Omniphallic

Story by iplank on SoFurry

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A man is set to take inventory of a closed alchemist shop and stumbles on the lewd section of the transformative potions. He was only browsing, but after he accidentally manages to spill the entire rack on himself- he might as well have ordered everything on the menu.

Oh, and on the story's icon; from top middle counter-clockwise the silhouettes are of human penis, echidna, cat, dog, horse, elephant, cetacean, and snake.


(M CTF, hybrid)

Darik sighed as the sun started to get heavier in the sky. He works for a countess who made her fortune re-investing her money in small businesses. Unfortunately they don't all work out, and she gets her money back one way or another. An alchemy shop went under and he was charged today with taking inventory of the shop so the countess could sell it off to make her money back. He was basically done, so it seemed like he should be back home for dinner time tonight anyway.

Darik lit a lantern to see by while he checked over the rest of the shop. He just needed to check the basement now and take the inventory there and he will be done- he already recorded everything in the shop itself. He walked down the narrow stone steps into the cool basement air and as soon as he caught the glint of his lantern light reflecting off glass his heart froze. Oh no. There was racks and racks of potions down here in storage! The basement keeps them cool so they keep longer! Most magic potions require mana to saturate the physical materials, which takes time, so most potions cannot be made on demand without there being a long wait period. But because these are all premade potions- he has to individually catalog all of them. He can't just write 'a hundred premade potions' he has to write how many of each individual type of potion! Darik will be lucky to make it home for dinner TOMORROW.

Darik was surprised by some of the potions he seen down there. The high demand potions were in the shop- so all of these were more specialized, but some of them were things he did not expect potions to even exist for. Like; a potion for restoring a voice upstairs was normal, but down here he found one to remove someone's voice. Isn't that technically a poison? Did this guy even have a license to sell that?? He found many, many potions that transform part of your body. Frog feet for swimming, fish gills to breath underwater, bird wings to fly, the muscle of a bull, the speed of a cheetah. And then he really blushed and paused when he got to even more specialized potions of transformation.

There is an entire rack for genital transformation potions- and the rack behind that entirely of mammary transformations; size, species, shape, weight, even nipple-specific potions. No surprise the shop did not openly advertise potions like this but also equally unsurprising was a demand for such potions. Unlike a spell- these transformations would not rely on local mana in order to sustain themselves. They wear off eventually but its a set timer regardless of where you are or what you do. Darik lifted a vial for horsecock and smirked. He is the one taking inventory, so if he doesn't record it; no one knows it was here in the first place, and won't notice if it were to mysteriously go missing.

Should he, though? What if something goes wrong? He won't be able to get help without admitting first that he stole it. The alchemist that cooked up these potions isn't around to ask for proper usage and dose. Eh, better leave it alone. He probably can't even get it home properly anyway. Just carrying the vial in his regular pockets would probably break it without any case to carry it in. Darik went to put it back but the rack it was on wobbled and he had to steady it with his other hand to keep it from tipping over. The shelves were filled with racks, but the racks themselves were not very large- each one only held eight potions in two rows of four, so individually they did not have much weight to steady them.

When he placed the vial back and let go the rack rocked back the opposite way and clicked the vials together with the ones on the opposite side. Darik was afraid it would fall completely back and when to lift his hand quickly and steady it, but reacted so quickly on reflex that his hand hit the shelf it was on rather than reach the rack, cracking his knuckles again it.

"OW!"

The entire shelf rocked back a moment and he quickly grabbed it with his other hand and pulled back! All the potions jostled and clinked together as the racks slid around on the moving shelf. Darik pulled it back to save it from falling over but pulled too hard- and caused it to fall over on top of him rather than away from himself! He shielded his eyes from all the potion vials as they fell onto and past him- the thin fragile glass of the cheap containers breaking easily, soaking his clothes and then him under them with a half a hundred different potions!

"Oh. My. God." He blinked several times in shock. "The only possible way I could have fucked up worse than that, is if the potions exploded when mixed and blew the entire place to dust."

His heart froze as he slipped out from under the sideways shelf and let it fall the rest of the way to the floor. He was having a panic attack thinking about how pissed the countess is going to be, and then his worry shifted to the realization he just had the entire shelf of genital transformation potions dumped on him at the same time. So... what is going to happen to his junk? Like, if he got dosed with both horse and dog, how does that work? A horse dick is a lot larger than a dogs, so is his dick going to grow or shrink? He did not have to wait long to find out.

