You Can't Hyde (Jekyll And Hyde TG)

Jekyll wasn't what you'd call a respected member of the scientific community, even if he was talked about frequently. It wasn't like he cared much, those idiots allowed to call him a quack all they liked. He knew their work would never amount to even a smidgen of what he was going to accomplish. It would have been nice to have an assistant or two, but all of them were incompetent, and no one wanted to apply after the last once had left with acid burns after not following his instructions. Sure the burns had been his fault over the minor mistake, but how would they learn without some pain? Still the resulting lawsuit had drained many of his funds, his plans in turmoil as he now had to do all his work in abject squalor.

Said work was a complicated mish mash of principles that sounded spiritual, but Jekyll would throw something heavy at anyone who compared his scientific forays with the uncultured idiocy of mystics. He considered yin and yang to be less a way of life as much as primitive cultures trying to explain phenomenon far beyond them, like sun and moon gods battling it out in stories back when his evolutionary ancestors didn't know about the rotation of the earth. Besides there were plenty of studies on the different halves in brains and how a severing of their connection led to interesting results. His serum was in a ways, steroids for the mental processes, a way to split the brain in two and double the potential imagination and processing power of a single person.

In some ways it was like creating a whole new persona out of the spare thinking process of the inactive sections of a brain. The potential of it was limitless, the brain's control over bodily systems well logged as the physiological benefits were impossible to consider without testing. The issue merely lay in balancing it out, his current experiment using estrogen to counterbalance the potentials of an unleashed male id as he struggled to get the ratios right for his theoretical final mix.

It was as he was titrating it to its final stage for an experiment that a call came in, one of the rare, desperate applicants looking for work, Jekyll's face alight with a terrible joy, his mouth in a confident smirk. The poor fool didn't know he wasn't using them for work, but as a guinea pig, the lack of a resume and purposefully low pay weeding out anyone with ability or resources, Jekyll certain that no matter what came of the trial, this would be a person no one would notice going missing or at worst, assume they ran from debts.

"Why hello there. This is Dr. Jekyll."

He turned from his work station, the vibrations from his chair making the loose handle on his cheap bunsen burner slacken, upping the heat as the squeak of it turning was hidden under the conversation. Further faults of his cheap equipment began to show themselves, the higher heat too much for his discount, used glassware, small cracks forming along the bend of a flask, glass too small to make any sound as it fell to the table enough to let a small stream of the experiment rush out the glassware, the angle perfect as it spilled into his half empty coffee, the dark color hiding the glowing liquid as the overflow over the crack soon leveled itself as Jekyll finished his call.

Being polite and suave always gave him a headache, the doctor massaging his temples as he glanced at the rebalancing, happy at the progress, unaware that the currently estrogen laden formula had contaminated his coffee as he took a gulp. He always brewed it strong, yet it didn't take long to realize that something wasn't right, the dark fluid sputtering out as he coughed, a burning feeling like accidental exposure to raw capsaicin running down his throat and up his nostrils, the fire burning as it rolled into his eyes, cooking his brain as he let out an anguished, fearful scream.

He thrashed in his chair, a leg kicking the table with his experiment as the boiling fluids twirled over, splashing him with liquids hot enough to cause instant burns as the rollers on the chair sent him backwards, his screams quivering in pitch as the fire in his throat smoked the struggling lump rising and falling desperately inside.

"AGGGH AAhHHH FUUUUU-CHHK CHHK CHHK UNNGH!"

His skin was red and peeling in spots, the burns from it spreading as more and more of his arms' skin shed like a lizard in molting season.

His skull was throbbing, literally, the bone under his forehead bulging as his groans continued to rise in tone and terror. The plating wasn't just shifting but cracking, fault lines forming as his molten brain juice made the internal pressure inside steam out his eyes, said eyes literally bulging as the sockets cracked outwards, the force pushing his eyelid follicles out as urges swelled inside his quivering mental state, his underlying personality trying to free itself from his current id in the most painful way possible. His cheekbones were breaking, rounding the shape of his face, his nose melting under the heat as he felt the bridge of it slide into his skull, screaming as the heat of his bones cooked the flesh above, fat boiling off as skin peeled to reveal smoother, creamier stuff. As his cries reached past an octave change upwards the taste of burning only grew as his shifting Adam's Apple shrank with each utterance, his lips swelling with boiled fat trying to escape, threatening to rupture them open before settling into plumpness, a harsh swallow clearing his throat from the burning coal of an Apple plopped into his stomach, immediately setting his acid to a rolling boil.

"UNNGH! UHHN! FUUUUUUCK NOO!"

There was so much pain, unbearable as his hands dug into the armrests, his thoughts fragmenting as the force of his grip broke the bones in his fingers and hands, the peeling dead skin rising from his nails and scalp as his frame shrunk.

