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Angela's Downfall; Beginning

Every thrust he made into her depths weakened her, his alien genitalia making itself at home within her. toxicroak’s eyes opened. angela saw that her expression must have changed, because he put on that smug grin again.

F/M, Human, Impregnation, Pokemon, Rape, Toxicroak

[Commission] A Breeder's Life: Up for Adoption

Rask's wife, and the 'donor' of the alien genitalia grafted to the human's crotch—was apparently a darling of the breeding scene whose eggs always produced strong, healthy offspring. eric was just the receptacle to carry the pair's eggs.

Alien, Anthro, Apetslife, Balls, Bestiality, Breeding, Collar, Commission, Cum, Cunt Boy, Domination/Submission, Exhibitionism, Feral, Forced, Forced nudity, Gay, Heat, Human, Humiliation, Knot, Knotting, Licking, M/M, Male Pregnancy, Monster, Musk, NC, Nudity, Oral, Oviposition, Ownership, Pheromones, Precum, Pregnancy, Reluctant, Sheath, Vaginal, Wolf, Zoophilia, e-stim, sniffing

Xenophilia

It fanned those long fins, spread them wide to fill my mouth, then pushed off against teeth, tongue, and alien genital spear. down it went, even as my gut heaved, against the gagging and desperate chokes, it made its way. i couldn't resist now or ever.

Accelerated Pregnancy, Alien, Anal Prolapse, Anal Sex, Birth, Blood, Body Horror, Bondage, Breeding, Dark, Death, Depravity, Digestion, Ejaculation, Extreme, F/F, Fatal Reproduction, Female, Forced Feeding, Gore, Harsh, Heterosexual sex, Homosexual sex, Horror, Human, Impregnation, Inflation, Insect, Intestinal Birth, Larva, Lesbian sex, Lust, Masturbation, Messy, Oral Sex, Pregnancy, Rape, Sacrifice, Sci-Fi, Slime, Snuff, Traumatic Birth, Vaginal Sex, Vaginal trauma, Violence, apocalypse, broken, genetic engineering, imprisonment, infestation, parasite, semen, vomit, worms

Gay Alien Story Collection

Instead, i reach down between your legs and begin to play with your newly-transformed alien genitals, teasing and stroking them until you cry out in ecstasy. \*smirks\* \*chuckles darkly\* yes, it is true.

Alien, Gay, Grey, Human, Impregnation, Insect, Male, Male/Male, Oviposition, Reptile, Xeno, Xenomorph

Betty/Human 2 — The Last Light of Humanity

A hundred alien genitalia all aimed my way. the burn in my loins enough to tell me, i was totally and utterly fucked. then nearly in unison the tribe released. i was immediately drenched, no room to evade, no cover to protect myself.

Alien, Elderly, Human, Impregnation, Loss of self, M/F, Mental Degradation, Oviposition, Transformation, documentary

Warm Up 032 MeAndGruntWrex

Characters: “Me” (Male, human, 20s) Urdnot Grunt (Male, krogan, young adult) Urdnot Wrex (Male, krogan, middle-aged) Story Text: “And this,” Grunt introduced, gesturing to the slightly taller, more grizzled-looking, off-yellow skinned,...

Age Difference, Alien, Alien Sex, Alien genitalia, Armpit, Armpit Licking, Armpit kink, Armpit musk, Armpit sniffing, Chubby, First person perspective, Gay, Gay threesome, Genital slit, Grunt, Human, Krogan, Male, Male/Male, Male/Male/Male, Mass Effect, Masturbation, Musk, Musk kink, NSFW, R34, Reader x canon, Relationship, Rule 34, Slit fucking, Slit penetration, Slit sex, Sweat, Sweat Play, Threesome, Urdnot Wrex, Urdnot grunt, creature, fanfic, fucked silly, older male, wrex, writing, xenophilia

An Ideal Candidate ("Project Unobtanium" series, #1)

"shit shit shit" "as you probably have had carefully researched, the aliens genitals are internal". he was horrorized at the thought of losing his penis and testicles.

Alien, Ass, Belly, Body Horror, CBT, Cock And Balls Torture, Cock and Ball Torture, Comedy, Fat, Foreskin, Gay, Horror, Human, Humiliation, M/solo, Male, Malleable, Nipples, Penectomy, Penis, Science, Science Fiction, Scientists, Space, Transformation, armpit, armpits, clay, gut, hairy, sentient, spaceship, testicles, tf, tube, weird

Frustration

Finally, with a movement both slow and awkward, he took the alien's genitals into his hands. even with just the haltonian's sheath and testicles, they seemed large, but then, the alien was probably at least twice, perhaps even three times his mass.

Alien, Handjob, Human, M/M, Sci-Fi

Earth Force Diplomacy

Jenna finally decided to study what she had been fondling and her eyes grew a little wide as she stared at the alien genitalia in wonder. the shaft had triangular ridges that were stacked like an evergreen tree.

Bukkake, Double-Penetration, Fighting, Foreplay, Human, M/F, Military, Pheromones, Reptile, Rough, Sci-Fi

Just Another Day On The Frontier: A Xeno Tale

What she guessed was the thing's cock was actually fairly unassuming as far as alien genitalia went. if she was going to have to fuck the thing, at least she would not need reconstructive surgery afterwards.

Alien, Breeding, Eggplay, F/F, Human, Impregnation, Inflation, M/F, M/F/F, Mild Violence, Oviposition, Space, Stretching, Threesome, Transformation, Vaginal

Cosmo's Need To Seed

Tails looked down, and saw the green-skinned alien's genitals. there was an opening right between her legs, and it looked a lot like a vagina.

Amy Rose, Anal, Cat, Cosmo the Seedrian, Cucking, Facesitting, Female, Female/Female, Foursome, Fox, Hedgehog, Male, Male/Female, Male/Female/Female, Male/female/female/female, Miles Tails Prower, Seedrian, Smacking, Sonic the hedgehog (series), Tails the fox, Threesome, blaze the cat, spitting

GMAD-27

He probably needed time to process the sight of alien genitalia, just like i needed time to process the absurdity playing through my speakers. “w-wait. wait wait wait! y-you're… you're gonna fuck me now? in this fucking storage room!?" “yes!

Alien, Anal, Audio Logs, Blowjob, Claws, Cock, Cum, Deep Throat, Discovery, Dystopia, Erection, Fear, Fear Play, First Person, Foreplay, Gay, Handjob, Horror, Human, Humor, Interspecies, Knot, Licking, M/M, Male/Male, Mate, Mating, Mating press, Mild Bondage, Mystery, Oral, Orgasm, Predator/Prey, Sci-Fi, Semi Consensual, Slime, Space, Tail, Tongue