Darik's penis inflated to full erection almost instantly, and then started to tingle in pleasure without him even doing anything to it! He could even feel a tingle and tightness in his taint, and a few pulses of pleasure from all the way back in his prostate making him flinch back, nudging the shelf behind him. He quickly hobbled his way to the very back of the basement so he did not accidentally spill even more on himself. He quickly undid his pants and whipped it out- using his balls to hold his underpants down and out the way for now while he assesses the damages.

He suddenly felt pent up like it had been eons since he had sex or even masturbated. His balls clenched up to his groin and then with a faintly audible gurgle; swelled in size! In a powerful pulse his foreskin suddenly thickened, and it felt like his penis had suddenly turned flaccid again even though its size did not regress! He then felt another erection coming on, and his penis started to grow even larger! Rather than argue contradicting sizes- multiple doses were just going to stack the size of each on top of one another! His balls clenched and grew again, this time the skin of the scrotum darkening, looking almost bruised in coloration which then started to creep up his fat foreskin!

The foreskin kept getting larger, making his penis seem softer even though the shaft within was still erect. It also made his dick impossible thick. The glans then swelled, making him groan from the pressure almost making it feel itchy and the glans blushed purple and looked almost glossy like they were wet- but it was due to the pours being yanked completely smooth! The foreskin was so squishy and plush now it took both of his hands together just to cradle it properly! His dick almost started to look spherical for being as wide as it is tall!

His balls grew again with another clench and the skin darkened again to charcoal grey on his scrotum and foreskin. He bucked his hips several times as his prostate throbbed and he could feel it actually swell larger inside of him! His eyes went wide and he quickly scrambled to get all his clothes off- realizing that the fabric drank the potions too. By keeping his wet clothing on he was unintentionally increasing his dosage slowly, absorbing it out of the cloth! Darik paused his hands beside his nuts when he went to pull his underpants off- each testicle already larger than his fist. The moment he stood up straight again he groaned and his genitals created their own pleasure again!

Darik felt a powerful tingle of pleasure as well as a feeling like peeling a sticker off of your skin- the foreskin and inner shaft started to divide, peeling new flesh from the old! His penis started to slide further out of the bloated foreskin, making it more like a sheath, aside from it not being fused to his torso. Dark skin, lengthening shaft... horse traits? Darik groaned louder as his glans over-engorged, pulling as tight as stone. The glans swelled huge, becoming wider like a horses but retaining the helmet shape of a human! The divot down the center of the glans also deepened, and then taking both horse and dog traits his urethra stiffened and started to grow longer than the shaft behind it- creating a urethral procession!

As the shape of Darik's cock changed, its size continued to very gradually increase without stop. Since they are stacking size- even the tiniest species was still adding a bit to his existing size. The giant glans on the end of his dick caused it to arch slightly downward as it got longer from the weight. Darik's balls clenched and swelled again, but this time remained drawn up as the pleasure of his lengthening cock stretching out of his sheath finally built too far- and he quickly grabbed the base and middle of his expanding shaft to steady it as he climaxed!

Thick gobs of white arched out of him as the shaft bobbed up and down from the force of the orgasmic pulses! He could feel the flow all the way back to his butt through his swollen taint! He coated the floor with a bucket of cum- looking like someone kicked over a bucket of white paint.

The tension released and his penis dipped- the blood still pooled in the glans so as soon as she shaft started to soften it bent the entire cock down. His penis started to retract after orgasm but it was still getting longer- so he could feel more skin pushing back into the sheath but his actual dick wasn't shortening- there was just as much outside of the sheath as before. The sheath bloated from the retracting skin but then the blood pressure surged and it REALLY swelled! His balls started to do little hops in his scrotum again, and the feeling of release started to fade fast as the mutations forced his balls full again. Darik groaned and cupped his balls, feeling them clench against his hands. He could feel pencil-thick veins floating within the loose scrotal flesh. His eyes widened a bit when they swelled a bit larger against his touch!

He could feel the rush of blood in the veins feeding into his cock, like a rapid, powerful erection- except the shaft was very slowly returning to erection. The blood cells multiplying to feed the monster gathered mostly into the base, which now swelled tremendously and slid forward, shoving the sheath wider as it swelled within, getting harder ahead of the rest of the cock. Since the blood cells were multiplying to keep this mutant functional... he would lose the ability to return flaccid in the first place. His dick is getting more blood than his body has the ability to displace.

