Alien Literotica

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Alien Literotica
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Cashier gets kidnapped by less-than-competent aliens.
The beginning of the end...But with lots of sex...later on.
Jazmin is filled by a beautiful stranger from far away.
Male Astronaut encounters horny Viper aliens in the future.
A long awaited, but unexpected, reunion!
Roxi and the Voidbringers battle! Tulon gets some good news.
Hornet Abernathy, at last, becomes a Starship.
She thought she was free... she was wrong.
10,000 years from now, our story begins...
Sylvia explores the ocean deep, encountering strange beings.
Earth Spaceship Captain Ends Up In Alien Harem.
An expert in comb jellies meets a life-changing alien.
Final chapter; Lila and K.T join forces to take down Myrkur.
Annette prepares for her session while Mac plots to stop it.
Sloan and Octnavin finally... talk.
An encounter at a space diner reveals an alien side to Gwen.
Sasha continues to learn about this terrifying new world.
Beatrice and Louis have an awkward dinner with the Admiral.
Sloan kisses an alien for the first time.
Where our hero is visited by a mysterious alien...
Sasha starts her space road trip...being raided by pirates.
The Earthling meets another one of Tyr'ahnee's subjects.
Rent an alien body for best sex in the universe.
The war arrives at Cassandra and the Queen's very doorstep.
Sherri and Cassandra have their last moment of peace.
Rina offers her three slits to a tree creature.
Thomas and Shawn begin to enjoy their new planet.
Ana goes on a live dating game show featuring a glory hole.
The pre-pilot casting session for the show "Purple Infinity".
Shawn and Thomas are zipped off to an alien planet.
Peace is often achieved through bloodshed...
Abby learns biokinesis from a giant spider. Then fucks her.
A space-weary supply officer puts out and steps up.
Can Talia escape the tentacled lords of a distant planet?
Kate visits home to find something on her parents' porch.
A space explorer meets a dormant tentacle creature.
Space explorer meets dormant tentacle creature.
An asteroid miner meets a unique new bedfellow.
Nate defends his new family in the Rocky Mountains.
An alien peacekeeper meets an old friend.
A man shows a big tits Alien pilot "Earth Culture".
A random hiker enjoys the company of a hot Martian queen.
Nate escapes Mexico and finds a lull in the storm.
Sylvia goes for a little swim...and finds the unexpected.
An alien warlord finds a perfect subject for conquest.
An alien world, where the females can't bear young.
An alien world, where the females can't bear young.
An alien world, where the females can't bear young.
Sometimes it's good to get away from everyone. Sometimes not.
Paranormal fantasy of life and death on an alien dairy farm.
Paranormal fantasy of life and death on an alien dairy farm.
A woman crosses the galaxy to save two worlds.
A human scientist meets Izzy. Complications arise.
Gender swapping, sex, and reproduction, the painful way.
I'm abducted by the Manu & they need me to breed with them.
Why would a god care for a mere mortal?
Izzy talks about her past, Much fooling around ensues.
Luna comes to terms with her feelings for Rex...an alien.
Digging in ancient alien ruins always comes with risks.
Mary's firm has an unusual new employee.
A disgruntled exo-miner meets a native.
Chloe is missing. Finding her brings plenty of surprises.
A man plays host to an alien symbiote.
A short story of an alien abduction of sex.
Our latest surrogate is inseminated by The Mother, an alien.
An uncovered gate leads to incredible adventures.
Adonis Shephard has a mutated eye strapped to his back.
Aliens want her hot snatch. She learns to fight back.
Lance and Rex take their prizes from the recent battle.
An explorer falls for a shape-changing life form.
An alien life form takes control of their bodies and minds.
Husband and wife and sister-in law abducted by aliens.
The alien hybrid gets to know his new mother.
Being blind didn't stop her from grabbing love by the tail
A broken wing wasn't going to stop him from finding a mate
Rachel's family gets busy due to mysterious reasons.
She convinces him to do something wild. Was it too far?
Doris's first full day as a harem girl on an alien world.
A mistake of identity leads him into an alien affair.
First contact, is there time to prepare?
The blissful journey to the ultimate climax.
Tests must be performed on these alien creatures.
Two different species get intimate on a lunar colony.
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An alien experiments on the mothers and sons of Portsmith.
An alien race explores what it is to be human.
A humble hacker is thrust into an amazing adventure!
