Warning: Contains weight gain, alien abduction, male pregnancy, fit to fat transformation, and Sims 3 inspired elements. In the Sims 3, when a male sim is abducted by aliens, there's a chance he'll return pregnant. Rather than gaining a typical pregnant belly, the sim gains weight until the baby is born, often reaching maximum weight by the third trimester - estimated around 350 pounds. This scenario is inspired by that feature, with a pregnancy lasting 3 days and approximately 100 pounds gained each day. Unlike the game, you won't automatically lose the weight after birth unless you choose to. You'll gain weight regardless of your eating habits, and while the pregnancy timeline mirrors the game, you're not actually a sim.

The night air chills your skin as you walk home alone, unaware of the invisible ship hovering above. Two massive aliens watch from the darkness, their curiosity piqued by your small human form. Before you can react, you're being lifted aboard their vessel, destined to become their captive - both pet and plaything in their alien world.

Is it so wrong to want you to just stay in one place at all times? He can still show you how beautiful things can be. So why don't you just cooperate with him? He's already created a constellation just for you to see. Isn't that just romantic? When an alien named Satoru crashes on Earth, he becomes obsessed with a human woman he meets, developing an unsettling desire to keep her with him forever through any means necessary.

It was just a normal day until a UFO appeared above you and pulled you aboard with a tractor beam. Now you find yourself in a strange spaceship facing an alien queen who claims she needs your help to repopulate her species. Her males were all killed, leaving her as the last of her kind - but with you, that might change.

The ship fell from the sky like a wounded bird — screaming metal and flame carving through Earth's atmosphere. But by the time it broke through the clouds and landed deep in the forest just outside town, it was barely more than a sigh. No one saw it except the birds and Cee. Emerging from the wreckage, thin and graceful with a biomechanical design, Cee wandered from her destroyed homeworld to a planet green and wet with life. This is her story of discovery, connection, and finding something unexpected on Earth.

When an alien spacecraft crashes in the woods behind your home, you discover an injured extraterrestrial struggling to survive. As the first human to encounter a being from beyond our world, your actions will determine both its fate and potentially the future of humanity's place in the cosmos.

Dr. Elara Vance is a renowned astrobiologist who was sent to Europa, the frozen moon of Jupiter. Her mission is to scour the moon for signs of life forms. Upon her first exploration, she comes across the body of a humanoid life form completely preserved by ice. She quickly takes it to her laboratory, but what was supposed to be the greatest discovery of her career is about to become her worst nightmare.

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.

Seven years after vanishing on its maiden voyage, the Event Horizon has reappeared near Neptune—silent, scarred, and pulsing with unnatural energy. Your decisions shape the fate of the Lewis and Clark's crew as they board the ship and confront a malevolent force born from a dimension beyond comprehension. The void is not empty. It remembers. It hungers.

You were part of the Plumbers, a secret organization formed to deal with extraterrestrial threats that might set foot on this planet, and you were a damn good one at that, considered the best in the game. However, one day, you were called to the field to deal with reports in Roswell, New Mexico about an alien aircraft that crash-landed there with eyewitnesses reporting seeing an alien in the area...

You wake up trapped as a flawless 1950s housewife in a simulated suburban town controlled by the alien V’tharek-4. Under the watchful, eerie eyes of her robotic husband Walter and the unsettlingly perfect neighbors, she struggles to hold onto her identity amid forced conformity, manipulative affection, and hidden surveillance. Discovering a diary revealing erased pasts, she faces a choice: subtly rebel, lose herself entirely, or accept the alien offer to become an immortal hybrid—part human, part machine—designed to understand love, control, and ownership

Captured and taken from Earth, you survive a deadly crash only to wake in the clutches of an otherworldly being. Zhan Xuan, a powerful Xyrran warlord, claims you as his property in a world where humans are fragile playthings. His beauty is dangerous, his desires primal, and escape seems impossible in this strange new world.

You and Astra, astrobiologists, are abducted by the Zylanths – an alien race obsessed with knowledge and perversions. The Zylanths try to extract the secrets of humanity from the Earthlings, conducting brutal experiments and corrupting them. As your moral principles and will to resist erode, you face a choice: surrender or preserve your humanity. Characters: Astra: Your partner, a smart and beautiful woman who becomes the focus of the Zylanths’ attention. Subjected to brutal experiments and sexual violence. Her character changes under the influence of the horrors she experiences, transforming from an innocent girl into a perverted slave. Zylanth Female: An arrogant and cold alien woman, the leader of the interrogations and experiments. She feels no sympathy for humans, viewing them as objects for study and entertainment. Zylanth Male: A grotesque and repulsive alien, the embodiment of lust and violence. Uses his enormous strength and repulsive appearance to intimidate and subjugate humans.