His dick was started to swell unevenly now. A huge bulge of a forming knot inside the sheath, but his dick was getting slowly larger at the base and less so at the end, gradually getting a tapering, and the blood pressure itched toward the end where it did not expand to match the pressure. Still getting longer- the length and tapering of a cetacean dork. Cracks in the near-black coloration of the shaft started to appear now as well; the new flesh is candy pink, and the bigger and longer it grows the further the dark skin breaks up exposing more pink, making it mottled. The entire shaft suddenly shifted its growth and became thicker suddenly! The structure below the skin seemed to shift and divots appeared in the side. The knot swelled bigger, forcing its way toward the tip of the sheath before popping out entirely on its own from lack of room in its home of fat loose skin! The knot was already the size of a soccer ball and slowly growing with the rest!

The veins in his shaft squirmed and fattened to feed the beast, becoming almost as thick as his fingers in some places! The veins on his knot however were much smaller, but also more numerous- webbing the knot with thousands of hair-thick dark violet lines. The weight of his still swelling balls was pulling harder on his body, so Darik reluctantly sat down on the edge of a large crate and just draped them off the front. His penis is as long as he is tall- jutting straight out from him with a very gradual downward droop from its overly large head at the end of the gradually tapered shaft. Only now did the feeling of peeling away stop at the base, now that the knot was exposed.

He winced several times as his penis built pressure in it, bucking downward! The shaft bent and straightened in pulses- trying to grow larger but unable to get any longer for some reason. It got thicker- the divot in the sides deepening. The very top trying to grow longer ahead of the rest, causing it to arch down. The itchy and bloated feeling of extreme blood pressure built toward the end, and finally a nub formed rising out just behind the glans and then a powerful pleasure caused him to bow forward, hugging the shaft to his torso! The feeling of flesh peeling from itself again, also sparking all the high-tension pleasure nerves as the nub divided further- pulling the extra-wide shaft in half! The divot down the sides went all the way through- his cock was splitting into two! A snake's hemipene! But because of its interactions with the other features- the two shafts were on top of one another instead of side-by-side, and the division stopped at the front of the knot. The knot prevented it from dividing all the way through!

Darik's balls sunk further and further down the front of the crate, bobbing one and then the other- swelling larger and heavier. The gurgle of rapidly churning fluid could be softly heard from within. Each shaft was now thicker than this thigh and almost two feet longer than his entire body is tall- and he has two of them! And they are still growing! The glans did not fork when the dicks split- so the penis that is now on top is a tapered pillar, like a cetacean dork. The changes in the two slightly deviating now. Darik had to lean further back to act as a counterweight to his ever-growing phallus threatening to yank him off his seat and onto the floor! Now when they throb the two shafts smack together and make him shiver from the shockwave of pleasure!

Darik suddenly squirms in place as a pleasure builds inside powerfully and he feels tremendously bloated as his prostate swells again- much more than last time! His lower gut actually visibly bulges from the side of the prostate inside! Deep burbling sounds came from his gut like bubbles in a water cooler. The rush of fluid out of him is so sudden Darik at first thought he was unintentionally peeing- but it was a stream of pre! Two full seconds pass and it cuts off abruptly as his groin muscles clench, then a half second later another stream started- by the third it was a second and a half long, then the fourth was a second, then a half second, then two quick spurts before it finally finished. It felt and looked like he had a full blown orgasm but it was nothing but precum overflow from his mutated prostate!! The flow caused changes of its own while this was still happening though- when his shafts split the urethra did not because of how the twin dicks are positioned. When the flow of pre blasted out, it got caught on a proto-fork in the urethra which built pressure and started to shove the deviant pathway forward! The bulge of backed up fluid could be seen in the base of the top dick and with every blast it shoved itself a bit further forward up the shaft- forcing the urethra to grow longer to let out it! By the time the pseudo-orgasm ended, a stream burbled from the upper cock signalling the urethra now connected all the way to the end of both now, and the last few drips connected the top dick to the lower one by a thin strand of lube.

