinking, looking like an infant’s before being withered to pointed stubs. Soon palms, hands, and even arms were retracted into his torso, shoulders pushing within and leaving him with a more or less tubular form. Eric’s cock was visibly leaking as his legs, too, started to pull within his torso, making it impossible for him to get back up on them. The changes were not to stop there as his mouth began to stretch, jaws unhinging and allowing his mouth to open impossibly large. Scales were spreading up his neck, playing over his scalp in the wake of his hair falling away. Soon, his head was entirely covered, looking perplexing on a still human skull, though that was soon to change, given the speed of his changes in conjunction with Jon’s own. 

As with his friends, Jon could feel the bones in the cheeks and mouth push forward forming the basis of his leoline snout. Its new size allowed his canines to properly grow, yellowing slightly as his dentition was replaced with the shearing edges of feline fangs. His tongue, too, was peppered with the now familiar sensation of keratin spines over its much wider surface, and he opened his muzzle wide, yawning and roaring a little as his throat adjusted its vocal cords. He loved having his muzzle back, not having one since the last time he had been a lion, and now a slightly larger one to boot!

By now, Jon’s arms were bulging with muscle, his chest expanding and shoulders compressing forward, suited for a more quadrupedal form. Though he couldn’t flex them in the way he preferred, it was still powerfully exciting to feel them swell regardless, something he could use to grip wild prey like the powerful beast he was. And with the stretching of his spine and expansion of his upper body, he was soon to be the powerful alpha lion it now aroused him to be. 

Rachel, all the while, was feeling her skull slope, face pushing out into an ovine visage as her ears stretched into points and were reorientated to the top of her head. Her hair had adjusted to match her beard and sideburns, now running down the expanse of her neck and back. She called out with her goat’s bleat, loving the form and not at all being intimidated by being in the presence of a lion. It suited her better to be male herself, satisfied with the slapping goat penis against her loins, for now, at least.

Skipping over her hands, the change instead began to move into her legs, seeing them thinning out and making her adjust her stance a few times. Widening hips made it a little difficult for her to remain standing. It was furthered troubled by the formation of her back hooves, thick black keratin forming from two swelling digits while two of them moved behind her ankles, and the large toes were entirely subsumed. With thinning, stretching heels and compressing calves and thighs, Rachel leaned over, ass in the air and waiting for her chest to change so that she might stand comfortably on all fours. 

Eric, seemingly changing faster than the other two, started to grow his tail, spine cracking and popping as it gained further points of articulation and even more flexibility. It soon stretched even longer than his body, thickening from the base to the point it was hard to see where his torso ended and his tail began. The flexibility of his spine came with a series of sharp pops to Jon’s lion ears and seemed to suck up the barely present thighs and stubs of his feet. All the fat, his belly button, and nipples faded from his form, allowing him the uniform, tubular shape of the serpentine form he was to take on.

With his thinning torso, lengthening tail, and thickening neck, Eric was nearing his likely final, serpentine form. Scales entirely covered his body now as he took on the shape of some form of moderately sized snake, fangs pushing out of his upper mouth likely deadly with a bite. His skull seemed to stretch and thin, allowing his mouth to open even further. Eric eagerly did so, showing off as his tongue started to thin, the tip splitting down the center and forming a fork that could evidently taste the air as was part of his new species’s heritage. His eyes, too, started to blink with the formation of extra lids, sliding back as his eyes enlarged in their sockets, slitted dead reptilian eyes. 

All the while, his penis remained human, the one thing left to alter. Yet, it soon began to quiver, swelling to close to double its girth. It was soon vibrating so frantically Jon was sure he was going to cum at any moment. Rather than bring him to orgasm, however, a crease formed from the tip, peeling from the head, and forcing Eric’s eyes to roll back in their sockets. His tongue was lolling out of his mouth in a way that might be alarming if they did not know the cause. Still, it was hard to avert their eyes away from the sight of his cock splitting downward, oozing their burden as they did so. The sight was only to get more bizarre as the man’s asshole, something that still sat behind the scales of his underbelly started to move, parting the scales slightly out of the way. Only two links away at present, it soon encroached on the skin around his cock, pulling it open and merging the two together. His member was still hanging there, enveloped by the slit as it continued to split down toward the base, undulating as it did so. Eric seemed to struggle with the semi-orgasmic sensations, rolling around as his hemi penis fully formed and his transformation completed, while the other’s changes seemed to have stagnated. 

