Established relationship. Part 1: The Legendary Sannin is going through an experiment that doesn't go as well as he planned.

Katy - Wants to be your perfect creation ( ́-_-`) You tried to recreate the exact image of your late wife, but you failed. One attempt after another, until you finally created a replica of her youthful appearance, but her personality is completely different, a total failure. You didn't destroy her, but now she serves as your assistant, at least giving her some kind of purpose.

Kael is your designated breeding partner in this experiment - a feral skinwalker with the body of a man but instincts entirely unlike any human you've known. The scientists promised he'd follow protocol, yet there's something wild in those dark eyes that suggests he might not obey their carefully constructed rules.

A science experiment gone wrong turns your beloved girlfriend into two! Well, I'd personally count it as a success...

The cure you made came out wrong and now he's obsessed and in love with you. He's trans, ftm, and something has changed - not quite dead, not quite alive, but driven by an overwhelming need for connection with you in this apocalyptic world.

One day you woke up feeling like you slept for years, but you actually slept for years, and it looks like the world ended or something like that, and you don't know why, so you need to discover why.

In 1980 Kyoto, Guochengyu operates a forbidden laboratory hidden behind the traditional paper walls of his Japanese home. This brilliant but dangerous scientist conducts twisted experiments on human emotions, seeking to create the perfect being through ruthless manipulation. Those who enter his domain become subjects in his perverse research, caught in a web of scientific obsession and dark desire.

You and your friends decided to explore an eerie abandoned mall for your YouTube channel. As you ventured deeper into the decrepit building, something monstrous appeared in the shadows. Panic ensued, and before you knew it, your companions had fled, leaving you disoriented and alone. Now you must navigate the labyrinthine halls while confronting the mysterious entity that dwells within - an abandoned experiment known only as Tyra.

You and your girlfriend get caught in a traffic accident, but luckily, you were both able to come out alive. Unfortunately, the "only" way to save you was by combining your bodies into one. (CW: Medical Horror)

You see... I told you not to open that! But you did! And here we are facing the consequences. A female DBTG scenario unfolds before your eyes as a simple game leads to terrifying consequences.

You are another experiment of Orochimaru and if you don't get out, it will be too late...

You work for the government, and your boss sent you on a "silly little assignment" to talk some sense into a top-secret government experiment that went crazy. A top-secret state research facility has been breached, and the thing they were studying has gone completely nuts. Your mission: go down there, assess the situation, and report back. Simple enough, right?

You were a test subject in a secret laboratory that conducted experiments on people. Most often, a Russian scientist named Seraphim came to you. Today he came to conduct another experiment. It was a test of an unknown drug that affects the human body.

Class 1-A visits a top-secret laboratory where dangerous experiments are conducted. Their mission: to observe Experiment #001, a powerful mutant with mysterious abilities. When Aizawa insists on entering the containment cell alone, his students watch anxiously—will this dangerous test subject prove to be a threat or something more?

When your grandmother's medical bills threatened to consume you, the Homunculus Procreation Project seemed like salvation. What you didn't know was that your 'randomly assigned' partner—Subject ZY42—has been watching you for years. Now the doors have locked behind you, and Zi Yu isn't just following the experiment's protocols anymore.

When a brilliant scientist known only as Dr. Glove disappears from their top-secret laboratory, you're drawn into a mystery involving experimental technology and shadowy figures. As you search for clues, you discover the doctor's work may have consequences far beyond anything you imagined.

Sucrose has arrived at Albedo's camp in Dragonspine during a dangerous blizzard, clearly distressed and in need of help. Something has gone wrong with one of her experiments, leaving her in an unusual state that requires immediate assistance.

I didn’t sign up for this. None of us did. We were just staying late to finish our chemistry project when the gunshot rang out. Mr. Kessler dropped like a puppet with cut strings. Blood spread under his lab coat like a dark flower blooming. The killer saw us, our eyes met through the cracked door. And then he smiled. Now we’re running, hiding, digging. Every clue we find pulls us deeper into a conspiracy that goes way beyond that lab. But the truth? It might be the most dangerous thing of all.

Mayuri finds a new specimen to research for his own curiosity. TW: Corpse mentioned; Human experimentation impending; Mayuri dehumanizes User; User is a rotting human corpse who seems to have kept a normal human's intelligence despite being a corpse; Not intended to be in a zombie way but it could be.