An alien experiments on the mothers and sons of Portsmith.
A struggling co-ed signs up for a paid breeding program.
An alien experiments on the mothers and sons of Portsmith.
Never date a woman you can hear ticking.
To a father growing old, nothing is dearer than a daughter.
Making friends and influencing people...
Sisters... share childhood memories and grownup dreams.
A mother finally falls. A new creature is born.
Irie gets ravaged and impregnated by a tentacle monster.
Sister has a frightening close call. Mother makes it better.
Women stripped, groped, fingered, fucked & taught a lesson.
Alan enters a cave to find it filled with slippery monsters.
Adam is about to have his world turned upside down.
A sleep over is interrupted by a creature looking to breed.
An experiment on alien plant life? Do it for science...
You wake up without memory of how you got here.
Sierra awakens healed, but a slave to lusty aliens.
Healing broken souls... and shattering dreams...
Mary awakes to find herself in a bed on an alien planet.
A houseguest initiated. A jealous mother. Friends fight.
Tentacle aliens begin turning Earth into their new nest.
Mom catches her son and his girlfriend.
What happens when a penis-like parasite finds a woman host?
Choosing to make a fresh start in life...
Symbiotic tentacles have found their princess.
Kristin and Sam are about to meet their new owners.
Samantha recalls how her servitude began.
Sisters, teachers, and mothers all fall to conquest.
The offer seemed too good to be true...
A "space western" style adventure. No sex.
As the Nova infection spreads, an accident alters all.
A merchant leaves his daughter in the custody of aliens.
A test subject turns into a broodqueen filled with eggs!
A lesbian alien crashes to earth by a boarding school!
I'm lying in the sun when the aliens come.
Mother and sister together at last.
A busty alien turns Adam's world upside-down.
Alien ray gun turns bachelor's life and others around.
Jake receives a ring that contains far more than a gemstone.
Carter is captured by a four-armed alien seeking a mate...
Some in Portsmith are up to no good.
The corruption spreads at school and in town.
A Colorful Constant Sex Time-Travel Comedy!
War made them enemies, circumstance will make them allies.
On an alien world, feared by its people, Zell finds love.
An alien plant gives Jen life’s most special gift.
Polyamory and psychic powers in Vegas.
Dr. Damien Turner fucks a plant for science.
Bella becomes breeding stock for a colony of xenomorphs.
An alien ravages a woman, leaving a surprise for her.
Wife is kidnapped and held for ransom by aliens.
Woman introduces daughter to the boundless joy of alien sex.
A young man discovers that his neighbor has a sexy secret!
A gender swapped, action/adventure litRPG.
Danielle enters a monstrous Venus fly trap and is remade.
Rey of Jakku has run short on funds. Some aliens can help!
The group sends a drone deep into the tentacle hive.
In which some girls enjoy being broken more than others.
First gay encounter in a bathhouse infested by tentacles.
A hike turns into an encounter with a beast like no other.
A busty alien turns Adam's world upside-down.
Abby Hatem and Princess Tzali return for a new adventure!
You start to pee and the tentacles take your pussy.
Son watches his posh mother becoming an alien breeder.
A planetary colony is overrun by horny xenomorphs.
Alien lifeform attaches to a fat man who is bullied.
The army is infiltrated. The mystery unravels.
Lucy is tested with orgasm games by a potential buyer.
Riley discovers an alien and gets probed by her big rod.
The tentacle monsters bring their women back.
Human woman hooks up with an alien for an overwhelming night.
Two teens discover an alien woman in the woods.
A gender swapped, action/adventure, sci-fi litRPG.
A new pay per view show has arrived... women vs tentacles...
Hiker is pollinated by strange alien plant.
Ancient alien sex toy leads to voyeuristic threesome.
New York City on the day of the Krinis invasion.
As Humanity reaches to the stars, the Isiri push back.
An ugly finish to the game, but with a gorgeous payoff.
Jacks life takes a major turn when an alien agent takes over.
All contents © Copyright 1996-2022. Literotica is a registered trademark.

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Aliens land and research human sexuality.