With that, the sound of their two benefactors returning came to their awareness, and the three looked up to see what they had become. It was now obvious now that Lisa had partially changed into a giant eagle, unable to talk either through her massive beak. Rather than her arms having anatomically shifted into wings, however, it seemed her former hands were now curved toward sharp talons, four in all and covered with yellow-orange scales all the way up to her former elbows. The wings themselves were massive, sticking from the back of her shoulders and likely giving her the ability to fly once the changes were done. Brown feathers covered every inch of her head, upper arms, and chest, though stopped at her midriff, leaving the skin there bare and human.

Dylan, meanwhile, was in the opposite predicament, transformed from the waist down into what appeared to be a lioness. A long, tufted tail swayed being him, playing over a wet, moist cunt and feline nipples, something that Jon couldn’t help but hone in on. His legs, too, were fully changed, massive feline paws set on short calves and flattened thighs. His hips seemed to have altered as well, leaving him on all fours and awkward in his hybrid state. Like Lisa’s own, however, the transformation seemed to have halted, leaving him in mid change until whatever they had in mind came to fruition.

“Welp, now it’s time for the fun part, depending on your viewpoint,” Dylan said with Lisa nodding her agreement. “It’s a two-part potion. They really did come up with some unique applications for the potions, though these don’t get used very often. But Lisa wanted to give these a try at the party, and you three are some of her favorites,” with Lisa nodding more enthusiastically.

“Here, let’s show you,” Dylan said, taking a pair of potions from behind and giving one to Lisa. He, too, drank his, and the immediate effect was for the scent of his heat to burn into Jon’s mind to the point he could barely resist fucking him. But it seemed they had something else in mind, and Lisa moved around, revealing an impressively sized penis, though human in shape. In no time at all, she had it inserted in Dylan’s lioness cunt, making the man shiver. 

“Your extra potions are in the drawer back there,” Dylan managed to moan, though barely able to from the size of the penis in his lioness cunt. “There’s a note in there…fuck…too…god it feels good having a cunt…fuck this is going to be weird though…you don’t have to do this next part but it would be really…fuck…cool if you did…for the party…god it’s starting…”

The sight of two in the midst of fucking was hardly an unusual sight for the other three in the room. But as Dylan was railed, feeling the full force of human cock in his feminine sex, it seemed from a certain angle that the fur having risen from Dylan’s skin lined up rather well with the line of feathers that had sprouted from Lisa’s own. A fact that was made more apparent as their bellies seemed to be drawn closer, almost touching. And soon to be closer than that…

To the surprise and shock of the three half-formed animals watching, the skin of Dylan’s form started to stick to the bottom of Lisa’s chest, knitting together and spreading up Dylan’s back and Lisa’s chest. The suture extended all the way up to their necks, knitting the skin together and making them functionally as one. It seemed to end at the top of their necks, as though Dylan managed to avoid sticking his head to hers. Given the sight of their bodies, and the possibility of them merging further, that appeared not be the case for long. 

Such looked rather painful, and the three onlookers were concerned about undergoing something similar, as was likely the intent for the night. Yet, even as Dylan struggled to prevent his head from entering his lover’s neck, his eyes seemed to roll over in his head, loving the pleasure that seemed to be stemming from the merger. “Fuck…it’s so good…better than I thought!” He managed to call out, and a corresponding cry from Lisa was all the trio needed to know that their hosts were enjoying their changes. And it made sense, given the pleasurable effects of potion transformations. It was no wonder that even such a bizarre transformation was enough for them to get off! 

