Chapter Text
"Doctor, we're not ready yet," a trembling voice called out from behind a thick pane of glass.
Ignoring the protests, the stern-faced woman in a lab coat flicked a switch, sending a jolt of electricity into the cage of the creature. Its fur stood on end, a piercing shriek echoing through the sterile hallways of the underground research facility.
The creature was a grotesque amalgamation of man and beast, its body a twisted mockery of hairy muscular human anatomy with the head of an enraged mandrill. Its eyes gleamed with a malevolent intelligence that no mere animal should possess. The room was filled with the acrid scent of burnt hair and ozone as the current coursed through its muscular frame.
"You will be ready," the doctor retorted, her voice cold and unwavering. She was Dr. Elena Castellanos, a renowned geneticist whose obsession with power had led her to create the most abhorrent creature the world had ever seen. Her once prestigious career had crumbled under the weight of her unethical experiments, leaving her to operate from the shadows of this secretive government-funded facility.
The mandrill's cage rattled as it threw its powerful body against the bars, its eyes never leaving hers. The creature had been her personal project for years, a culmination of her most twisted desires for dominance. She had bred and mutated it, pushing the boundaries of nature to create a weapon of unparalleled strength and cunning. But the most significant alteration had not yet been discovered.
One evening, during a violent thunderstorm that caused even the most stoic of researchers to jump at the crackling of lightning, Dr. Castellanos was observing the creature's chamber. The lab was eerily quiet except for the distant echo of rain and the occasional clank of the cage. As she approached, she noticed something odd. The creature was hunched over its back to her occasionally grunting, its breaths coming in ragged gasps. It's body was tense, muscles rippling with an unmistakable tension.
Curiosity piqued, she leaned closer to the glass, peering through the condensation that had formed. To her shock, she realized that the Mandrill was masturbating, its massive, uncircumcised cock thick with smegma. It was an act she had never witnessed before, and she couldn't tear her eyes away. The sight was both repulsive and fascinating. As the storm outside grew more intense, so did the creature's actions, its movements becoming more frenzied.
Suddenly, it stopped and turned to face her, a sinister grin spreading across its simian features. It took a deep whiff of its own scent and the lab was filled with a pungent, musky odor that made her gag. Dr. Castellanos felt a strange warmth spread through her body, and she found herself unable to move. Her thoughts grew hazy, and she felt a sensation, one she had never experienced so strongly before. Desire.
The creature's member grew before her eyes, reaching the full extent of its ten inches, thick with veins and smothered in the potent smegma. The room seemed to spin as the doctor's own body betrayed her, her legs growing weak and her breath shallow. Her eyes were glued to the monstrous phallus, her mind nearly blank of everything else.
With a grin that could only be described as wicked, the Mandrill poked its cock through the bars of the cage, the tip grazing her trembling cheek. The contact was electric, and she could feel his power seeping into her very soul. It was as if all her inhibitions were being peeled away, one by one, revealing the primal creature that lay dormant beneath the veneer of civilization.
Dr. Castellanos's hand shot up to her face, not to push the offensive appendage away, but to caress it. The smegma-covered shaft was surprisingly warm and pulsed with life against her skin. She could feel the energy emanating from it, a siren's call to her very core. The creature's grin widened, revealing rows of sharp teeth as it watched her succumb to its will.
"Suck it" the Mandrill growled in a deep, guttural voice that sent a shiver down Dr. Castellanos' spine. She obeyed without question, her eyes glazed with lust as she took the tip of his cock into her mouth. It tasted vile, like the musky scent of a wild animal, but she couldn't resist the power of his influence. Her mind was a fog of need, her body moving on instinct alone.
"Open cage" the Mandrill bellowed, the sound reverberating through the lab. Dr. Castellanos's trembling hand hovered over the control panel, a war waging in her own mind. But the creature's power was too strong, and she found herself inputting the sequence to release the creature. The cage doors swung open with a hydraulic hiss, and the Mandrill stepped out into the room, its cock still erect and gleaming with spit and pre-cum.