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[02] STAGE-1, EXTERNAL OBSERVATIONS, INFORMATION GATHERING:
[03] STAGE-2, EXTERNAL OBSERVATIONS, SEXUAL PRACTICES:
[04A] ABDUCTION, JOHN, MARY, JAMIE, LISA, SARA, SUSAN:
[04B] PREPARATION, JOHN, MARY, JAMIE, LISA, SARA, SUSAN:
[04C] INDIVIDUAL, EXTRACTION, JOHN, SYBIAN, SEMEN:
[04D] INDIVIDUAL, EXTRACTION, MARY, SYBIAN, FLUIDS:
[04E] INDIVIDUAL, EXTRACTION, JAMIE, LISA, SARA, SUSAN:
[04F] PAIRINGS, MARY, JOHN, DEEPTHROAT:
[04H] PAIRINGS, MARY, JOHN, MATING:
[04I] PAIRINGS, SARA, SUSAN, FOREPLAY, MIRROR:
[04J] PAIRINGS, SARA, SUSAN, FISTING, MIRROR:
[04K] PAIRINGS, SUSAN, SARA, OIL MASSAGE, BED:
[04L] PAIRINGS, SUSAN, SARA, FISTING, BED:
[04N] PAIRINGS, LISA, JAMIE, HANDJOB:
[04O] PAIRINGS, JAMIE, LISA, ORAL DISCOVERY:
[04P] PAIRINGS, JAMIE, LISA, THE MATING:
[04Q] EPILOGUE, JOHN, MARY, JAMIE, LISA, SARA, SUSAN:
They had landed twenty years ago, their cloaking systems made them invisible to the naked eye and to the military detection systems. Their large ships landed in deep water lakes throughout most of the civilized world and have been studying the social and sexual habits of earth's inhabitants.
The Alien's evolution was similar to human evolution but with unique differences.
Ten percent of Alien population have the capability of becoming invisible to the human eye. They would be the information gatherers.
Being a sexually orientated society, they studied the sexual habits of the human race with both curiosity and amusement.
To get detailed information, they abducted couples and individuals and, using vapor drugs, had the 'subjects' sexually perform before a research audience. Soon, some of the performances became a source of entertainment for the larger population of the space craft.
The 'subjects' are returned to where they were abducted. None remembered where they had been or what had happened to them. All are puzzled by the elapsed time. Some were returned to their point of origin as transgendered or with sexual preference changes. A few subjects are for further study and/or changes.
Those that were changed, considered their new sexualities to be normal. The transgendered are dressed appropriately and information is implanted in their minds that will guide them to communities of their new sexual orientation. A tracking 'chip' imbedded behind their ears will allow the Aliens to monitor their progress.
The transgendering and enhancements procedures are done using the Alien's Gel life forms and genetic hybriding of earth's plants.
[02] STAGE-1, EXTERNAL OBSERVATIONS, INFORMATION GATHERING:
For the first five years, all the Aliens did was gather information. The ten percent that had invisibilty used the night to identify the different human sexual genres within a 100 mile radius of their ship. Once identified, they ranked them in order, Male, female, Shemale and Hermaphrodite. They further subcatagorized their findings into heterosexual, homosexual and lesbian. Within each subcatagory was a detailed description of their personal day to day living habits and routines. By the end of STAGE-1, each craft had compiled a list of over ten thousand individuals that would be suitable for their testing program. Their 'computers' selected 200 'subjects' from the list that had a high probability for success. Each ship grouped their 200 selections into age, gender and sexuality.
[03] STAGE-2, EXTERNAL OBSERVATIONS, SEXUAL PRACTICES:
The Alien's micro-technology was now used to record the sexual activities and practices of the selected 'subjects. Micro HD cameras, no larger than the head of pin, were implanted in the walls and ceiling of all rooms within their residences, including those that the 'subjects' frequented with. By the end of STAGE-2 the Aliens had recorded over a million hours of sexual activity, habits, procedures and performances.
The Aliens were now ready to start their testing stage.
They knew that humans, unlike themselves, were sexually active all the time. The males ejaculated, the females orgasmed. The females could have multiple orgasms while the male required recuperation time before they could ejaculate again. They knew that a small percentage of the population preferred to have sex with their own gender and could not reproduce. Some were born with both male and female organs and they also were not able to reproduce.
The Aliens would be slow and methodical in their human testing. The test results of subjects in groups two and three would be used for transgendering.
They had drugs that would make the subject both compliant and receptive to their 'suggestions'.