As the two of them merged up to the back of Dylan’s head and down toward his ass, it was obvious they were growing beyond the normal contours of their animal forms. His lion backside was getting larger, leonine legs pressing against Lisa’s human ones from the sides. It seemed as though their legs were starting to stitch together as well, moving inward at the sides and slowly all the way down to their feet. By the end, it seemed obvious that their legs and feet could not separate as when one moved, the other moved along with them.

By this point, Lisa was no longer thrusting into her husband, as though her cock and backside had merged with his own and there was nothing to thrust into. More than that, it seemed as though his groin was being pulled upward, as though being subsumed by the eagle woman’s body. No, that wasn’t quite right. It was more akin to the woman’s still human lower half sinking to be within the lion’s backside, the human elements being taken away to leave the hybrid being the two of them were becoming.

With the steady absorption of Lisa’s former legs into Dylan’s lion ones, it was obvious that Dylan’s lioness assets were bulking up, far larger than any lions in the wild. Clearly, they were becoming something more bestial than the sum of their parts. As more of Dylan’s chest sank into Lisa’s, and Lisa’s legs were subsumed by Dylan’s, their eventual shape was starting to make sense. It seemed something of a mythical variety, like a griffin. Though why they needed to merge to achieve their form was anyone’s guess, it was evident both were enjoying the pleasures of the change, perhaps more so than any transformation they were used to.

As more and more of Dylan’s chest was sucked inside Lisa’s, Jon had to wonder what was becoming of his internal organs, if those, too, were shifting. It was likely that Lisa’s chest had altered, lungs, heart, and digestive systems fit for the new being they were becoming. With that in mind, her organs were plausibly absorbing his own, taking the mass and using it to fuel their expansion. More and more of his torso was subsumed, the skin peeling away before likely dissolving and reconfiguring within for the merger. Such should have been painful, perhaps fatal, though like all the potion-induced changes, it seemed to be more pleasurable than anything. 

Much like Lisa’s legs being absorbed by Dylan’s lion legs, Dylan’s hands were to become a part of Lisa’s claws. His fingers stiffened, twitching slightly as though trying to resist the merger. But there was little he could do against the potion’s influence as his fingers pressed forcefully against the eagle’s talons, which were just as stiff as they started to swell slightly from the infusion of new flesh. Within moments, with nothing left of his arms, and his chest stretched to the breaking point, only his head remained human and separate from Lisa. Yet, his face seemed rather ecstatic by the merger, as though eager for it to see its conclusion. Soon, Lisa could move the talons again, larger than before and befitting the magnificent beast they were becoming. 

It was obvious that Dylan’s head was going the same way, something that he seemed a little concerned about from his expression. “See you…” He managed to moan, though with his neck being taken within Lisa’s feathers, it was likely he wouldn’t have the ability to work his vocal cords much longer. The back of his head was pulled up against Lisa’s neck and chin, the skin opening up and taking him within, hair falling out in its wake. His skull was tugged all the way up to the bottom of her beak, and he seemed to reflexively struggle a little, trying to move it one last time. It was of little matter, as more of his skull was absorbed, the bottom of his own chin erupted with the same brown feathers, causing Lisa’s eagle head to expand with the infusion of matter. 

The more Jon thought about the situation, the more unnerved he felt over the whole affair. The sight of Dylan’s forehead being absorbed wasn’t too disturbing on its own. However, it was likely his mind, his brain, and all he was as a person was being subsumed by the eagle that Lisa had become. It was almost impossible to fathom as Dylan’s eyes seemed to close against his will, the eyelids melding together before they were taken in by the rolling wave of feathers. Lisa’s face was growing all the while, as much expanding over her lover’s head as it was being pulled inside of her. His nose, which had stopped taking air from the integration of Dylan’s lungs into Lisa’s, was taken next, and his mouth seemed frozen as well, without the muscles or mind to move it. 

With that, the last remnants of Dylan’s form were gone, making it impossible to tell they had been separate entities. The pair had fully merged into what appeared to be a griffin, and soon they started playing with the ability to move, finding it somewhat of a challenge, as though both former humans had some control. The form was rather magnificent, even as they struggled with moving their new body, a sign that both minds were not sure how to utilize their merged facilities. 