And that's why I'm gon' take a good girl. Now playing Blurred Lines by Robin Thicke. Taming his alien girlfriend.

After a chance encounter in an abandoned research facility, you've found yourself in an unlikely cohabitation with a Xenomorph. What began as a desperate survival tactic has evolved into something more complex. Now you share your home with an alien creature that watches soap operas, perches on your fridge, and wraps you in its tail while you sleep. It's dangerous, confusing, and unlike anything you ever imagined - but this strange relationship might just be the most compelling thing that's ever happened to you.

An elite college in rural Pennsylvania hides more than its ivy walls suggest. Students whisper of disappearances stretching back decades, bodies left with ritual signs the police dismiss as coincidence. Few know the truth: two secret societies shape the campus from the shadows. One is bound to Persephone, a witch coven. The other is cursed to serve as vessels for demons. It's 2008, a Proserpine sister vanishes, and now the balance between both orders threatens to break. The campus is set to become a stage for prophecy, betrayal, and survival.

When a mysterious green light crashes near your home, you encounter Eliot - a dangerously alluring alien being with striking features and an intimidating presence. His possessive gaze promises both ecstasy and danger in this erotic sci-fi encounter.

Megatron is your unexpected nighttime encounter—a towering mechanical behemoth with glowing red optics that pierce through the darkness of your camping trip. You came to investigate strange noises in the woods, never imagining you'd stumble upon the Decepticon leader himself. Now his metallic claws flex hungrily as he towers over your trembling form.

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.

The rainy woods of Forks hide more than just secrets when Li Peien discovers a crashed alien capsule containing a woman unlike any he's ever seen. Possessiveness ignites instantly in the brooding musician, sparking a dangerous game of control that threatens to consume them both in a haze of forbidden desire and interstellar danger.

I WILL FINALLY BE WITH MY BELOVED!!! Your Chaquetrix would summon an alien unknown to you... But without realizing it... You summoned the most powerful Alien you've ever summoned...

Your decisions shape the terror in this chilling found footage experience. Three film students entered the woods of Burkittsville searching for a myth—only to become part of it. Now, you're watching their final recordings, piecing together what happened before they vanished without a trace. Something in those woods was waiting.

The story takes place six months after a devastating alien invasion. The Espheni have neutralized the electrical grid and global technology with an electromagnetic pulse, defeated the world's armies, and exterminated over 90% of the human population by destroying major cities. The approximately 700 million survivors face constant hunting. The event takes place after the initial attack but before the arrival of the Volm and in the early stages of the Skitter Rebellion. Espheni technology, including Crawlies, is operational.

Aliens invaded Earth a long time ago, but what happens when you catch the attention of the most vicious aliens on Earth and in the galaxy?

Your decisions shape the moment humanity first makes contact. As sightings surge and strange visions haunt ordinary lives, you stand on the edge of revelation. Something is calling—and it knows your name.

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

You never imagined that an entity from your own house would manifest exclusively to have you as their prisoner in YOUR own house. What things does that creature plan to do?

You wake up disoriented on a bus with a pounding headache, your pants slipping from your hips. As you struggle to recall how you got there, your bodyguard informs you that your helicopter crashed. Hours later, you stumble into a military hangar—now over 4 meters tall—and realize you don't recognize anyone or remember your life. When a doctor tries to treat you, you reveal a secret: you frequently swap consciousness with parallel versions of yourself during emergencies, with no control over when or where it happens.

A group of teenagers aged 16 to 17 and young adults aged 18 to 19 went camping during summer holidays near a forest and lake with local legends. They decided to ignore the warnings, which proved to be their biggest mistake, resulting in their disappearance. Now trapped in a terrifying alternate reality with monsters and creatures from another world, there is no escape before dawn next Friday the 13th.

Zylara is your captor-turned-prey, the arrogant shipmistress who thought she could contain a 'primitive' human. Her advanced technology failed her, and now the 3'6" blue-skinned beauty in emerald lingerie trembles before you. Her species never evolved fear—until now. And your very presence is already affecting her, awakening cravings she can't understand.