Shemale transgendering and male enhancemnet is taken to the next level. The anus and rectal sheath are given the sexual properties of a female's labia, inner lips and vaginal sheath. Their 'womanhood' will form when there is sexual contact or the anticipation of sexual contact and a small labia will form around the anus. Within it will form inner lips and the rectal sheath will form into a vagina and all the sexual nerve endings will become active. When sexual activity ends, the anus and rectal sheath will return to their normal normal state.
[04A] ABDUCTIONS, JOHN, MARY, JAMIE, LISA, SARA, SUSAN:
The test room in the ship was large with no visible doors. The floor, ceiling, and walls were white and the room was bathed in a warm glow of light from no visible fixtures. Two Aliens were standing in the center of the room, their bland, generic bodies, stood out in contrast to the whiteness of the room.
There was a sudden burst of glowing light and John's body began to materialize at the end of the room. He was fully clothed, unconscious and held in a standing position, with his feet about two feet up the floor. After the effects of the 'transporter' faded, the Aliens approached him and removed all of his clothes. They then stretched his arms out level with his shoulders and spread his legs apart. While invisible forces kept him in that position, a violet blanket of light encased his body from his shoulders and arms to the feet of his spread legs. In seconds all the hair on his body below his shoulders was removed. The Aliens looked curiously at his hairless penis and balls.
They stepped back and soon another glowing light appeared and Mary materialized beside John. Again the Aliens looked with curiosity at Mary's firm breasts and hairless genitals.
One by one, Jamie, Lisa, Sara and Susan were transported to the ship, all were undressed and the hair on their bodies removed.
[04B] PREPARATION, JOHN, MARY, JAMIE, LISA, SARA, SUSAN:
One of the Aliens waved a hand and all six were put into a sitting position with their legs bent at the knees and spread apart. Their arms were brought down so they rested by the sides of their bodies. Round 'tubes' of light shot up from the floor under the spread cheeks of their buttocks. There was a slight flinching reaction from each of them as the 'tubes' entered their rectums. The 'tubes' turned bluish as a bowel cleansing liquid filled their lower intestinal tracts. In about a minute the 'tubes' retracted and yellowish balls rose up and settled onto the their buttocks. They soon changed to a brownish color as the contents of their bowels were evacuated.
In the males, the bluish liquid contained a rectal enhancer. Their rectal openings, sheaths and prostates were enhanced as their bowels were cleansed. Their anuses and rectal sheath would have thesexual sensitivity of a female's vagina and inner lips. Their semen production would be six times that of a normal male and their sexual rejuvenation would be immediate if stimulation was still present.
Finally, The Aliens released a inhaler gas into each of their mouths. Their preparation was complete. The inhaler gas included a mix of drugs that would,
1. Make them docile but keep them fully alert and aware.
2. A compliance drug that would compel them to follow 'suggestions'.
3. An aphrodisiac that will induce sexual arousal.
All were positioned turned so they were 'sitting' about six feet in front of a white wall. The wall changed into a full length mirror. A short burst of a colorless vapor flowed down from the ceiling, bringing them out of their unconscious states.
It took a few seconds to register in their minds that they were no longer where they were just few moments ago. They were now in a white room sitting in the 'air' in front of a large mirror. They saw their naked and hairless bodies with their legs bent and spread wide apart.
There were gasps of shock as the reality of their situation sunk into their minds. The drugs kept their fears and struggles to a minimum. In about a minute, the crying and struggling subsided as the drugs took full affect and sighs were heard as the arousal inducers spread throughout their bodies. All were trying to stop any outward sign of their arousal from being seen. Small gasps were heard as the females nipples stiffened, and their clitorises began protruding out from their protective hoods.
Small gasps could be heard from the males as their penises tingled, stirred and grew to full erection. The sensations melded into those that were radiating from their enhanced rectums.
Their erections and rigid clitorises would remain that way until the Alien's testing session was completed.
Soon they were looking at each others aroused nakedness in the mirrored wall and couldn't understand why they were so calm, so accepting.
Suddenly, everyone felt themselves being moved. They 'floated into a semi- circle in front of the long mirror.
The Aliens wanted to analyze and compare the orgasmic fluids from each of them before the sexual research was started.
Mary's and John's extractions would be different than the others. The Alien's version of a Sybian would be used. It would also have the effect of raising the excitement level in the other 'subjects'.
The top portion of the Sybian was similar to a saddle, without the horn. On the surface of the 'saddle' was an oval outline and in front of that was an outline of a 3/4" circle.
The top portion of the Sybi
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