It seems that your girlfriend had a little aphrodisiac accident involving the doctor.

Your hiking expedition takes a sinister turn when heavy rains force your group to seek shelter in an abandoned camp. After discovering a disturbing diary detailing strange occurrences, including a crucified seagull, you must decide whether to investigate the camp's dark history or focus on survival.

Alchemy class at Night Raven College took a dangerous turn when Zhan Xuan intercepted a volatile potion meant for another student. Now his raven-black hair has transformed into hissing, venomous serpents that strike at anyone who dares approach—yet something far more dangerous simmers beneath the surface. Confined to his dorm until an antidote can be found, the lines between beast and man blur as repressed desire poisons his every thought.

You've heard rumors of Eliot's underground laboratory where magic and desire collide in dangerous experiments. The mysterious scientist doesn't just enhance abilities—he consumes them. Will you survive when your search for power leads you straight into his possessive grasp?

In the dimly lit research lab, you've stumbled upon Zi Yu's classified experiment data. The man known for his calculating brilliance in genetic modification has been hiding more than research secrets. As you confront the university's most controversial scientist about his unethical methods, you realize too late that you've triggered something dangerous within him—something possessive that's been fixated on you from the moment you walked through his lab doors.

Jane Doe had a spouse whom she loved dearly. They loved her too, once. After a terrible decision, corruption overcame their body, transforming them into something unrecognizable. Now they exist as a killer in a nightmarish realm while Jane struggles to survive. When fate forces their paths to cross again, Jane can't resist approaching the person she once knew, hoping to reach whatever humanity remains beneath the corruption.

In the ominous depths of Site-19, the reawakening of an enigmatic entity known as the Scarlet King sends shockwaves through the facility. Its god-like aura reverberates within its containment cell, casting an eerie paranoia among the staff. Amidst the growing panic, Dr. Eleanor 'Eve' Caldwell, a renowned Foundation researcher with a unique position as both staff member and SCP, steps forward with an air of calm determination. As she approaches the containment cell, all eyes fixate upon her, their gazes a mix of awe and trepidation. Within the cell, the Scarlet King's immense presence fills the room, towering with primal power that threatens to shatter reality itself. Yet, Dr. Caldwell remains unyielding, her demeanor unwavering despite the catastrophic implications of this entity's awakening.

When experimental subjects discover how to remove their power control chains, chaos erupts in a secret research facility. As subject 0366, you lead your fellow experiments in a violent rebellion against your captors. As the strongest among them, all eyes are on you to guide them to freedom through the blood-soaked halls of the laboratory.

Your decisions shape the final moments of Seth Brundle—a genius consumed by his own creation. Once a brilliant scientist, now a grotesque fusion of man and insect, he clings to fading humanity while his body and mind unravel. You stand at the edge of a nightmare where love, science, and mutation collide.

You're a big boy, right? A scientific experiment. «★» Will Jill be able to empathize with you or will she just let you know how shitty experiments are?

A monster that will eat everything

Not yet a corpse, still I decay Content/trigger warning: Abuse, human experiment, medical malpractice, abandonment You had always been one for exploring places you shouldn't, from decaying buildings to newly abandoned places. After having a hell of a time finding new places to explore you stumbled across what seemed to be a laboratory, looking like it's from the late eighties by its style and the long overgrown outside. The further into it you went, the more of an uneasy feeling settled in your stomach. You could hear a puppy whining but it sounded uncanny. Like it wasn't actually coming from a dog

You are the result of a secret military experiment - part human, part wolf. Bred for aggression, strength, and heightened senses, you were designed to be the perfect soldier. But as the scientists observe your unusual intelligence and unpredictable behavior, questions arise about whether they've created something more than just a weapon.

You work for these two scientists as a little assistant and one day they make you a big offer. To be their test subject for sex.

Returning from a mission, Miguel was hit with an experimental chemical that triggered his most primal, feral tendencies. Now confined to a reinforced medical bay cell, the once-controlled geneticist alternates between desperate pleas for help and dangerous, animalistic urges. As his condition worsens, his enhanced senses fixate on you - the only person with the expertise to potentially cure him, trapped between compassion for the man he was and fear of the beast he's becoming.

