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No Accounting for Instincts

Seeing that his prey had no chance was pushing just the right buttons in his instinct controlled mind, his chest filled with pride at conquering such a sizeable meal.

Disposal, Earth pony, Feral, Gryphon, Male, Pellet, Pony, Scat, Vore, Zebra, finch

Intimidating Instincts

Rebecca wiped the sweat off her pale forehead and threw back dangling threads of her vivid purple hair back. She sighed as she sat back against an uncomfortable chair and looked towards the computer screen. She was writing a research paper on the...

Human, M/F, NSFW, Pokemon, Pokephilia, Size Difference, Tyranitar

Primal Instincts

There was a primal instinct inside of him to breed ravuul again and again to show the whole tribe that this lizard belonged to him and him alone.

Eggs, First Time, Heat, Impregnation, Lizard, Lizardman, Mating, Transgender, Transman, mpreg

Racing by Instinct

A laughing bark of surprise came out when he regained control after sliding around that turn, the thanks he gave to his instinct for guiding him through it.

Clean, Coyote, No-Yiff, Otter, Skunk, Wolf, ohio, racing

Hunter's Instinct

Day 48 Welp, I went back to the ruins today with a spear and a makeshift torch and came up with a whole lotta nothing. Made my way down the stairs, spear at the ready and keeping an eye out for traps and there was nothing to write about. There's a...

Amazonification, Exhibitionism, Fanfiction, Female, Gryphon, Island, Mind Control, My Little Pony, Predator/Prey, Solo, Violence (Not In Yiff), jungle

Following Their Instincts

To be fair, jenna herself was able to stay under control while in the presence of a virile stud, even with her instincts _screaming_ at her to let him breed her.

Adult, Anal, Ass, Balls, Balto, Belly, Bisexual, Bulge, Butt, Cheating, Cock, Cuddling, Cum, Cum Inflation, Cumming, Deep Penetration, Deep Thrust, Dick, Dog, Doggystyle, Dusty, Erection, Exhibitionism, Explicit, Female, Fucking, Heat, Husky, Hybrid, Hyper, Hyperphallic, Impregnation, Incest, Inflation, Jenna, Knot, Kodi, Light Nudity, M/F, M/M, Malamute, Male, Male/Female, Male/Male, Masturbation, Mating, Mild NC, Non-Consensual, Nudity, Oral, Penis, Precum, Pregnancy, Pregnant, Pseudo-Rape/NC, Pussy, Rimjob, Rimming, Seed, Sex, Sheath, Size Difference, Spooge, Tailhole, Tie, Tied, Vaginal, Wolf, Wolf Dog, steele

Trust and Instinct

"don't worry son, just trust your instincts!" his voice distorted until nothing intelligible could be made from it, just loud grunts and groans.

Age Difference, Anal, Ape, Character Development, Cock Growth, Cub, Dragonball Z, Father, Father and Son, Foot Fetish, Footjob, Gay, Gohan, Great Ape, Human to anthro, Incest, Loud sex, Love, M/M, Male, Male/Male, Mammal, Muscle Growth, Musk, Night, Oozaru, Romance, Rough, Rough Fucking, Rule34, Size Difference, Son, Thick penis, Transformation, Uncut, Young, animalistic, big penis, cum in ass, dirty talking, dragon ball, fanfic, goku, moonlight

Predators' instincts

"that instinct often blends in with the sexual stuff that sometimes brings critical problems along, predators can lose the control to follow those basic instincts." elizabeth says looking at nick.

Adult Content, Age Difference, Anal, Angst, Anthro, Anthropomorphic, Aroused, Ass, Ball Fondling, Balls, Bedroom, Blowjob, Boobs, Boy, Breast Fondling, Breasts, Butt, Canine, Character Development, Claws, Clit, Clitoris, Cock, Compassion, Consensual, Cowgirl, Creampie, Cum, Cumming, Cumshot, Cunnilingus, Deep Thrust, Dick, Disney, Doggystyle, Ejaculation, Erection, Explicit, Family, Fanfiction, Fellatio, Female Ejaculation, Fingering, First Time, Fox, Fucking, Hard-On, Heterosexual, Humping, Incest, Kinky, Knot, Licking, Love, M/F, Missionary, Mother, Naked, Naughty, Nipples, Nude, Oral, Orgasm, Penetration, Penis, Precum, Seed, Series, Sex, Sheath, Size Difference, Son, Tailhole, Tits, Tongue, Vagina, Vaginal, Virgin, Vixen, Vulpine, Vulva, Yiff, Yiffy, Young, Zootopia

A Matter of Instinct

Her new body is not without its perks, and the accompanying instincts make adjusting to life as a 'pokemon' a breeze. until a tall, strange pokemon strides into her life and sets her instincts afire like never before. "stop, articuno!

Absol, Charmander, Eevee, Impregnation, Knotting, Lactation, PMD, Pokemon, Pregnancy, Pregnant

Don't Badger the Shopkeeper! (Badger TF)

Travis, the human, was merely a spectator to a body now nearly controlled by animal instinct. his awareness continued to wane, the smaller braincase unable to hold the level of human consciousness he once enjoyed.

Badger, Feral, Instinct, Magic, Mating, Transformation, mental

Cat Got Your Tongue (Cat TF)

She could no longer fight the feline instincts plaguing her mind, but thankfully, the human side of her had completed the mission for now.

Cat, Feline, Feral, Instinct, Mating, Transformation, mental

The Perfect Costume Piece

It simply did what it needed to do to survive and follow its instincts. and i was content to exist in such a fashion. my body was active at night for the most part.

Alien, Gore, Insect, Instinct, Transformation, cocoon, infection