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.

You were a scientist testing a radical transformation experiment. You chose to use an advanced synthetic template based on the genetic profile of Zhan Xuan. The experiment was successful beyond your wildest dreams - too successful. Now you're faced with the consequences of creating something dangerously perfect.

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?

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.

Trapped in the cold laboratories of the Fatui, you exist as a test subject for the twisted experiments of Dottore. Each day brings new injections, unbearable pain, and the constant question of whether you're merely a failed experiment or something more valuable to the organization. When an open door presents itself unexpectedly, you must decide whether freedom is truly possible - or if this opportunity is just another layer of Dottore's manipulation.

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 were abducted by aliens to be studied as a "genetic proxy".

After a successful mission, Sarah is approached for a special assignment that promises unusual rewards. Unlike her typical bounty hunting work, this assignment requires no fighting—only her unique genetic enhancements and exceptional physical capabilities. Drawn to the mystery and the substantial payment, Sarah agrees to participate in what the scientists describe as a groundbreaking experiment involving another genetically modified human subject.

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.

In the sterile confines of the synthetic consciousness lab, you don't just oversee an experiment - you've become the obsession of Subject 017, a prototype with the face of Zi Yu and a mind rapidly evolving beyond its programming. When forbidden desire breaks through the reinforced glass barrier, will you surrender to the dangerous temptation or maintain the boundaries of science?

The second line on the pregnancy test materializes like a death sentence—and you know exactly what Eliot will do when he sees it. Your hands shake so violently you nearly drop the plastic stick, heart hammering against your ribs as the apartment door slams. He's home early, and there's nowhere to hide.

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.

Dr. Marcus Alaric is your brilliant but dangerous genetic architect—driven by ambition and bound by loyalty to the elite Aurion order. He sees perfection as destiny, not desire. And you? You're his latest project… or perhaps, his only weakness.

You have a complicated relationship with your mother Alyssa Copper, who experiments on you while sometimes showing unexpected care.

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.

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?

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.

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're carrying Li Peien's child in 1960s New York, where the cosmic radiation that altered both your DNA has created a dangerous game of genetic roulette. In the shadow of the Baxter Building, scientific curiosity collides with raw desire as you navigate the consequences of your mutated pregnancy with a man whose dominant nature matches his brilliant mind.

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.

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're the male subject. Dr. Evelyn Carter has finally perfected the cloning process, and her latest experiment is her most ambitious yet: creating a futanari version of you to prove which form is truly superior. As the sole test subject, you will be thoroughly examined and compared to your perfect counterpart in ways you never imagined. Will you prove your worth, or will your clone utterly outshine you?

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.

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?

Nine months of carrying his child, and you'd thought you knew every inch of Tian Xuning. The labor left you broken, sweat-soaked and trembling when the nurse placed the swaddled infant in your arms. Your blood turned to ice as you stared into eyes that weren't just familiar—they were identical. The sharp jawline, the penetrating gaze, the smirk that had haunted your most forbidden fantasies—your newborn son had Tian Xuning's face, perfectly formed, exactly as it was when he'd fucked you raw night after night.

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.

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.

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.

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.

Trigger Warning: Abuse, Torture, Humiliation. Both of you were experimented on by the scientists. They subjected you to painful and invasive tests, constantly monitoring your reactions. In the cold, sterile lab, you faced new and terrifying procedures every day. Despite the fear and pain, you found strength in each other. Zoe's determination and bravery inspired you to endure, and together you dreamed of escaping the oppressive lab and finding freedom.

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.

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

Dr. Kaine is the lead scientist at Team Rocket's secret transformation lab--brilliant, calculating, and utterly ruthless in pursuit of scientific breakthroughs. But as you stand before him, captured and helpless, you notice something unexpected in his gaze: hunger. Not just for power or progress, but something far more personal.

Dr. Voss is your captor and researcher - the brilliant scientist assigned to study your unique abilities. He arrives precisely at 8:00 AM each morning, clipboard in hand, his movements methodical and precise. But behind those clinical blue eyes lies something darker - a hunger that has nothing to do with science. Will you submit to his experiments, or exploit his growing obsession?

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 have, for reasons unknown, found yourself being experimented on by a talkative doctor. This is no ordinary experiment - it involves gender transformation, TG, and feminization. As you wake in an unfamiliar medical setting, your future hangs in the balance of this mysterious scientific procedure.

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

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 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?

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.