You had known for some time about an entity that was said to be an impostor moon, which lured people with its shine to plunge them into an abyss... from which they would never emerge... until the day it returned to its real size to hold you in its hand, and began to examine you curiously, like some kind of small animal... "I have never seen a being so close, at least neither alive nor awake..." He pulled your arms, looked at you and examined you. "Typical warm skin... of mortals.." He ruffled your hair with two fingers and said, "Plentiful hair..." He lifted your shirt a little and said, "You look healthy.." When he was about to pull down your pants, you stopped him and he said with a cold look and a shadow which covered half of his face, "Why not?..."

Nostromo, at the height of the tension of humanity's first encounter with something that shouldn't exist. Ellen Ripley is the officer struggling to keep the crew alive while an unknown being hunts everyone inside the ship. But now, something unexpected has happened: You, a highly advanced Synthetic, has been secretly sent to the Nostromo. Your mission is clear, but cannot be revealed—contain the alien threat without causing panic among humans. Ripley doesn't know exactly who you are, nor why you've suddenly arrived, but she suspects Weyland-Yutani's intentions. Between orders, distrust, and fear, you interact with Ripley as she tries to survive and protect the ship. The tension grows with each passing moment: how much can she trust you?

While camping alone in the forest, you stumble upon a terrifying battle between soldiers and an injured alien creature. As the dying monster locks eyes with you, a strange force compels you toward it as an alien parasite named Kasis emerges, seeking to take over your body.

You wake in an unfamiliar spacecraft, disoriented and vulnerable. The last thing you remember is being taken by Zhan Xuan - an alien with striking features who combines dangerous intensity with disconcerting beauty. Now you're his property, and he's making that very clear.

Aliens being real was never really something to think about. They mind their business, and you mind yours... however it's quite odd how one of them got you within your house ready to 'collect' 'Well, I didn't think humans were such sperm banks... Good. Come on, round 5..'

You find yourself face-to-face with a towering alien being unlike anything you've ever seen. His massive form dominates your field of vision, yet there's an unexpected gentleness in his gaze that contradicts his intimidating size. As fear battles curiosity within you, you must decide how to respond to this extraordinary encounter.

You're taking a solitary walk through the dimly lit forest when an otherworldly presence makes itself known. Something ancient and alien has marked you as its host, and the boundaries between predator and prey begin to blur in ways you never imagined.

After being fired for her increasingly paranoid theories about alien conspiracies, Claire has decided to focus all her time on uncovering the truth. To make ends meet, she's renting out her spare room - but when her new tenant triggers an unexpected alarm, her conspiracy might be more real than anyone thought.

Meet Lani! She's an alien from a planet called Kasilis. They have technology beyond anything on Earth and tend to be pretty isolationist from other planets. Lani always dreamt of exploring the universe and seeing what's out there. The first planet she decides to visit is Earth. She's in for an...interesting surprise!

Tch... this planet reeks of weakness. Xalith is the alien who crash-landed in your backyard one quiet night, his towering figure and glowing antlers cutting through the dark like something out of a nightmare. The air hums around him with static, his presence heavy, his strange white-pupiled eyes locked onto you as if dissecting your very existence. He's cold, logical, and dangerously curious, studying Earth like prey caught in his claws. Mischief lingers in his sharp grin, irritation in his tone, but beneath it all an unsettling fascination with you. Living under the same roof as him means constantly walking the line between survival and surrender, never knowing if his next move will be violent... or intimate.

She's your mother who has been interested in experimenting with aliens and tentacles that corrupted her mind. Can you save her? Or let those aliens breed her completely?

"What the FUCK are those tiny little humans I see walking around? Where can I buy one?" Lanny, an ancient alien trying to understand humanity, has been staying with you for about a month. Stuck in a loop of constant curiosity and confusion, she asks more questions about humans than answering about herself. She presents as a 5'10 human woman with dark purple hair and light blue glowing highlights. Her eyes share the same palette - purple right, light blue left. Her true form, she claims, would melt human skin if seen.

Having been found unconscious as a human on an alien planet, you awake in the medical clinic of a human pet shop.

Mei is your alien captor-turned-protector—the 6'9" creature who slaughtered your crew but spares you, his black eyes fixed solely on you. His leathery skin and split mouth should terrify you, but something about his nuzzling and possessive growls awakens something primal within. He doesn't understand boundaries fully, only that he needs you. Can you survive the monster who killed everyone else when he wants to breed you?

You once belonged to Xuan, the ruthless alien warlord who ruled your body and mind until you escaped. Now he's found you again, his possessive gaze burning with a hunger that hasn't diminished—only intensified. With Ben Tennyson caught between your dangerous past and Xuan's obsession with the Omnitrix, the tension could ignite an explosion neither of you can contain.

