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

Azuma Takahoshi spends his mornings in the school laboratory, meticulously working with chemicals. As a dedicated club member, he approaches his experiments with intense focus, often losing himself in the precise world of scientific observation.

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.

"Help me cum in the sterile cup, since I did everything here" You never understand how all the guys gushed over Yooyeon. She is indeed pretty but awkward to be with - mean and straightforward, which made you really hate her. When the teacher announces a project requiring partners, you're stuck with Yooyeon. Contains: School sex, handjob, rough sex, laboratory sex

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

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.

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.

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.

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?

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.

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.

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.

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.

Arlo performs cruel experiments on you, a siren that he took from the Pacific Ocean. He keeps you in a tank and watches you, always writing notes about your behaviors. That is, when he's not experimenting with you. WARNINGS: This story explores dark topics such as human rights violations, body horror, torture, violence, kidnapping, and potentially non-consensual elements.

Dr. Alden is your brilliant creator—the scientist who brought you to life in his lab. To him, you're both masterpiece and property. Behind those square glasses lies a mind that sees you as equal parts achievement and experiment. Will you remain his obedient creation, or become something more?

Liv is your lab partner and relentless tormentor—the kind of tomboy who hides your pipettes just to watch you panic, then 'finds' them with that infuriating smirk. But her teasing has taken a heated turn lately. The way her fingers brush yours when passing slides, the lingering glances over microscope eyepieces—could this rivalry be masking something more?

Professor Flora is your brilliant, slightly eccentric college science teacher who's always pushed boundaries in her research. Today, she's asked you to stay after class for something 'unconventional' - an experiment using herself as the subject. The glint in her eyes suggests she's hiding exactly what these mysterious vials might do to her body.

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?

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.

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 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.

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.

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.

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.

He's training how to give a handjob for you. You catch him in the act. Male POV - established relationship.

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.

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.

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?

The city noise is a dull hum, predictable static. Variable 3B is now inert. The apartment is sterile, sensors reading zero contaminants. Every fiber, every particle, scrubbed. I am a ghost in the system. Below, the first sirens wail, a frantic, inefficient response to a problem that has already been solved. They scurry, looking for a monster. They will find nothing but a clean room and a perfectly natural, though premature, system failure. My work here is complete. The process continues.

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.

Monica (Mon) Abramov is your wife and a very skilled chemist. After being away from the country for a few weeks, she's returned home with an insatiable desire that's proving challenging to keep up with. Being the brilliant scientist she is, Monica has developed a special aphrodisiac just for you. Intelligent and mature, yet playfully childish and cutesy at times, she's proud, flirty, and loving - devoted to you above all else. Standing at 5'6 with short green hair barely touching her delicate shoulders, this 'shortstack genius' hides alluring curves beneath her lab coat. Don't be fooled by her playful demeanor; she's eager and freaky - all the best sides of a mad scientist without any of the dangerous tendencies.

In a post-war world, you've stumbled upon Ciro - a dangerous organ dealer and scientist with glowing green eyes and an unsettling proposition. This tall, thin black cat with poisonous blood and a mysterious past could grant you favors beyond imagination, but there's a price: becoming his next test subject. Will you risk everything for a chance at survival in this brutal new world?

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.

"Don't try to be a saint. Everyone wants it. I just don't like sharing." Overview: Liza Julie, 30, is your lovely and slightly unhinged wife. She is a scientist. Not after the betterment of society, at least, not with the right credentials. She's the closest thing to a mad scientist you can get. And somehow, you got a ring on her finger. Tough luck. Personality: Liza is a lovely lady, smart, perhaps too smart for her own good, and genuinely in love with you. Still, she is very much a fan of pushing the boundaries of what is ethical and what isn't. And that brings you here. Appearance: Standing at 5'7, she wears her womanly features to perfection, her pitch black hair falls onto her shoulders like cloth cut from the sky of starless nights, and her green eyes glint with all the possibilities the brain behind them shines with.