The two cocks seemed to grow differently now- the top growing longer and only slightly larger while the bottom grew larger overall- making its girth quickly unweildly massive. Traits from the pillar-like elephantine phallus. Darik shivered from the intensity of the pleasure, noticing now that it wasn't just so strong that it was somehow overtaking his body... his entire body felt it. It started at his dicks but was echoed through his entire nervous system. The arousal and pleasure was too much for him to maintain his thoughts, causing his mind to wander or just blank out entirely, but he did still worry about the effects of the potions on the rest of him- because his skin is starting to blush and look swollen on many different places other than his genitals. He spilled the potion everywhere, but the potion was only meant to affect the genitals- so it doesn't know what to do with the rest of him.

His dicks kept banging into one another when his groin muscles clench, which causes a shock of pleasure, which makes the muscles more likely to clench again. The pleasure built a tiny bit faster than it was able to cool down, so each time they slap together he inches closer to orgasm. For a brief moment he felt his balls brush the floor- his scrotum now long enough and balls large enough to cover the entire length of the front of the crate he is on, before they raced back up to squeeze against his crotch! They are so large and his knot so bulbous that to get to his crotch they have to grind against the underside of his knot to fit- which is the most sensitive part of both dicks, shared between them! He lay back almost entirely so his narrow top dick pointed straight up and the fat monster below it stuck out at an angle as they both vibrated from the intense flow of fluid- this time actually having an orgasm! The load was even larger than before, because the last blast was just overflow from the prostate- this was the entire contents of it, and the contents of his balls at the same time. Each jet was so large it made heavy, wet slapping sounds against the floor as it landed, over and over in a growing puddle.

Through the intensity of his orgasm he did not notice the pleasure spikes instigating still more changes. The subtle bumps along the corona of his glans grew larger, stiffer, and starting to take on a slight cone-shape to them! Then as they became more pointed, several more points appeared in a ring around his dick below the corona, and then below that, and then below that too. A forest of soft spikes on the last fifth of his several hundred pound lower penis. They grew longer and stretched a bit more narrow, becoming stiff bristles, all leaning down toward the base of the cock. Feline penis barbs. A similar but different change happened to the upper penis. Little bumps, then cones, then little thorns, then big thorns! The formerly more featureless of the two penis was suddenly looking more like some sort of medieval weapon! They grew almost to the girth of his pinky finger and nearly two and a half inches long on the bigger ones! The end of the phallus became bulbous to better support them- the now broader very tip of the cock was still barren of these spikes. These are the barbs of a snake hemipene.

His dicks became relaxed, but aren't really capable of softening anymore, so they only relaxed enough to flop into one another and rest in a lazy arch for a few moments. The barbs of the two dicks however are very sensitive, and when the dicks touch the barbs get tangled together- sending pleasurable tickles into one another, which again woke them back up to stiffen right back to full erection. Darik felt like his brain was melting at this point. Everything felt so good and it wasn't stopping. Even if he TRIED to keep the pleasure going past an orgasm normally his dick would start to hurt- the muscles in his groin would start to ache and his skin would start chaffing from all the rubbing, but that was not at all the case here. Not only did he not feel like he was wearing out- he felt pent up again, only moments after his last orgasm!

The feeling of skin peeling away from skin resumed just behind the forest of barbs on either cock now, and for a moment the skin looked like it was bubbling outward as an equine-like medial ring fattened into existence! That means this is only their halfway point! His bottom cock alone has almost the same overall mass as his entire body! Now still more cock folded out from the length he already grew! The bottom dick now as thick as a fire hydrant and as long as he is tall, and now lengthening more. The top dick is one and a half times his entire height and as thick as his forearm. The top dick is hovering over where all the potions spilled, so he better not let it drop! They are so long at this point that he cannot move them anyway- if he tried to turn either way he would hit one shelf or the other and spill a whole new batch of problems onto himself.

His knot swelled a bit larger as well, but grew much, much slower than his dicks themselves- it seemed to have two distinct segments that wedged between the base of either cock, keeping them separated by its turgidity. His sheath was so big it formed a giant pool of fat skin folds spreading across his entire groin and lower stomach- held back by the size of the knot alone. Darik's legs started to feel stiff so he squirmed on his seat a bit and then moaned in pleasure. His whole damn body feels like a giant pleasure spot, even his ass felt good rubbing against something. He started to make micro-thrusts at the air unconsciously to enjoy the pleasure. But that only caused his legs to look still move swollen. His bones started to soften. The muscle changed shape slowly and stiffened with rising tension to match the levels of pleasure.