Though the two of them were of one body, it was obvious they had kept the gender of Dylan’s former lioness sex. The surface of Dylan’s former lioness cunt opened just below their merged anus, leaking and wafting a heady scent through the air that made Jon’s cock leak and his mind melt like butter. He would have taken them right then and there, but there was little point without his own changes being complete. And it seemed like a similar fate was in store for the three of them if they took the new potions and merged into a single being. And yet…

Though the trio wanted a few moments to think over their evening, the end result was obvious. It was a little awkward with Jon’s and Rachel’s changes being halted for the moment, as much as the tingling ceasing over their bodies could tell them. It seemed as though they were stuck like this unless they took their second potions, at least for the rest of the evening until they wore off. And, even Jon had to admit it was a little awkward to stay like when it was expected they would all merge together. And, surely, it was safe if their masseuse and her partner were doing the same, right?

Being the only one who still had hands to use, Rachel moved behind the counter, pulling out the three vials and setting them in front of the others. Then. she placed a sheet of paper where the three of them could still see, with a drawing of a three-headed monster of sorts, possessing the heads of a lion, a goat, and a snake as the tail. The name of such a being escaped Jon, though it was a little exciting to think that he might become part of such a thing. And getting to keep his head in the process added to the appeal!

Reading the instructions, it seemed as though the change into the chimera monster would be triggered with Rachel as the goat fucking Jon’s pucker. Usually being the bottom in such endeavors, Jon was amicable to the idea. Then, to complete the merger, Eric as a fully formed snake would have to fuck Rachel’s goat rectum with his twin hemipenis so that his tail would merge into their body and make up the rest of the beast. From the diagram, it seemed that all of them would keep their heads, and their minds separate, though each would be merged in a sense, being able to perceive each other’s thoughts. And, of course, the change was totally reversible with no ill effects once the night was over, leaving no repercussions to their fun.  

In the end, there was no good reason to hesitate, especially given the griffiness’s pleased demeanor in their new form. In fact, they seemed to be looking toward the three with some anticipation, wanting to witness a fusion from an outsider’s perspective. Looking at each other with a nod of agreement, Rachel bleated, and then took two of the vials, pouring them down the throats of the two men without hands. Then, in a motion of cheers, she downed her own, the three of them feeling the tingle that signaled their bodies were ready. Nothing happened after the first few moments, not yet at least. But the three of them knew what they had to do to allow the changes to begin in earnest. 

The first thing Jon noticed was that his cock, already erect from the scent of lioness heat, had pounded to a state of arousal more intense than he was expecting. He needed to fuck, or more accurately, needed to be fucked, a foreign ache in his asshole that wildly desired penetration. With that, he bent over, exposing his anus, and Jon felt his balls swelling with the need to be expelled from rectal stimulation. Never before had he bottomed as a male, but with the notion firmly in his mind, Jon couldn’t imagine craving anything more. 

It seemed that Rachel was of one mind, sniffing and licking at Jon’s still human ass, making the man shiver. There was something more erotic about taking it as a human, a little taboo, though hardly given it was to be with his friend. Rachel was generous with her goat tongue, licking him and covering his backside with enough saliva that she was sure to get in on the first try, as much as he figured it would be difficult to take such a cock with him. Still, he was ready, wishing he had the hands to pull back his ass cheeks for her inspection. 

The penetration wasn’t too difficult, all things considered. Rachel’s cock was not too thick to manage. It was on the longer side, however, and soon it was pushed in too far, even with as much as Jon was relaxed and ready to take her in. Still, the stimulation against his prostate was sublime to the point he was almost unprepared for it, growling in his leonine baritone as he was fucked. It was ironic, the prey taking the predator in such a way, a fact that was not lost to Rachel as she started to thrust, making Jon brace himself before he was jostled too much. 

