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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

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

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

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

Amok Time Lord, Part 1

It has spock and kirk and the tenth doctor and captain jack harkness, and weird alien genitals, and transformation and pon farr, and cat people from both the star trek universe and the doctor who universe.

Cat, Crossover, Doctor Who, Fanfiction, Feline, Gay, Human, M/M, Male, Pon farr, Star Trek, Transformation, Vulcan, time lord

The Silent Treatment by Veder Vorocrat (AKA Veder Vicenti

Silent rose to his haunches to come level with the alien genitalia. it looked nearly human, though the very tip branched off into three evenly-spaced prongs. it pressed towards him. "well? do something already!"

Alien, Death, Fantasy, Gore, M/F, M/other, M/solo, Sci-Fi, Snuff, Vanguard, burning, guro

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

[C] Within Limits

Also includes bigger prey, similar size prey, size difference, nested vore, prey transfer, hyper genitals, alien genitals, and a sci-fi orgy setting.

Orgy, Sci-Fi, Taur, Unbirthing, Vore (soft)

Of Wives and Wyverns

Being so close to the alien genitals between my wife's legs unsettled me, but i swallowed my doubts and threw my arms around her bulk. "honey! are you okay?" she kissed me on the forehead and said she was fine-- relieved, even.

Anal, Bizarre, Blowjob, Cum, Cumshot, Dragon, Exhibitionism, FTM, Feet, Female, Fingering, Fisting, Forcedshifting, Handjob, Long, M/F, Male, Oral, Penis, Reptile, Romance, Sex, Transformation, Transgender, Vagina, Vaginal, Wyvern, tf, tgtf