Jekyll watched as his fingers broke into themselves, his palms and fingers thinning, the bones threatening to stab out as the skin tented like an overtight glove, the lengthening joints of each finger stretching as his nails grew into manicured claws. The muscle in his arm was in various stages of decomposition and recomposition, the muscle in his lower arms dissolving, bubbling out through the peeling layers of flesh, the stuff in his upper arms having a similar process as his lips, the fat burning and bulging as it turned into an even coating, the muscles twitching as long, feminine hands scrabbled for purchase, Jekyll losing control of them as dark brown hair slid past his cheeks.

"Mmm~ is it painful?"

The voice echoed in his head, the throbbing of his forehead worse, tears streaming from his eyes from the pain, every word agony in his skull. He could only respond in screams as his right temple throbbed, then the left, his nails unclenching as the feminine fingers moved up to the peeled border, grabbing the other's arms in a perverse hug as they tore at the loose skin hanging off his body. Fresh agony tore through his body as his hands moved upwards, pausing as they reached his shoulders, the nails digging in as he felt them press into his shoulder blades.

"Scream for me more."

There was a violent sound as they tore with all their strength, digging into the meat of his shoulders and shaping them, mashing bone into muscle as they forced them to round, Jekyll's mind absorbing every last painful detail as the throbbing in his forehead worsened. While his hands were shrinking his frame, his brain felt ready to split in two, the pain aiding the invader in his mind, removing any chance he had at fighting back as thoughts began to merge with the push of invasion. It wasn't the only thing throbbing, his cock unable to get hard, but something under it trembled, his nipples the same as the invading voice moaned with sadistic glee.

This was impossible, Jekyll quivering like a human sized pile of jello, his screams maturing to a voice he couldn't help but notice felt similar to the one in his head, torturing him as his brain clefted harder at the realization.

"Ah it seems you still have some deductive reasoning. Does that mean I'm not trying hard enough?"

He could barely take anymore, his hands shedding his white lab coat, untucking his shirt to begin feeling up his waist, the fingers meshing as they squeezed with an iron grip. Organs groaned in protest on the verge of rupture. Bones creaked and rattled, his innards already suffering from the nausea inducing bubbling in his stomach. The more pain he was put through the faster the throbbing grew under his nipples, something bubbling up, his ribcage struggling to contain it as pressure continued to mount.

CRIIIICK

"UUUNGH AAAAGGGH!"

His rib cage popped open, thrusting his chest forwards as the bones scraped against his spine, sending all the red flags tearing through his brain as he struggled not to pass out. The tops of shirt were beginning to rise, buttons tensing at their threads as the melting skin seemed to loosen, stretching past what was reasonable, the gases from his stomach and the melting of muscle filling them with hot gas as his nipples felt broiled over the gaseous, hollow spaces.

"Wh-yyyyy is th-th-thIIIIS H-AGGGGH!"

The feminine hands on his waist were now really trying to crush him, the heels of their hands digging into his sides, muscle and bone trembling, ready to part as the voice in his head taunted him.

"This was what we wanted isn't it? What we were trying to do for the last few years. We always knew our serum could change everything and look. You're going to become who you were meant to be. Free of doubt, free of this whimpering conniving shell. It's time to make pain instead of just taking it!"

And with that, her hands bore down, the sound of bone and muscle shattering drowned by his screams.

His head and his chest were competing for which would split first, his flabby sides scrunched by his merciless fingers, organs twisting in his guts as the serum forced them to shrink as he felt his innards thrash and shift viscerally every step of the way. It was incredibly painful to be shaped like clay, molded and stabbed as it took minutes to add the proper curves to his abdomen, his spine trembling as it grew packed between sheafs of torn, ruined muscle and needless runoff. The loose skin on his chest that was bubbling soon made its presence known, tugging at the clusters of mass his hands had displaced, the nausea making his head buck forwards as he was certain he was about to hurl up everything he had ever eaten in life. Instead his stomach acted like a pump, the sack slamming inside his bowels as the pressure forced that tossed aside mass to pump itself upwards, his screams rising as the sagging loose muscle of his abdomen began to rise.

His body wasn't made for breasts, everything telling him that as muscle tore from the influx of fat, the already clobbered collarbone and breastplate cleaving further as drool fizzed from his mouth. There were no screams that could encapsulate the raw agony of it, each pump slamming into his core, flattening it further as his breastplate creaked. His entire being felt like it was splitting apart, his core gyrating as it curved, thinned, that spare mass shunting upwards as his loose flesh stretched to its limit, only contained by his shirt which was already on the verge of splitting itself. The pain was tying his spine into a knot, that knot growing denser and denser as the pressure continued to mount. He had been suffering in silence, but that was about to break, just like his spine, the throbbing growths under his nipples trying to break free. In one fluid motion his spine snapped, two fatty breasts breaking open the top buttons as his hands tore at the nipples, leaving his new breasts raw and glistening in the chill.