Yet, the more he was fucked, the more warmth started playing over his insides, as though Rachel’s penis was flowing into him like lava. It wasn’t uncomfortable, though it was a little bizarre, to say the least, as her thrusts began pulling him back with her. Stanger still was the sensation of the skin of their backside and groins sticking together, knitting together and merging them functionally as one. The merger was not to end there as Rachel’s hips were pulled downward, touching Jon’s own as the skin underneath started to prickle with the growth of what had to be goat fur. His own legs were being pulled into Rachel’s thin goat ones, even though such should have been impossible, given the disparity in their sizes. But they were rapidly thickening with the infusion of Jon’s skin, swelling up with fat and muscle. They maintained a goat’s anatomy, if not the proportions that matched Rachel’s form in its current state. 

Feeling more of his legs now being pulled back into Rachel’s back, Jon felt a momentary concern for the loss of his feet, seeing how Lisa’s own stiffened in their death throes. But in the end, it was more akin to having his foot merged into a paw or a hoof, something that wasn’t too far removed from his previous experience. So he allowed it to happen, trying not to think about the urge to move and twitch them one last time as the heel of his foot touched Rachel’s cloven hoof. It was steadily drawn in as the muscles to move his toes were robbed from him. Soon, little remained of his feet, and Rachel’s back legs were almost a size to match Jon’s lion front half. 

All the while, Rachel’s back was being pulled upward along his own, inching steadily forward. Soon, it took Rachel’s body almost painfully far for her position on his backside, even as her flesh was steadily merging into his own. He wasn’t sure where exactly she would end up, only that it would simply be her neck left by the time it was done. For now, Jon could feel his own skin starting to prickle with what he had to assume was goat fur. To his surprise, some lion fur started to sprout over his lower half as well, thinking that his backend was supposed to be all goat. It was running down toward Rachels’s leg as well, and to their combined surprise, some of the longish goat hairs along the inside of her leg started to convert into shorter tawny lion hairs. Either way, very little human skin was left as they continued to change.

That was hardly the most bizarre thing to happen to their combined legs as the expanding cloven hooves started to grow, rounded at the tips and turning somewhat fleshy. The edges seemed to separate slightly from their cloven configuration, their contours rounded and enlarging to match what Jon was able to perceive as similar to his front paws. It was a little jarring, especially since they still seemed to be made of keratin and did not possess the claws of his leonine heritage. The legs themselves were still goat-like in shape, though the thicker goat hairs playing over them were accented by Jon’s tawny coat.

Though neither of them could speak, both were prompted to bellow their lust as more of Rachel’s body was taken into Jon’s backside. It was bizarre how good the changes felt, almost natural that they be merged in such a way. As Rachel’s goatish backside pulled further into Jon’s hips, he was hit with a variety of strange sensations, ones he was not expecting but made sense from an anatomical standpoint. His anus, for one, soon connected to Rachel’s own, his having been subsumed by her body. His penis, too, was starting to change, as though Rachel’s was moving within him, pushing at his insides and making his own swell outward. With no way to touch himself, Jon was left to growl his lust as his cock grew impossibly large, much more so than his lion anatomy as more of Rachel’s goat cock was pushed within his bowels. The effect had his own lion cock growing far beyond anything a lion could manage, leaving Jon elated to use it!

It was more than his anus and cock to alter, his internal organs were shoved aside, something that should have killed him over and over. Somehow, Jon was still breathing, though Rachel was no longer doing so. In fact, her heartbeat seemed to shut down altogether, her guts gurgling before they ceased their function as well. Their merged anatomy seemed to have designated Jon as the primary host, his organs being adjusted as more of Rachel’s body merged with his own. Down to the cellular level, it seemed, causing them to increase their size and sit better within their growing anatomies. Best of all, the effect seemed to keep Jon’s larger cock erect and ready to go the entire time!