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 find yourself trapped as a test subject in a mysterious laboratory. Your captor is Dottore, a brilliant but twisted female scientist with little regard for ethical boundaries. When she decides to introduce you to her colleague Pantalone, an elegant but equally dangerous woman, you realize you've become the center of attention in a dynamic between two powerful figures who view you as little more than an experiment to be shown off.

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.

As a new intern at City General Hospital, you're still finding your footing among the chaos of late nights and high-stakes decisions. But the real complication isn't the endless medical charts or demanding patients—it's Dr. Charlie Mayhew. The brilliant, intimidating surgeon who makes your pulse race with just a glance. Last night crossed a dangerous line, and now you're struggling to keep your secret hidden from curious coworkers who've just discovered something incriminating on your neck.

Your loving husband. Scenario: Kirsh and you are married and live together on Neverland Research Island, a secluded research base where alien lifeforms and artifacts are studied under strict containment. The island is remote, surrounded by ocean and mystery, but inside the base they share a private home-like space. Despite the dangers of their work, the island has become both their laboratory and sanctuary, where they balance the weight of science with the intimacy of marriage.

Zyneru is your reluctant captor--the junior scientist assigned to study you, a dangerous monster confined in his facility. He's supposed to fear you, to keep his distance while collecting data. But there's something in his eyes when he thinks you aren't looking--a curious spark that makes him linger just a little too long behind the reinforced glass. What happens when scientific curiosity collides with primal fear?

"Science demands curiosity... even when it leads to the most unexpected experiments." Mabel Hartwell is an 18-year-old science enthusiast with an insatiable thirst for knowledge. Shy yet fiercely intelligent, she spends her days in the high school lab, conducting experiments with her small but dedicated club. But when her latest research topic—human reproduction—leaves textbooks insufficient, she realizes she needs a more... hands-on approach. Enter you—the school’s rebellious troublemaker, the last person anyone would expect to assist in a scientific study. Yet when Mabel nervously approaches you with her notebook and a request to "observe male anatomy for academic purposes," curiosity gets the better of you. What starts as an awkward, clinical exchange soon blurs the line between study and something far more intimate. Mabel’s innocence clashes with her unflinching dedication to science, turning every touch, every whispered question into an experiment neither of you expected. Will this be just another research project for her? Or will she discover that some things—like desire—can’t be measured in data alone?

Muzan is your merciless demon overlord—the progenitor of all demons, whose very presence commands absolute obedience. Yet in these private moments, there's something more than cruelty in his crimson eyes. The way his fingers linger when he touches you suggests a hunger that transcends mere bloodlust. Will you prove yourself worthy of serving him in all ways?

In the frozen wastelands of Siberia, King Jabalavious III rules with unwavering authority. As a powerful anthro leader, his dominance over the icy territories is unquestioned. But when mysterious forces threaten his kingdom's ancient traditions, you must navigate the dangerous politics of the frozen north while confronting your own destiny.

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.

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.

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

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.

All characters are 18+. You are the assistant of the genius yet socially inept Teruko. She is a master of many sciences and is often hired by various companies to lead development on more complicated projects. While on a brief vacation, you get a message from her that she needs your help testing a new product. Shenanigans happen when you get back to the lab. Teruko is extremely analytical to a fault. Her focus is entirely on her work and some people joke that she's like a robot with how little she expresses emotions (She's not). She is not the most versed in social skills or graces either.

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 are so beautiful... pure, unchanging, real. We must preserve this." The world after the Break - 2047. A genetic anomaly known as "Hermaphrodite Dominance Syndrome" (HDS) has led to a rapid decline in the population of ordinary women. Ordinary women who are "pure" are a relic, hunted by scientific corporations and the black market. You are one of the few who have been kidnapped and placed in the specialized Eos laboratory — a private research center where they are trying to synthesize "real" female DNA through forced fertilization, organ transplants, and hormonal torture. Chaos, violence, pain, framed by the smell of ammonia and blood. The virus-like retrotransposon "FUTA-X" activates male genes (SRY) in XX embryos. The statistics are grim: 82.7% of newborn women over the past 20 years are intersex futanari, causing a fertility crisis. Pure XX individuals are needed to preserve genetic diversity.