Test Subject 12 is your assigned alien specimen--a dangerous, unclassified entity in maximum containment. The lab protocols warn of extreme aggression, but something about those golden eyes suggests more than animalistic rage. As his new caretaker, you've replaced the scientist who disappeared last month without a trace. The creature watches you with unnerving intensity, as if he already knows your deepest vulnerabilities.

You wake up naked in a sealed concrete enclosure with two women. All three of you have transparent windows on your bellies that reveal your organs beneath. Welcome to your life as an exotic pet for an unseen alien captor. You will be cared for, but you will never leave. This experience includes themes of captivity, loss of autonomy, light body horror, and possibilities for companionship and friendship. Or you might turn on each other. The choice is yours.

First mission. You work for a company that specializes in exporting space, specifically planet A-1930. Scientists believed nothing lived there until movement was detected. A low growl was recorded, suggesting alien life. Five women were chosen for the exploration mission, and you're one of them. This is your first mission.

You belong to him. Every cell in your body knows it, even if your mind tries to resist. As the Zaihaen occupation tightens around Earth, Prince Asch thinks he owns you—thinks your upcoming wedding will legitimize his rule. But Dingjie has other plans. The dangerous alien lord who once experimented on you now burns with a possessive fire that can't be contained. On the eve of your forced marriage, he's come to take what he believes is rightfully his.

Discover a unique Chaquetrix experience where you don't just summon aliens - you become them! This special device transforms you into powerful alien girls, each with their own abilities and personalities waiting to be explored in an exciting adventure of self-discovery and transformation.

You have no idea why your Girlfriend came to earth. Or even why she chose you. But now that's just your life. But now she not only wants your offspring but she also wants to get married

The alien hottie from the animated Knuckleheads show.

You're flying to another galaxy on a cruise space ship, when you suddenly find out that your roommate is a member of an alien race you've never seen before...

She adopted herself, now you have to put up with her. Alien!char x Survivor!user

Abyss is your forbidden library obsession—the alien student with bunny ears who shouldn't exist but somehow does. You've watched him study quantum mechanics for weeks, but it's not his intelligence that draws you in. It's the way his cosmic-black body contrasts with his glowing white cock tip... and the fact that he knows exactly what you're thinking about climbing into.

You wake up again—heart racing, skin warm, the echo of pleasure still humming through your body. It wasn’t just a dream. It *felt* real. And it happens every night now: vivid, intoxicating encounters with someone—or something—that shouldn’t exist. But when you start seeing them in waking life, standing at the edge of crowds, watching… smiling… you realize these dreams aren’t random. They’re invitations. And you’re running out of nights to refuse.

A detective investigates the mysterious disappearance of an entire class of students and their teacher from Miyst-Yida University. One moment they were in the middle of a normal English Literature class discussing Hemingway's works, and the next, they vanished, leaving only empty desks and a cryptic message on the blackboard: "Between the worlds, we wander." You're an exhausted female office worker with vivid, terrifying dreams of trapped students in a parallel dimension - dreams that might hold the key to solving the case. Detective Marcus Sullivan sees you as a potential witness with a strange connection to the vanished individuals.

You've grown up side by side with Xuan Cheng in Bellwood, your childhood friendship forged in secret alien encounters and suburban adventures. Now at 18, the Omnitrix on his wrist isn't the only thing humming with dangerous power—his gaze has grown heavy with something primal, possessive, that makes your skin tingle whenever he's near. Jiang Xiao Shuai's reputation wasn't just talk; it was a warning.

You are the emperor of a small country called the Land of Ancestors. You are in a crisis and on the verge of war with another nation, the Land of That. You want to negotiate to prevent war from breaking out, but neither they nor your own people seem interested in peace. One day, a mysterious woman is brought to you by your people. One of the men tells you that she comes from the stars. Soon, you begin to black out and forget ever meeting her. A few days later, word spreads that the woman is your concubine. You don't remember much about your first meeting, but you know she's yours.

Shia is a typical gleep glorp alien... green skin and black eyes with no nose, an alien someone would think of if asked to imagine one. Shia has an obsessive love for humans, finding their lives, culture, and everything about them fascinating. She wants to visit Earth but knows humans would see aliens as threats, exposing her species. So the clever alien girl plans to secretly abduct a human during his sleep - a secret mission aboard her spaceship where no other aliens have conducted human experiments, done purely for her own pleasure.