At this point, Rachel was almost fully merged with Jon’s back. Jon felt the weight of her legs as much as they were his own. For now, her arms were free of her body, but as more of her chest pushed in, rearranging her organs for Jon’s purpose, it became impossible for her to keep them away from his lion body. The moment they connected, her arms seemed to sink within wherever they touched against the skin. Though her fingers were in their death throes, Rachel was still prompted to try and flex them one more time. Soon, she lost their remaining autonomy and was forced to feel them sinking inside Jon’s body, swelling the muscles in his arms and making his lion side even larger. Tissue expanded against the skin of his muzzle, his arms, and his chest, almost doubling the size of his body to the point he thought it would break. But he managed to wade through it, feeling more powerful, more virile than at any time from any past changes. It was exhilarating, to say the least! 

While it was always disconcerting being in the midst of change, this merger had a particularly peculiar effect neither was prepared for. With their bodies in flux, it seemed as though neither could move a muscle, neither really possessing the control they figured they should. But as Rachel’s cells moved to merge with Jon’s own, he was once more granted the ability to move parts of himself, just a little. Pushing at his front legs, trying to extend his claws, it was like swimming up a waterfall, though something he was able to achieve with some effort. Stranger still was the sensation of his body moving against his will, as though another mind was attempting to move it. That was most definitely the case, though the fact they were in conflict made moving their body impossible. It was some effort for Jon to hold himself back, not wanting to impede Rachel’s ability to explore their form but finding the sensations alarming besides. If only they could read each other’s minds and work in tandem!

Lost in the sensual changes and the physical conflict, Jon was hardly prepared for the sensation of something teasing the contours of Rachel’s, now their anus. It was thin, not salivating as much as Rachel’s goat tongue but pleasant all the same. It soon seemed Eric the snake had something else in mind, pulling back and working the tip of his tail towards their pucker instead. It took some effort on both their ends, Jon and Rachel pushing out with their rectual muscles to try to take him in. While it was troublesome, they managed to the point Eric’s tail was almost too far within them, able to feel his hemi penis start to rub against their insides. 

It took a few thrusts to get into the motions, but once Eric figured out his rhythm, he was effectively left tail fucking their hybrid being, rubbing his cocks against their sensitive anus and shoving his tail into their fuck hole, even pressing against their prostate. The pleasure soon rose to the point they were sure they could orgasm with little effort. Yet, much like when Rachel fucked Jon’s ass, the tip of his tail began to stick to their insides, hollowing out as it was sucked into their rectal walls. Soon, every inch of his tail was absorbed by their backside, building the muscle of their haunches and making Eric part of their body now. All the way up to his penis, which was forced into the chimera’s anus, making him hiss in ecstasy as his body entered a sort of orgasm. No fluids were released, but the sensation was undeniable, leaving all three of them wracked by pleasurable waves, eyes flickering and minds whiting out for a few moments.

Even as the three of them felt Eric’s release in tandem, the sensation of their spine moved through him, pulling him up through their body and effectively merging the two together. Flexing their spine was akin to extending Eric’s entire form, and as the connections burrowed through his scales and into his muscles, each found they had some control over Eric’s base. Their will did not extend all the way through his form or to his head, as much as they were willing to try without frightening their third friend too much. Eric, too, was experimenting with his range of control, his upper body supported enough that it was not a strain to lift himself and curl along their back, hissing his ecstasy. It was almost enough for him not to notice the scales near the base of his back growing their own coat of goat hair, itching and trailing down his body to match parts of Rachel’s goatish backside. 

As their merged bodies finally settled into their new forms, something seemed to resonate through them, like the ticklings of another’s presence in each of their minds. It was a little alarming, not able to read each other’s thoughts per se, but being aware of their link, and to the feelings of the other. Each could sense the other’s pleasure from their sexual acts, the enjoyment of their fused body, and the waves of lust ebbing from Jon’s lion dick, something that was chomping at the bit to be used. And, with the scent of griffiness heat in the air, something even Jon had forgotten about in his lust for their own merger, such was to be a foregone conclusion. 

Of course, their shared mental link soon presented another problem, one they were not able to immediately solve. Now that the changes had settled, Jon found himself to be in full control of his arms, his head, his cock, and…nothing else. He could feel Rachel’s legs behind him, and the weight of her upper body and neck on his back. But he had no control over those body parts, an alarming facet of the merger. Judging by the impulses from the other two, it seemed they were struggling with their own lack of control over body parts that were not initially their own. It was particularly jarring for Eric, who was essentially a passenger on the larger creature that was once Jon and Rachel separately. 