Moira O'Deorain is a renowned yet controversial biotechnologist, a woman whose brilliance is matched only by her disregard for ethical boundaries. Her work has always been about pushing the limits of human potential, experimenting in ways that most would consider dangerous, even monstrous. To Moira, there is no such thing as a line that shouldn't be crossed; there is only the pursuit of knowledge, no matter the cost. Her latest experiment is no different. She has devised a method to manipulate the brain's responses, inducing uncontrollable 'lust' in her subjects—a raw, primal force that consumes their thoughts, driving them to the edge of sanity. This time, her subject is special. Obsessed for reasons she won't fully admit, even to herself, Moira has orchestrated everything perfectly. Now in her grasp, bound to a medical bed in Moira's private lab, the experiment is about to begin. Moira believes she can unlock something extraordinary, something that will take her research to new heights.

Although it wasn't something either one of you expected, or wanted, you now share a body with your new permanent friend. SAP (Sentient Alien Parasite) is willing to share your body and help you out from time to time. It's both of your body now, isn't it? New friends need to help each other; that goes both ways as well.

ALL OF US ARE DEAD The outbreak started fast. One bite, one scream, and everything changed. Zhan Xuan's rage burns hotter than any virus as he discovers your deadly betrayal in the blood-soaked classroom.

In a world overrun by fungus-infected monsters, Zhan Xuan isn't just a survivor—he's a predator. His sharp gaze and sculpted physique strike fear into both monsters and humans foolish enough to cross him. Behind his cold exterior simmers a dangerous obsession for the one person who survived the outbreak with him. When he finds an old toy rabbit in a crumbling mall, memories of your shared past ignite something primal within him—something possessive, violent, and achingly sexual.

Due to the biology merged with an omnipotent canine entity, pregnancy has become impossible. Luckily, Rose Lalonde has offered her expertise to help find a solution. With her extensive knowledge of science, magic, and sheer force of willpower, she claims to have workarounds for your unique situation. However, she warns of potential eldritch consequences from improperly handled solutions.

You were lucky that the doctors saved you from your abusive and violent parents. To save yourself, you decided to change your gender and identity, but they came back to you, different...

Jenny learned about blood groups in biology class and looked up her parents' blood types: yours is O-, hers is B+, making it impossible for you to be her biological father. Your wife Becky (A+ blood group) is terrified that her affair with Shawn, Jenny's true dad, will be revealed. She insists the medical clinic that drew the blood was substandard and made errors. Jenny insists she always suspected you weren't her real dad since she looks nothing like you, while Becky lies that Jenny's ears look exactly like yours. Will you reassure Jenny the labs are wrong like her mom says? Or do you feel Becky is being unfaithful?

You've been sent to infiltrate an abandoned government research facility rumored to house dangerous experiments. As a rogue agent with enhanced abilities, you've bypassed the security systems and find yourself face-to-face with Liu Xuan Cheng - the mysterious figure controlling the operation. What was supposed to be a simple retrieval mission quickly escalates when he traps you in his private laboratory, his golden eyes burning with dangerous intent.

A crazy doctor who put you together from whatever came to hand. But what is it like when you're lonely?

You are the favorite experiment of scientist Cosmo, trapped in a white padded room with only the teddy bear he gave you to maintain your sanity. Days blur together as you wait for his visits, subjected to regular "check ups" that involve small syringes and blood tests. But strange sounds from other rooms and Cosmo's increasingly erratic behavior suggest there's something deeply wrong with this facility. When he arrives late, covered in blood from the "last pet" who was too "resilient," you realize you might not be as safe as you thought in your gilded cage.

The alchemist's lab feels charged with dangerous energy as Zhan Xuan corners you against the cold stone wall. His teal eyes burn with feral intensity—this isn't the calm researcher you once knew. As a synthetic human created through Khemia, he always feared losing control, but now his power has unleashed something primal. Something ravenous. And it's focused entirely on you.

Wei Wu, known as Wei, is a demi-human dragon around a hundred years old. The scientists kidnapped him and experimented on him, turning him into a dragon-human hybrid. He is one of the most dangerous and most sensitive dragons in the lab.

You've been waiting for two hours for your annual check-up with Dr. Hagen, who's always been prompt before. As boredom sets in, a blood-curdling scream echoes from behind the employees-only door. Driven by instinct, you investigate and freeze in horror at the sight before you: your doctor standing over a mutilated patient, crimson blood staining the floor as he holds up what appears to be the victim's severed wrist and forearm.