Somewhere through the pain, he could feel a perverse pleasure, the splitting pain in his head more excited as he could feel her voice giggling. That throbbing under his cock was equally excited, starting to grow, his limp dick stiffening not from excitement, but insertion. There was no pleasure to be found, his screams reduced to pained whimpers as a solid nothingness pressed into the base of it. He could tell this was the voice's arousal showing, his pained whimpers fueling her arousal further as the nothingness began to jiggle around the base, thrusting not just into his cock, but around it. It didn't feel like fucking as much as it was loosening his cock, dislocating the damn thing as cum wasn't ejected as much as forced out as the emptiness grew rougher with his struggling cock. The voice was getting louder, his lips trembling as they desired to speak with her voice, to give in and end the suffering.

Jekyll tried to fight it, to ignore the pain. The only explanation was the serum. Somehow there must have been cross contamination, the fact that this was a part of his id making a certain amount of sense even if the implications of what his deeper desires were was disquieting.

"Oh what's surprising you about this? Didn't you want to show everyone? Well here are your results, this is your success. This is what we wanted."

He didn't understand how she could enjoy this amount of pain, knowing they shared the same-

"Body?"

His lips moved now, her voice in control, a slimy sound now emerging from his cock as it was pushed to and fro.

"Oh I see you as more of a scab than a part of me. And even if it hurts, it feels ever so satisfying to pick at it. But before I tear this thing off..."

His screams were truly silent, contained in her head as she laughed, his knowledge cannibalized by her as his toes tensed outwards, his feet contorting as his shoes slid off their shrinking facades.

She relished the gripping of his calves, feeling the muscle give under her grip, her form hidden under his ugly shell like a statue in marble. The bloat of flesh in her thighs soon tore at the remnants of his legs, mass squeezing itself into a compact space until it tore apart, his squeals beginning to weaken as his throbbing, bouncing genitalia slapped against thick thigh meat. It felt like a muscle spasm mixed with a tear, the pain still throbbing as more mass packed into the area. The cries only she could hear continued to turn her on as his cock stretched, the cum already watery as the hungry part of her continued to play with his meat, the pain enthralling to a sadist like herself. It kept cramming itself inside, much like her brain, the cracking in their skull starting to resolve in thick tears, the spare brain matter thickly dribbling down their cheeks as Jekyll's resistance continued to fade. She was keeping most of it, just the weak parts had no room in their skull.

She kept willing the fat to spread, her ass cheeks wobbling, making the cushioned seat a source of its own pain as crying nerve endings were squashed in the shifting, struggling to break free as fat slid over bone and gristle. Soon enough she could feel the pain piercing her, fucking her like a dildo as it winched apart their hips, her moans and his screams blending as one as the emptiness thrust fully through his cock, the last of his cum weakly leaking down their thighs as she felt an ass cheek, tearing at the old skin to free it like she had her breasts. There was little left now between Jekyll from becoming the new id, his thoughts being stamped out against his own skull, his screams ever weakening as each painful throb forced more of him out.

"Ah now that we're here at the end, I really should think of a name for myself. How about Heidi? How does that sound er... whoever you were. Oh and as a doctor, I guarantee this is going to hurt."

She felt him resist, a mere thump against a corner of her head, the threat of his cock going the way of the dodo enough to elicit at least some resistance before she finished him off for good. Heidi listened to him beg, hearing him scream as she gripped their cock, massaging it into the nothingness as her innards felt like they suddenly grew teeth, gnawing on it as his foreskin limped, the emptiness hollowing out their cock with thorough, small pricks leaving a drooping shell of skin behind. It wasn't doing a half bad job of filling her emptiness, Heidi moaning at the tremendous tearing going on, feeling as muscular ropes latched onto the shrinking cock meat as they tore away chunks, Jekyll's thoughts unable to take it as the most sensitive of areas was utterly defiled by  her will.

Blood mixed with cum dribbled from the fluttering tip, the real pleasure finally hitting as the last of his shaft was filleted, splitting into pieces as it dived inside with a violent, shuddering expulsion of useless chunks and fluids. She felt whatever was left of Jekyll whimper, suffocating as her brain finished expanding, something popping nicely as the last of her tears dribbled down, no loser whining in her head any more as she gave a sigh at the flaccid shell of a cock. She gripped it with two fingers and tugged, letting it tear off to reveal a wet, throbbing clitoris, her other hand fingering it to completion while she tore off any remnants of skin left on her.

Thankfully, no one would care about where he went off to, that weakling the perfect victim for her serum, though now she did want an assistant. Sure she'd only use them for bullying, but she had so many people to take this rage off of. As she glanced at the mostly full flask of serum, she wondered when the next scientific symposium was. She had a few ways to liven the festivities, and once she spiked the punch, she was excited to see how silly her experiments were now once they all became her test subjects…