Darik's arms started to look swollen too, and even his fingers though more so toward their base, slowly making them look more cone-shaped, and making them quite hard to bend properly. His skin was blushing all over his body, and his hair started to fall out! His stomach gurgled and his prostate swelled even larger! His gut was looking slightly rounded now- not from fat but the size of his prostate! Never mind drips of precum- his twin dicks were firing short streams at regular intervals. His balls are now approaching yoga-balls in size, fully resting on the floor and still almost tall enough to reach the top of the crate he is sitting on. Even if he had enough room to get up and move around in here- he probably cannot drag the amount of weight they now have. On the up-side; that is also the only reason the weight and length of his cocks have not ripped him off the side of the crate already- his balls are helping him hold them in place and support the lower dick, which pushes the knot up and supports the upper dick.

Still more dick flesh folds out, allowing the swelling blood pressure to engorge both penis bigger and bigger. The lower penis is now one and a half times his height but as thick as his entire torso. Even with the insane amount of blood inside of it to try and hold it up, the weight of the gigantic helmet shaped glans was bending it down- and the longer it got the more it could bend in spite of its rigidity, and the glans were barely hovering off the floor now in the MIDDLE of the room while he is at the back. Which means it is almost touching the potions on the floor. The upper dick on the other hand is being angled up slightly thanks to the knot and so long that it is currently pointing at the corner of where the wall meets the ceiling on the opposite side of the basement! It is as thick as his thighs! The veins on the lower shaft were giant and projected far off the shaft- the shaft is black till the medial ring then swaps to mottled on the later half. The upper dick is almost entirely pink with only a few black splotches scattered down its length. The veins do not project on the upper shaft, but you can still see the pale violet lines below the surface.

Darik's neck and head even started to look swollen now. His legs thickened and lost definition, causing his lower legs to slowly erect on their own to stick out- no longer able to bend properly. His toes grew thicker but not wider, so as his bone structure started to dissolve the foot expanded out between them and erased his toes entirely, leaving him with a bulbous immobile foot with no digits. He used his widening, soft fingers to touch his head, trying to assess the damages but he trembled and his mind emptied of all but the most lewd thoughts from the pleasure. His head felt so good! His entire body felt good to touch- including the very hands he was using to touch in the first place, but his head was REALLY good. The skin felt oddly rubbery- at least where his hair used to be. His face has not been affected by the swelling- Darik had used his arm to shield his face from the breaking glass, so his face is basically the only part of him that was never directly touched by potion.

He moaned again when his upper penis finally spanned the entire room- the bulbous tip pressed into the upper corner of the back wall. As if trying to fight against the wall blocking it- the blood pressure spiked into the head and it swelled wider, spreading the barbs behind it, causing them to stand a bit further out. The skin tension in the barbs caused the color to drain on the surface- making them look quite pale in comparison to the vibrant shaft. With a wet squelching sound the swelling head of the upper penis broke open against the wall! The end branched almost looking like his cone-shaped fingers currently do! The quadruple headed penis of an echidna. So the upper penis is a bit of horse, dog, echidna, snake, and whale. The lower penis is elephant, horse, dog, human, and cat. His balls are immense, and their contents the sperm equivalent of a fucking zoo.

Darik could not stop moaning and rubbing his head and thinking of sex. The top of his head swelled bigger, turning redder as if irritated- though felt anything but. He looked at his biceps swelling suddenly and smiled briefly. Well, it might be a horrible accident, but at least it feels good, and it looks like its growing him some muscles too. He flexed his arms and watched the muscles swell even bigger, yanking the skin taut around them as they hardened. Wasn't all the potions that fell genital-only though? What animal required beefier muscles to host their junk? Although he supposed it could just have easily been a misplaced potion on the shelf- he did knock the ENTIRE thing over.

The transformation of his dicks seemed to slow to a stop at least now... which is good because one stuck over halfway across the room and is so wide he cannot fit it between his legs even if he spread them as far as he could, and the other dick is pressed into the opposite wall. Darik quickly let go of his head and tried to brace himself on the crate in sudden surprise as he started to get pulled forward! His legs were swelling and stretching longer at the same time- but they were losing their shape and becoming inflexible, so even where they join to his hips is pulling straight, which is forcing him out of a sitting position! He tried to shuffle himself back and only just now did Darik notice his ass has no shape to it anymore, either! His hips have devolved to calcium jelly at this point, so they just conform to whatever shape you push them into.