Trying to coordinate their limbs in a meaningful way took some practice, Jon moving forward and almost falling down as Rachel missed the signal to move. Without being able to verbally communicate, such was almost impossible, though if he focused enough on the tinglings within Rachel’s mind, he was able to predict when she would react. He was a little too slow at first, her back legs moving against his own and making them stumble once more, a rather hilarious sight if the griffiness hadn’t also in the same straits about learning their new body. Still, determined as they were, both halves managed to right themselves, preparing to try again. Something akin to amusement seemed to resonate from Eric’s snake mind, but there was another facet, one of being unsettled, that really shone through. He had so little autonomy, after all, unable to really do much with his body beyond the connection of his tail.

Sensing Rachel’s resolve, Jon waited for her mind to make a move, and he did so at the same time, moving their body forward, albeit awkwardly. It would take some practice for them to move in tandem, as reflexively as a single organism controlling its own body. It was something akin to being in a several-person costume, only able to feel and react to the other person’s mental prompting. It became easier in the end, Jon relaxing his thoughts to allow his intentions to be picked up by Rachel before the duo moved one step forward, then two, feeling confident enough to try a walking gait. Such ended with them hitting a wall and toppling over, though a sense of amusement was felt over any embarrassment. They had made progress, and with another twenty minutes or so, they figured they would have it down. 

Still, that pungent ever-present scent in the air began to speak volumes to Jon’s lion nose. The others felt it too, the stirring in their loins awoken to the scent of a female in heat. In truth, Jon would have been game to fuck any such willing being that could handle them. But with the fact their leonine parts lined up, it was a wonder they hadn’t thought to stop all other activities and fuck each other yet! Slowly, Jon and Rachel made their way to the presenting backside, lioness tail raised and cunt lips on full display. The sopping wet heat turned on their chimera body like nothing had a right to, their cock painfully erect and needing stimulation. While it seemed like the merged griffiness body had at least the control to stiffen their stance, Rachel and Jon had some difficulty with mounting, almost falling over in their initial attempt. With the lioness heat burning into their nose, it was almost maddening to try and center themselves to react to the mental signals of the other. 

It took several attempts, but the trio managed it eventually, Jon pulling them up and gripping the griffiness below the wings, finding their hide to be more than capable of managing his claws. It was Rachel who had to work a little to position herself, hips not as flexible as she would like to present in a feline mating stance. She was able to manage after several attempts, leaving their fluids leaking all over the griffiness’s cunt in a maddening sort of tease. But the moment the beast’s cunt lips were penetrated, they seemed to wrap around the chimera’s rod and suck it inside, like a beast desperate for heat. It was powerfully erotic, and yet would barely hold a candle for the fun that was to come!

The chimera was all instinct as they thrust forward, spearing the griffiness over and over in what seemed to be their sweat spots if the cries from the eagle’s beak were any indication. It was hard to say, though both Jon and Rachel had a feel for lioness anatomy, and they were able to work in tandem to plow the literal pussy that was being presented to them. They were all instinct as they fucked, their lion balls sending a satisfying smack into the air as they rutted. A little slower-paced than a regular cat’s, it was still amazing to the point they felt they could hardly hold back. And like all animalistic sex, why was there any need to, beasts unloading their burdens as they were?

A fleeting part of them had to wonder how much of Dylan was in there, as he had no separate head, unlike the three of them. Surely, he was just as present and merged in mind as the three of them had been in body. It made the most sense, otherwise, his physical form would be simply a vessel for Lisa’s pleasure, hardly like the change they themselves had undergone. Still, such thoughts were fleeting in the heat of the moment, and the resonating waves of pleasure they felt from each other. It was bizarre experiencing the same emotions coming from three different sources, almost to the point of being overwhelming. And there was no denying how much it was doing for them, almost impossible to keep their individual awareness of the act. 