It grabbed her by the hair and threw her to the cold, steel floor of the lab. The Mandrill's massive cock swung menacingly as it approached her, the smegma coating it glinting under the harsh fluorescent lights. She lay there, helpless, her body responding to the primal commands of the creature's pheromones. The rain outside had turned into a deluge, echoing the tumultuous storm of passion and fear that raged within her.
With a savage tear, the creature ripped her lab coat and blouse from her body, revealing her heaving breasts and trembling stomach. The sound of fabric giving way seemed to echo through the empty corridors like a battle cry. Dr. Castellanos felt a strange mix of horror and arousal as the creature's eyes fixated on her exposed flesh, its pupils dilating with hunger.
Her dress was next, the delicate material no match for the Mandrill's brute strength. He tore it away, leaving her in nothing but her underwear. The sight of her naked body seemed to drive the creature into a frenzy, its cock swelling even larger as it took in the sight of her vulnerability.
With a snarl, it pinned her to the ground, one hand wrapped around her throat, the other pushing her thighs apart. The smegma-coated tip of its cock pressed against the fabric of her panties, straining to breach the barrier. Dr. Castellanos could feel the heat of his lust radiating from his body, the room spinning as the lack of air started to cloud her vision.
And then, with a brutal thrust, he was inside her. The fabric of her underwear tore and was pushed deep within her, the pain mixing with the overwhelming pressure of his massive girth. She could feel every inch of him, stretching her beyond what she thought possible. The sound of fabric ripping was accompanied by her muffled screams, the only sounds in the otherwise silent lab.
The Mandrill's grin grew wider as he felt her body submit to his power. He pumped into her with a ferocity that seemed almost inhuman, the smegma acting like a lubricant as he slammed his cock in and out of her. The doctor's legs wrapped around his waist, not to push him away but to pull him deeper, her body responding to his pheromones like a marionette to its master's strings.
With each thrust, the crotch of her panties was pushed further and further into her, the fabric straining against the walls of her pussy. The sound of it was obscene, a wet slapping noise that filled the room with every movement. The pain was intense, but she found herself craving more, her nails digging into his back as she urged him on. The Mandrill reveled in her submission, his eyes gleaming with malicious satisfaction as he watched her struggle against the overwhelming pleasure and pain.
The fabric of her panties was a mere annoyance to his monstrous size, and with a particularly violent thrust, the material gave way. The fabric ripped, allowing his massive cock full access to her fuck tunnel, which was now filled with her juices and a few shreds of her ruined underwear. The feeling of his bare, smegma-laden cock inside her was indescribable, a mix of pleasure and pain that sent waves of conflicting emotions crashing through her like the thunder outside.
Her nails raked across his back as she moaned in a symphony of agony and ecstasy, her legs trembling and her body convulsing with every deep penetration. The Mandrill's eyes rolled back in his head, his grunts growing louder as he felt her pussy tighten around his cock. The smegma had worked its magic, amplifying his power over her until she was nothing more than a receptacle for his seed, a living doll to be used and discarded at his whim.
With a roar that seemed to shake the very foundations of the facility, he reached his climax, his cock pulsing as he emptied his thick, hot semen into her womb. The force of his orgasm was so intense that it was as if he was branding her from the inside out, marking her as his property. She felt it fill her up, a sensation that was both terrifying and exhilarating, the warmth spreading through her core like a wildfire. She could feel what was left of her free will slipping away with each spurt, replaced by a mindless need to serve her new master.
"Free me" the Mandrill grunted, the words barely intelligible as it pulled out of the doctor's limp body. She lay there, gasping for breath, the stench of sex and sweat mingling with the chemical odor of the lab. Her eyes were glazed, her body trembling, but she knew what she had to do.
With shaky hands, she reached for the control panel, inputting the code to disable the security systems. The creature watched her with a smug look, its chest heaving from the exertion. As the last lock clicked open, the Mandrill leaped out of the secure lab, its massive cock swinging between its legs like a weapon.
"Follow" the Mandrill grunted, its voice now a deep, commanding growl that sent shivers down Dr. Castellanos' spine. She obeyed, her legs unsteady as she rose from the floor, in a trance, her body and mind under its complete control.