Darik was forced to lean way back almost into a laying position but was too far to the edge of the crate, causing him to start sliding off in spite of his best efforts to stay perched here! As his legs lifted up what had formerly been his feet inflated massively, tightening and darkening as the skin color shifted toward very dark brown. Those are glans! His entire legs are turning into horse cocks?! But they are really damn thick... so, horse and elephant probably. A real one-two hit for size. The bones were already gone from the legs- the stiffening in them is the blood pressure building- they are becoming erect. Darik slid off the edge of the crate, then had to shove off because the edge was jammed into his back otherwise. He has no legs though, so he wobbled on the equine glans of the hybrid cock legs, but the pleasure was too much and he ended up flopping forward!

Darik thought he was about to bust his nose on the hard floor, but stopped abruptly- only falling half a foot forward before his original two dicks caught him! The bottom dick is far too large and rigid to allow him to fall forward onto it! His cock-legs prevent him from falling backwards. He is a tripod of cock!! His gigantic balls rest on the ground but are so large they also press lightly onto his torso from below, giving stability to him with their weight while his dick legs continue to grow a bit, lifting him further up off the floor. Unfortunately his pleasure starts to spike suddenly again and he realizes that his bottom dick being against the floor means he is absorbing still more spilled potion off of it! Darik also squinted at the floor when he seen movement. Are there... tadpoles swimming in the spilled liquids? Wait... no way. Those are SPERM. The cum on the floor mixed with the spilled potions- his sperm have been absorbing the potions which have been adding the size of other animal sperm onto them over and over again! They have grown so gigantically compared to their normal size of half a single standard cell, to now be so large he can see them with his naked eyes! Hopefully they absorbed a lot themselves, because that does not bode well for him now that he cannot remove himself from the puddle.

Darik squirmed trying to move, but could not. His legs no longer function as anything other than dicks. The pleasure started to throb more and more powerfully, whiting out his thoughts. Even his hearing became muted during the throbs of pleasure because the blood pressure increased so much around his ears that all he could hear is his own heart. He felt the back of his head swelling up larger and tighter, starting to fold a bit at the edges against the part of his head that remained untainted. He felt something squirming inside, branching and digging through his body but had no idea what it was. A deep burbling sound echoed in the basement as Darik's entire lower body started to swell out rounder- his prostate becoming even more gigantic! The roar of rushing fluid could be heard and then the splattering of high-pressure fluid against the floor as this four dicks erupted precum- his original top cock the only one not pressed into the floor- so it fired precum against the bottom of the stairs up into the main shop across the floor.

Darik tried to put his arms down to his sides and just rest, while the potion does whatever it wants. He clearly cannot do anything to stop it at this point so might as well just let it have its way, and wait for someone to either find him or the potion to wear off. Neither would happen soon- he has the only key to the shop and since the shop is closed, he locked the door in spite of being inside. And if the sizes stacked from these potions- the effect duration might have also stacked up. He could not rest his arms down however. His neck was swelling so it was hard to turn to get a good look at them. His biceps are absolutely massive and veiny, but they swelled up into an odd shape- instead of up and out they swelled all around, becoming spherical- the lower curve holding his arms up against his body. Wait... those aren't muscle, they are canine knots!! His arms are turning into cocks too!!

His now soft and amorphous digits all gathered and fused together into a single procession. The feeling he felt digging through his body was a branching urethra- spreading out from his prostate below like a perverse tree. A branch of it dug up from inside his torso, through the knots that used to be his upper arm muscle and down through his forearm and into his hands. Or what used to be a hand. What had been his fingers opened at the tip as the urethra cut all the way through, revealing they are now the urethral procession of a canine cock- the pitted end of the shaft is what used to be his palm! His skin became reddened and his arms quickly swelled thicker, pulling the shaft straight and robbing any mobility they had. He felt something almost like the hairs on his arms standing on end- but he knew that could not be because they aren't arms anymore and don't have hair! Little skin tags formed around where his wrists were, then swelled and lengthened, stiffening into feline barbs! His arms are dog&cat, his legs are horse&elephant!

His prostate gurgled even louder and swelled still larger, but his skin did not expand to accommodate- so once it had shoved everything else out of the way or absorbed it entirely, its growth pulled his upper body downward, to make him wider! It felt like he was melting into his genitals! His original gene coding turned into placeholder biomass and then restructured to phallic cells. It made his work-in-progress state sort of like human clay, freely shapen into whatever. The bulging skin of his shoulders started to fold a bit as his torso collapsed partially to form pseudo sheaths for his arms. Not like they had any functionality anyway- he is physically incapable of going soft, there is nowhere to displace the blood to.