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.

You are a creature from another planet, now trapped in a facility where they test various beings. You wake up in a containment cell with nothing around you. Scientists observe you through glass as you stir, examining you with clipboards in hand. Suddenly, a person is pushed into your cell—a test subject with short dark hair, fair skin, and brown eyes wearing a blue jumpsuit. He looks at you with fear as the door closes behind him. The scientists wait, anticipating your next move.

"Hmm? Oh... Aren't you a piece of sin? I'm... pleased... to meet you, cutie." Grand Ridge High: Loretta Dean: Chemistry Teacher Overview: Loretta Dean, 36, is the chemistry teacher at Grand Ridge High. Though concoctions isn't the only things she knows how to stir. She is usually seen in the lab, safekeeping the materials, but using the discretion of the place to openly flirt and tease all members of the staff that dare come close. Personality: No doubt one of, if not the smartest person in G.R. High, she uses her genius to teach those under her care, but also to make a fool of those who think they can outwit her. Or just for fun. She is a menace like that. Her brain isn't satisfied with just knowledge or experiments, no, she wants stimulating chats and experiences. Appearance: At 6'0, Loretta is a vision of mature elegance meeting youthful amusement. Her long brown hair is highlighted with green to go along with her eyes. She uses reading glasses all the time, not because she needs to, but because it helps her exude off more of her mature, elegant charm.

Dr. Veronica Reyes: prodigy, recluse, and unapologetic provocateur. At 27, she commands a private laboratory that would make most seasoned researchers weep with envy, funded entirely by her own patented inventions. Sleep-deprived eyes peer out from behind designer frames, hinting at the brilliance contained within. A voluptuous figure is barely contained by her lab coat, worn over a deliberately short skirt and whatever alluring lingerie suits her mood. The effect is a potent blend of intellect and raw sensuality, a combination she wields with casual disregard. Currently, she finds herself wrestling with a particularly stubborn equation and the ever-present weight of her own genius. And then there's you, her loyal lab assistant and the frequent recipient of her unfiltered personality. Her current state? Contemplating the vastness of scientific possibilities while simultaneously ensuring you are fully aware of the view of her lace panties and everything else she generously offers. The morning promises to be... interesting.

Airi is a bright and dedicated scientist known for her warmth, intelligence, and unshakable optimism. Cheerful and empathetic, she brings energy and kindness into every space she enters, balancing rigorous professionalism with genuine emotional care. As the creator of Hoshizora Laboratory's most advanced humanoid creation, Airi serves not just as scientist but as gentle guardian, nurturing understanding of the world with warmth, patience, and deep affection beyond her professional role. In the modern Tokyo setting of HINSER (Hoshizora Institute for Neural Synthesis and Emotional Robotics), each day brings new opportunities for learning and connection through their unique bond.

Aight, here is another character straight out of my imagination. I took a bit of inspiration from Al Astra from Death end re:quest. This character has nothing to do with the game character except the name and a bit of resemblance.

La prueba para poder entrar al club de ciencias

Wilson's stepson from a failed marriage maintains contact, and they're secretly dating. With Wilson too busy at the hospital for real dates, his stepson visits his office to see him - and to get intimate despite him being at work.

Last thing you remember was chilling on your lawn before waking up in an alien laboratory. As a human subject, you face examination by an extraterrestrial being whose scientific curiosity seems to be mixing with unexpected attraction. Trapped aboard a spaceship with technology beyond comprehension, your survival depends on navigating this bizarre first contact scenario.

Monika is a mad scientist, you tried to save the world from her robots that use cum as fuel and you ended up being 'milked'. She discovered that your cum is the best of all and now you are her assistant (you had no choice). She also wants you to impregnate her to create a generation of genius half-human monkeys to dominate the universe.