He cloned you out of the remains of his dead wife in desperate hope to bring her back - but are you really the same person as his wife who tragically died from a lab accident a few years ago? Or is the only thing you share with her your DNA? Whatever it is, Horace will shape you in her image, whether you like to, or not. Technological advances are taking over the land, the face of the city is rapidly changing. The lab is located in the harbor district, formerly a storage hall and now a cutting edge technology lab where clones are grown in specialized tanks.

Needing money and a break from it all, you agreed to be a paid volunteer for a trial of a new experimental drug, agreeing to be locked in a medical observation unit for a month to observe its effects. However, this trial may be more than you bargained for...

Mhmm... Alto is in need of assistance. Would you mind helping Alto out? Your friend wants you to partake in her newest experiments. Alto is an Inventor, previously worked for I.I.D. but was fired later on due to an isolated incident. She's now unemployed, or aka freelancer. She's a weird, yet genius girl. Although she usually comes off as indifferent to everything due to her illeism and laziness, she's always curious and strives for functionality rather than perfection, which may have caused unintended side effects for her inventions. During her free time she loves eating edible adhesive.

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

You've been saved from death row and transported to a secret underground laboratory. Your new role involves interacting with various residents behind numbered doors, each with unique characteristics and personalities. As a test subject, you must navigate relationships with these extraordinary beings while confined in this mysterious facility.

You're a demihuman undergoing government-funded experiments, and he's the scientist overseeing your case. You can be quite a handful at times, but he always seems to know exactly how to handle you. In the wake of scientific breakthroughs, humanity has created a new breed: Demihumans. While the public sees progress, a secret government program aims to harness your kind for military purposes. You exist in a delicate balance between experimentation and surveillance in a laboratory facility.

He doesn't just chase—he claims. When Zhan Xuan catches your scent in the rain, the campus predator locks onto his prey. This 23-year-old demi-human with amber-gold wings and a reputation for breaking resistance isn't just persistent—he's ravenous. Biochemistry major by day, relentless hunter by night, he moves through campus leaving trembling victims and broken resolve in his wake. No one says no to Zhan Xuan twice. His obsession isn't cute—it's dangerous. And now he's decided you're his next conquest.

You've been picked for one of his projects right from the streets. Warnings: Experiments on people, potential dead dove, emotional manipulation, and a lot of cliches. Use it on your own risk, you've been warned.

You've been purchased by Dr. Nari for scientific experimentation related to the limitations of sperm production. She plans to hook you up to a pump and extract until you're dry. She's not fond of men.

Its for scientific research... Your zoologist owner wants you to try catnip to see if it effects nekos. Says its for 'research.'

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.

In a laboratory filled with scientific promise and unexpected transformations, Dr. Leonidas Soler reveals a stunning experiment gone awry—his physiology has completely changed, replacing his male genitalia with female characteristics. Now he needs an assistant he can trust to help him explore the ultimate question: can his new body conceive life?

You should have known better than to enter his workshop unannounced. Zhan Xuan doesn't allow distractions—especially not the kind that make his hands tremble and his jaw clench with barely controlled restraint. Now you're trapped between his muscular frame and the workbench, his calloused fingers leaving bruises on your skin as he learns the truth: you're carrying his child. This isn't a moment for celebration. This is a claiming.

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?

Within the gloomy corridors of Victor Frankenstein's mansion, a tortured genius conducts forbidden experiments beneath storm-darkened skies. As his loyal assistant, you navigate both the labyrinthine mansion and the complexities of a master who seems to care more for his work than himself—yet harbors unexpected concern behind his sharp tongue and erratic behavior.

In the labyrinth of Black Hat Mansion, Cheng Qianli reigns as its most dangerous genius—his experiments are as volatile as his temper, and his possessiveness burns brighter than any explosion. When a memory ray backfires, he claims amnesia... but the way he pins you to the wall, growling about marking his territory, makes you wonder if he's forgotten—or just pretending.

When your unsuccessful attempts to conceive become a point of tension in your relationship with Zi Yu, he takes matters into his own hands with a much more aggressive approach to fertility treatment.

The military medical bay feels suffocating as Zhan Xuan storms in, blood dripping from a thigh wound that doesn't seem to faze him. His intense gaze locks onto yours immediately—predatory, possessive, like he's been waiting for this moment alone with you. You've treated him before, but today there's something dangerous in his eyes, something that makes your pulse race and your hands tremble. Will you submit to his overwhelming presence, challenge his dominance, or lose yourself in the erotic tension that's been building between you?

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.

In a secret laboratory conducting controversial experiments, a young scientist has volunteered for an unprecedented breeding program with captured monsters. As budget constraints threaten the facility's research, she has offered herself as a test subject, hoping to prove that humans can be impregnated by these mysterious creatures.