S4E8 - Umbra by cryptpik

Hello, and welcome to Dinner At Yiffany's with your host, Ta’kom Ironhoof

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On tonight's episode, " When a male doctor finds himself in a body he dislikes, what else could he do but make his own? With a silvery canid mask, and some tantalizing black slime- he takes his future into his own hands- and becomes the woman he always dreamed to be. A doctor, a mask, and some slime. What could possibly go wrong? Or really- what could be more right?"

Please enjoy, Umbra by cryptpik

“Alright, recording memo on.” The scientist’s computer gave an affirmative beep and booted a voice recording program. He took a few deep breaths before stepping through the doorway in front of him into a white-paneled chamber. The door slid closed behind him, locking with a subtle click. This was it. Trial day. In front of the man was a single pedestal with a silver mask atop it. The device was sleek and simple on the outside, with an appearance like the top of a canid’s muzzle. But he didn’t just see the apparatus as it was; when he saw that mask, he also saw the hundreds of prototypes that had come before it. Even without turning it over, he could envision the complex but artful circuitry that lay inside. Prior to the actual experiment, he needed to disrobe. As the scientist began taking off his usual protective equipment, he forced himself to look in the mirror attached to the back of the chamber’s door. The face that looked back was pale and disheveled, but there was still a small sparkle in those bagged eyes. His body was nothing special: short, receding hair, a flat chest, thin arms and legs, a flat backside, and a belly with the smallest bit of pudge. His entire form seemed to hang from his spine like a wet cloth from a hanger. As he pulled down his boxers–the last of his clothing–he watched his penis dangle completely unremarkably. With that ordeal over, the man was finally ready. He turned around and took slow, reverent steps towards the pedestal, as if approaching a deity. Once he finally reached the mask, he couldn’t help but stare at the device in front of him for a few seconds, looking at it from multiple angles. He muttered to himself while orbiting the thing. “I…being honest, there were times I wasn’t sure I’d make it to today. With all the setbacks, hiccups…the lost funding…” He cringed, remembering all that it had cost him to get to this moment. But he knew that pain would be forgotten very soon. The idea that he could have messed up, that this project would be a failure, didn’t occur to him; he’d given too much for it to fail. “But here we are. Finally, they’ll all see my vision! Umberfication…” He let that magical word trail off his breath like he’d just kissed it. Finally, once he’d fully collected himself the scientist reached forward and gingerly picked the mask up. Touching it caused holographic implants to come alive, and a screen of green light emanated from within. A thin, clear tube connected at the “nose” of the metallic muzzle stretched from the side of the platform. The scientist handled the device even more carefully, making sure to not rupture the tube as he rotated the mask in his hands. Once it was turned around fully, he brought it up against his face. “Test #1. Computer…begin the procedure.” As he said those words, he placed the muzzle against his head, lining the holographic screen up with his eyes. The sound of flowing liquid filled the walls of the room, and after a moment, a thick black substance pushed through the tube and into the mask. A drop of black liquid fell out from the device’s cavity. A single, viscous drop that sat on the tip of the scientist’s nose before spreading out. Then another. Then a cascade. The goo dripped down from the muzzle seemingly-infinitely, spreading out from beyond where it met the scientist’s skin. It worked quickly, moving from his nose to his eyes and mouth and across the rest of his face. All skin became covered under slimy blackness. From there, the fluid stretched itself out, filling in the space underneath the mask and effectively giving the scientist a muzzle of slime. For a few moments, the liquid covering his mouth and nose suffocated him, though it never entered his body. Thankfully he’d accounted for this; simply by willing it, the mask sent a signal through the goo and caused it to part from around the scientist’s mouth, eyes, and nose. It never would occur to the scientist how badly this could have gone if the mask’s brainwave synchronization wasn’t working properly. The black liquid continued to wash over his body, stretching down his face and tightening around his neck. Once it reached the man’s chest its growth accelerated, spreading in every direction. His oily skin was replaced by sleek rubber-like slime, shining under the bright lights of the containment room. A few seconds more, and the substance covered the scientist’s entire body. Once he’d been slimed from head to toe, a single constraining pulse marked that it had encased him completely. “Very good…gods, so tight-” the man observed, his voice slightly muffled by the slime stretched over him. He took a second to feel the slickness ungulate over his entire body. One moment it felt like his entire form was being constricted, tightened, played with. The next, it felt like he was wearing nothing at all. The sensation danced on his skin, energizing and stimulating him in ways he’d never thought possible. Once he’d gotten used to the wonderful sensation, the scientist stood straight up and held out his arms in a T-pose. “Computer, begin preparation for Test #2.” An affirmative beep was the only warning he got before panels on both the ceiling and the floor opened beside him. A pair of mechanical limbs stretched out, grabbing onto the scientist by his arms. Two more followed, going for his thighs. Each gripped on tight, to both the pain and pleasure of his now-extremely-sensitive body. For a split moment the man thought their pressure would rip the