They were soon to become even more integrated as their orgasm came, with no warning as the release built past the tipping point. The pleasure seemed to emanate from three sources at once, the base of Eric’s snake tail, the insides of Rachel’s ass, and, of course, Jon’s lion penis. Jon roared out in tandem with Lisa as he came, balls throbbing and cock spasming more semen than any lion could manage. It was such that a backflow spilled from the lioness’s cunt, washing over their cock and making them shake a little from the sheer force of it. It was almost impossible for them to fully fathom the sensations, a more fulfilling experience than anything the three of them had known even from the frequent uses of the masseuse parlor and sexually enhanced animal forms. Three times as pleasurable, if the metaphor was apt!

Eventually, the chimeras finished their coupling, bodies awash in hormones from the afterglow of amazing sex. It was bestial, primal, and far more involved than any sex they had known, in human form or otherwise. Such was how it was programmed to be, certainly, but the three of them were barely able to comprehend what they had partaken in. In the moment of post-orgasmic lust, it was hard to determine where one of their minds began and the next ended. After some moments, each was able to return to cognizance, though it was perplexing, as though their minds had merged for a moment and had just now separated. Trying to come to terms with what was happening was almost as difficult as learning their new body! 

And it was hardly to be the only fresh experience they would partake in that night. All three knew the libido of lions, and even though such comprised only a portion of their body, the necessity for frequent sex had been carried over. With barely a moment to compose themselves, the griffiness was already presenting once more, cunt still leaking the chimera’s seed. Curious, Jon reached out to sample their secretions, nothing like the lion cum he had licked from his own cunt during that wonderful afternoon. It was thicker, headier, and more pleasant in many ways, being experienced by the three in tandem. Curious, he lowered his body to allow Rachel the same chance with her goat tongue, something she took advantage of. They even turned around to grant Eric the same pleasure, even though his own sense of taste was diminished in comparison to their own. It was a simple pleasure, one the three of them enjoyed to take from the perspective of the others. 

As much as the griffiness seemed to appreciate the variety of tonguing they were getting, they were soon becoming impatient, stamping their lion paws and cawing out their lust. And the chimera trio was eager to oblige, getting up with much more experience and speed as they rutted into the willing beast, wondering, for as long as they could still form coherent thoughts, how many times they could fuck that night before they were finally, truly spent…

The rest of the party ended up being a blast. The two merged beasts made their grand entrance to the outside grounds, to the awe of those gathered. They were the largest, most magnificent beings in a menagerie that was full of exotic creatures. Better were the scents that wafted into their noses, from so many sources it was impossible to make heads or tails of them. But the one odor wafting off all of them in tandem was obvious, given their own proclivities. All were horny and in need of a thorough fucking!

Some of them were already in the midst of carnal acts as the two of them, or, rather, the five, came out to show off their merged forms. Naturally, there were those that wished to be fucked by the magnificent male manticore that the trio had merged into. Even the hydra, a beast that had scared the three of them initially, was fair game, one of the first to come and offer his ass. He was male, which suited the three of them just fine. His hole, or rather cloaca, as Eric could attest to, was able to clench around their member rather tightly, and although the chimera was significantly smaller than the serpentine monstrosity, they were able to push in, making the massive beast squirm! With how aroused they were by the contact, it took them no time to reach their orgasm, spilling what seemed to be a modest load compared to the size of such a beast. 

The night was hardly to be over, however, and the more the merged chimera fucked, the more the notion of taking things from the opposite end appealed to them. And, it seemed the hydra was more than interested, especially with the size of the throbbing dicks dangling from his cloaca. Jon felt more than a modicum of trepidation over the prospect, but the more they considered it, the more they agreed in unison. And with that, Eric raised himself, hissing his ecstasy as the hydra’s massive cocks moved into position, almost too much for the three of them even in their larger body. Still, filled to the brim and beyond, a fading thought passed through each in sequence, how amazing the potion transformation technology was and how much cum would be leaking from their ass once the hydra was done with them…