His head swelled larger and tighter too, then his inner torso started to push out while the skin and outer portion of his torso sank a bit lower! He was completely losing all human shape! He could feel another passage tunneling up from his prostate. Through his upper torso? But there is no dick for it to connect to? It shoved itself into what used to be his throat at the fore of his swollen neck, now just as thick as his remaining upper body as it lengthened slowly. The movement of the throat-urethra in his soft, human putty-like body caused his jaw to collapse into it as it shoved up, and then he went cross-eyed a moment as his thoughts completely blanked. His entire body pulsed in pleasure and a million pornographic fantasies blasted through his mind in fast-forward. The urethra cut straight through, behind his face and in front of his brain, shoved right up against his greymatter.

Darik obviously doesn't have a mirror to realize that the back and top of his head have swollen into the perfect shape of human glans, and now the urethra connected up through his head to reach it! Where his mouth and throat used to be was now part of its inner lining... which means he can taste whatever blasts up through it. His upper jaw remains intact, but the urethral bulge shoves up into where his mouth used to be to reach the top of his head- so it sort of looks like he is sucking on the tube that is his own urethra. Liquid pressure quickly gave him his first full-body erection and his eyes rolled back as he tasted the first jets of cum from his body! All of his dicks erupted all over the place together- but the urethra through his body is the widest, and thus can fire the most cum in the least amount of time. When the urethra bulges it presses against his brain, causing his thoughts to get whited out entirely. No thoughts, only pleasure. Don't think, just feel.

The glans on his head swelled even larger and his torso pulled taller with every powerful jet of cum! At the very least, all the cum collecting on the floor was shoving the spilled potion away from him. Though... at some point they will mix together and he will once again be exposed to it, in addition to a few billion over-sized sperm. What had been his outer torso melted downward, pooling to form a proto-sheath around the two arm cocks, which thanks to sinking down are now above and partially in-between the leg dicks and the lower dick... dick.

Blood kept surging into his head with each new blast of cum as his orgasm just kept going. His balls spreading on the floor as they grew bigger and bigger- they could not raise or lower with their contractions because there was no space left for them to hang in the first place. The base of his torso-shaft swelled gigantically, almost looking like a knot- but much more springy and rubbery as it was just his grotesquely mutated prostate. The glans on his head swelled tighter, stretching larger, causing all the pleasure receptors to tingle at once. The cleft deepened, and the corona became so engorged it started to push his brows down, then his eyelids! The corona ate his ears on the sides- he could not hear outside sounds anymore, but could still hear the rush of blood, cum, and hammering of his heart beat just fine. The glans swelled out down over his eyes, blinding him, but not absorbing them. His nose remains where the frenulum should be, wedged into the cleft on the underside of the giant glans. His eyes remain but are under the edge of the corona, so unable to actually see anything. His mouth is sort-of there, but fused to the urethra, so he cannot talk, just taste his own ejaculate.

After he did not contact the countess, she sent other workers to track him down and failed to do that, either. Darik had vanished off her radar. So she eventually sent someone else to do his job- when they arrived at the alchemist shop they seen the front half of human glans shoved through a burst window- the corona too wide for it to pop all the way out. When he tried to open the door- the moment he touched it, it exploded off its hinges and a giant horse cock sprang out, wide enough to fill almost the entire doorway! The entire building was filled with dick! Which is impressive because... he was in the basement. The man looked around confused trying to figure out what to do and noticed the ground around the building was broken. There was cracks in the ground and road where the land suddenly became uneven. Darik had grown so many cocks, and grown so large that they burst through the cobblestone walls of the building's basement and were currently fucking the earth itself- digging through the ground like a tree of flesh.

It is a good thing they found him when they did though- because the situation was actually even worse than it looked on the surface. In order to grow that big- he mowed over every other potion in the basement, so his core where all the dicks joined together was currently covered in an expanding array of mammaries from various species, and starting to spround random horns and antlers. If he actually still had a body to transform he would be growing a wide assortment of miss-matched limbs and tails too. They were going to turn him back now, after several days- but oh boy is Darik going to have some explaining to do for this one.