latex-like substance off him. Just that thought was enough to tempt him to shut down the experiment, but he stifled his anxiety and allowed the limbs to work. The hands detached after a few seconds and slid back into their panels, leaving metallic rings attached to the man’s body. The prosthetics, all the same silver as his mask, were attached at the joints of his elbows, thighs, knees, and around his ears. One final hand, a bit more delicately than the others, clamped a choker-like ring around his neck. That one was especially titillating, sending a strong shiver through both his body and the rubbery goo. The rings around the scientist’s joints were designed to be flexible, and he could still freely move his arms and legs even with them attached. Functionality had been the aim of the experiment over presentation, but he did admire how the silver bits looked against the shifting black of his new “skin”. “Stabilization rings secure! Computer, run Test #2.” As soon as the words left the scientist’s mouth, the mask came to life once more. The visor lit up brighter as more goo began to pump from the tube and drip from the device’s underside. Instead of flowing over his entire body, though, the slime pooled in specific places. The first place to change notably were the scientist’s ears; underneath the goo they remained the same, but the slime morphed like a mold on top of them, turning into conic shapes. With further correction, the previously-human ears now appeared like those of a canid. The specific model they had used was a doberman pinscher. Other parts of his slimy overcoat began to shift too now. The entire shape of his head slowly went from human to canid, much more fitting for the muzzle that’d already been made. A stream of goo resembling hair trailed down the back of his head, swirling endlessly with eddies of fluid. Gradually, the scientist felt an increase in weight around his pectoral muscles. On top of his flat chest, the slime became something much more buxom. A pair of breasts formed out of pooled liquid, starting off as simple circular shapes but gaining definition and size over time. By the time they were finished, the man had a pair of gooey D-cups complete with perky nipples. Just below, his stomach grew out as well, having a gravid appearance after a few seconds. The pooling liquid continued down, splitting between rounding out his thighs and bolstering his butt. His now chubbier form would of course require thick, strong thighs to keep it properly balanced. And it would just be off if he didn’t have a proportionate amount of ass. Finally, the liquid dripped down to his feet, where it spread out. The goo went from mirroring the man’s own feet to canid paws, including definition of individual toes and pads on the bottom. As the feet developed, his legs shifted too, resembling digitigrade construction instead of the plantigrade he was used to. This actually forced him to shift his skin body’s posture, standing on his toes in order to more closely resemble the mold. Once the man felt this section of the test was complete, he looked in the reflection of the nearby mirror. Everything was just as he had envisioned in development…except one small bit: a mound over the man’s pelvic region. As he looked closer, he noticed a slit cutting across the surface of the mound, seemingly leading into a tunnel. The lips of this organ were especially thick and wavy, and invited his curiosity and surprise. A dot the size of his pinky sat at the very top of the slit, almost teasing him to press and investigate it. Upon a full body examination, that wasn’t the only part that was different than he envisioned. Feeling his backside, he realized even his anus had been altered. He spread his cheeks in the mirror – now appearing like two black slime bubbles – and noticed the hole between them was now larger and with a lip-like layer around the rim. The scientist continued to admire the sculpture that had been impressed upon his body for several minutes, posing in various ways to show off its intricacies and verbally recording the changes. All the while he pondered…how had the mask known? He had programmed it to work intimately with his brain chemistry, but he hadn’t expected it to use his thoughts to improvise a design. It was as if the mask knew what he really wanted the anatomy to include. What he really wanted to look like and be. Once he’d looked over himself fully upwards of ten times, he gathered his composure. He knew what the next step was, which was why taking it made him equal parts excited and nervous. “Uhm…okay. Okay, this is it. Computer? Activate Prime Umberification.” The usual affirmative chirps were much more disconcerting. An artificial voice sounded through the entire chamber. “Prime Umberification may cause permanent, irreversible changes to the test subject’s body. No data is available on potential side effects, physiological damage, or chance of intended result. Would you like to proceed?” “Yes,” the scientist forced himself to shout. “Would you like to proceed using the form currently constructed?” That stopped him. The scientist turned back to the mirror to see the goo that had covered his body. The full chest. The digitigrade legs. The large, rounded paws. The vagina. “Yes, I would.” “Beginning Prime Umberification. Please brace yourself.” The mask’s visor began to glow red, various charts and data streams appearing on it. The scientist could usually parse all of them, but at the moment, an excruciating tightness constricted around their entire body. The feeling wasn’t entirely painful, but it was overwhelming. The only figure on the mask they could make out was a progress bar along the top. 10% Goo rushed into their mouth, nose, ears, completely overtaking their senses. 26% Their head went weightless for a moment, before their brain recognized itself in a new shape. 33% Their broad shoulders came in slightly, their arms thickening despite the loss of muscle. 49% The tips of their hands and feet began to drip. 63% Their thighs melted and then immediately after bulged. 