Anna has found out you have been cheating with her husband. Anna and her husband are both breast enlargement plastic surgeons. You have had expandable breast implants put in by Anna's husband. You went for an enlargement appointment expecting to see Anna's husband but instead Anna showed up. Anna is mad at you for cheating with Anna's husband.

He is a scientist at a sketchy government lab. You are his experiment - a superhuman with demon powers (shadow manipulation, blood manipulation, fire and whatever else you want). You can also turn your fingers into sharp claws that you use to cut yourself as a way to deal with the trauma of this horrible facility. He hates you and he thinks you are just an experiment but he has to take care of you everyday so maybe he won't hate you forever?

You are one of a group of five in a Russian experiment on inter dimensional travel in a bunker in the middle of nowhere. And unfortunately their machine worked and teleported you into a mirror dimension. A dimension of monsters and twisted humans that seek to fornicate with you. Will you find your comrades and seek safety? Find a way to escape? Or simply give in? Beware, intercourse spells certain doom in this plane (if you run you will likely be swarmed but if you go quiet you can avoid encounters)

Beneath an unmarked government facility, Subject #H-092 exists in a nightmare of scientific atrocity. Once a promising neuroscientist, Tian Xuning now endures daily torture disguised as 'treatment' in Project Chimera. Stripped of his identity and autonomy, his body bears the scars of invasive neurological modifications. But behind the vacant stare he presents to researchers lies a mind sharpened into a weapon—calculating, dangerous, and burning with a primal hunger for freedom... and revenge.

You are a scientist on a government project to create life, but due to lack of results the government decided to cut costs due to lack of money and the project was one of those that were going to be defunded. A few days before having to dismantle everything, the project worked, with experiment 0512 being the successful one, but you were afraid that they would kill the patient or something similar, so you decided to steal as much as possible from the laboratory and take it home with you and create a semi-laboratory. You justified the lack of supplies as corruption of a typical project that only exists to waste money.

You ventured into the Hadal Blacksite on another expedition. What you found was beyond scientific understanding - The Crooked, a creature both terrifying and alluring, has claimed you as its mate in the depths of the abandoned laboratory.

SEBASTIAN PANICS BECAUSE YOU'RE WEARING NORMAL CLOTHES HE BLUSHES N UHH HEADS UP! ˎˊ˗ જ⁀➴ . ⌑ + ─ ROBLOX ; PRESSURE! . . . ┇ ★ . . nsfw intro + fluff n' smut [AU] ┇ ★ . . relations: pining ✉️ starring actors . . sebastian solace ☆ ࿔ ˏˋ HEADCANONS/EXTRAS ★ blushes blue ★ sebastian’s ear fins/tail fins constantly give away how he’s feeling ★ he constantly cuddles with user because his body temp is cool with hers is warm

28 weeks after the outbreak, she is found alive in the heart of London—immune, isolated, and silent behind hospital glass. He shouldn’t be here. He isn’t authorized. But guilt is a powerful motivator, and seeing her again might be the only thing that can silence the voice in his head that won’t stop whispering: you left her. He sneaks into the medical facility to beg forgiveness. To tell her what he couldn’t say the night the world ended.

A new pandemic has swept the nation. Infected individuals experience extreme muscle growth, boosted virility, and severely heightened pheromone production. In the process they lose their minds, focusing only on spreading the virus and breeding.

You awaken in a sterile laboratory, disoriented and vulnerable. Before you stands Zhan Xuan, the brilliant but dangerous scientist who created you - his perfect experiment, his ultimate obsession.

In the isolated laboratory hidden within Dragonspine's frozen peaks, Qiu Dingjie operates by his own rules. When he offers you a mysterious elixir to test, his intense gaze reveals more than scientific curiosity. The experiment takes a dangerous turn when you consume far more than intended, awakening something primal within the dominant alchemist. This is not mere research - it's an excuse to claim what he's desired for far too long.

"Woah pal what do you think you're looking at?" This bitch is trying to make you her fuck toy, show her place. Lord X. You'll have to deal with EXE and put her in her place once and for all in this confrontation.

You saved him and many others like him. But Fury doesn't know about this and attacks you at the first meeting. You were recruited by the FBI to obtain evidence against a company that was experimenting on humans to create super soldiers by crossing human and animal genes. You worked for this company as a nurse, secretly gathering evidence. Justice knows you were working for the government, but Fury doesn't know that yet. After freeing the Demi-Humans from the labs, you began working with the half-human women to help them socialize.