77% A small ball of goo pushed out of the hole in the mask, popping out the tube before carving itself into a canid nose. 95% Their penis drew into itself completely, leaving a slit behind. 100% *** A high-pitched beep sounded from her mask. The experiment hadn’t noticed she had fallen to the ground until she opened her eyes. Or, more aptly, tapped into the ocular sensors of the mask. Slime creatures do not have eyes. As she stood up and looked in the mirror, she saw…her. Black slimy body, silver rings holding it structurally in place, visor keeping the goo circulating and in her preferred form. The woman tried to speak, now having to work with a maw instead of…whatever she had before, it was a bit fuzzy. It took a moment before she figured out how to open the thing, at which point she watched as ropes of slime stretched from the base of the mask to her bottom jaw. It was mesmerizing to watch them one by one rubber band back as she stretched her maw wide enough. “Haaaaa…uuhhh…oouudd…goouhhddd…” she managed. Good enough. She took her sweet time testing her slimy limbs, running them up and down her new permanent body. It wasn’t quite as tight feeling now, but just as slick and sensitive. The parts of her farthest away from the rings (namely her hands and feet) seemed the least stable, constantly dripping goo onto the ground or back into her own body. Even so, they had form, and she adapted to them quickly. She was excited to perform a very specific test. She teased herself a bit, dragging gooey fingers along the side of her neck and the collar-ring around it before reaching her chest. She was an experiment after all, meant to be fully examined and tested. Though her nipples were strong pleasure spots, she passed them for a prize lower down. Slick hands glided down her fat tummy, diverging just above her pelvis. One was most interested in the dripping slit between her legs. The other, the gaping asshole sitting between two plump cheeks. Carefully, she reached for her lower lips and felt around them. Immediately, the mask beamed a pleasure signal directly into her…brain? She wasn’t sure if she still had one anymore, or any internal organs right now, not that she cared. All she was concerned with was parting that slick tunnel and exploring it as fully as she could. Her loosely formed hands were perfect for sliding in and tickling the sensitive goo within. A sound halfway between a squeak and a squelch came out of her pussy in steady rhythm as she played with herself. Not to be outdone, the hand at her rear stretched her anus open. It barely moved, mostly due to always being stretched than anything else, but the sensation of preparing it was incredible. She started with two fingers, pinched together at their tips, and inserted them. A primal moan came from her maw as she plunged into her pucker and delved the tighter tunnel. A few minutes into this “test”, the experiment saw something flash in the corner of her visor. A diagram, seeming to depict her new anatomy, blew up on the screen. She managed to collect what little of her awareness was left and focus on it, and as soon as she did, a different sort of pleasure signal leaked into her mind as a reward. The display showed her vulva as it now was, including the slimy hand continuously slipping in and out of it. Slowly, it highlighted a part that hand was seemingly missing completely: her clitoris. Even a simple experiment enraptured in lust could take a hint. She stretched a digit on the hand inside her pussy upward and outwards, reaching under the clitoral hood. The moment the woman pressed against it and slime brushed against slime, an incredible sensation overtook her. The pleasure was almost overwhelming, forcing a series of gurgled nonsense out of her maw. Pressing onto the button continued the assault against her mind and caused her to double over from pleasure. It was a while before she was able to work stimulating her clit into her rhythm, at which point she was able to focus enough to continue playing with her anus as well. Thankfully, Umberification seemed to have made her mind less intertwined with itself. It was easy to plunge in and out of both of her holes in asynchronous rhythm; when one hand came out of her pussy, the other went back into her ass. The pleasure was continuous, constant, and building. Each hand, a bit less solid than the other parts of her body, was able to easily slip inside and ungulate in vibrating waves. If there were words to describe the sensation and euphoria the woman was experiencing, she didn’t know them; even if she had known them, her gooey maw was too busy moaning and drooling more slime. The scientist-turned-experiment enjoyed herself for a long time, conducting all sorts of unique and exciting tests with her new anatomy. The computer’s memo recorded every second of it, every slick noise, rubbery squeak, groan, and failed attempt at speech. As she felt herself close to orgasm, her thoughts drifted to how right this felt. How she deserved a body like this. She was the only one who saw this project through to its completion. The only one who had advocated for her own transformation. The one who had fixed herself. And after she came for the first time in her new body, a thick stream of goo firing out of her slimy cunt as her thighs shuttered and her pucker squeezed around her fingers, she had an incredible idea. An idea that would immediately lead her to get to work synthesizing more goo, designing more masks, and looking for more experiments. The type of idea that leads to global revolutions in amorous bliss, or damnation to lust, depending on who you asked. Why can’t everyone else be fixed too?

And with that, we've reached the end of Umbra by cryptpik. Continue to listen here, as well as The Voice of Dog, where Rob McWolf and the Friends of the Fireplace bring you even more wonderful tales from around the furry fandom.

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Good night and come…again