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A Simple Procedure

The hybrid's lips parted in another sharp gasp as he felt his anal ring being spread around the cool, lubricated silicone, the probe gradually stretching him open wider and wider the deeper it went.

Anal, Cum, Dragoness, Female, Hybrid, M/solo, Male, Medical Procedures, Milking, Reluctant, Semi NC, Voyeurism, fucking machine

Secrets part 2

Her cunt gradually stretched, tensing and relaxing as it felt the thick member penetrate its depths. arcanine dropped his head to nuzzle nicobay in a reassuring manner, "you alright?"

Gender Shifting, Incest, M/F, M/F/F, Non-Anthro, Oral, Pokemon, Vaginal

Delos

Rumbling and standing at attention, the huge dragon loomed larger over the badlands, stretching up to a full kilometre in height without any effort, and gradually stretching up to two.

Dragons, Growth, Inflation, Magic, bigness

Dook the Halls

The hare's thrusts were deep but slow, gradually stretching the ferret out while also pounding hard into his prostate. the pain didn't bother him much now. it was barely noticeable compared to the pounding of his heart and the hare's cock inside his ass.

Anal, Christmas, Dom/sub, Ferret, Gay, Hare, Humiliation, Lagomorph, Male, Male/Male, Mustelid, Oral, Orgasm Denial, Rough Sex, butler, erotica, present

Heaven and the Size Changing Toy - Short Story

Heaven curled his digits a bit and moaned, leaning back, resting his plump horse butt against his hooves while panting a little and gradually stretching his sheath lip over the toy.

Alchemy, Cub, Dildo, Equine, Full metal alchemist, Growth, Horse, Hyper, Hyper Cock, Hyper Cub, Hyper balls, Insertion, M/solo, Macro, Magic, Transformation, Transmutation Circle, Unicorn, Young, Youth, bulging, excessive cum, large, rune, stomach bulge, tower

The Creep

Conor introduced one finger, then two, then three, gradually stretching out david's tailhole.

Blowjob, Cumshot, Double-Penetration, M/F/M, M/M, Rimming, Voyeurism

For Science!! Technically...

The tapered end slipping through and gradually stretching the muscle. then horribly, like the first thrust into the poor tiger wolf, he could feel the thrust much before it arrived...

Abduction, Bondage, Extreme, M/other, Rape, Tentacles

Blueberry Pie

He humped harder and faster, and the hot taking his inches was gradually stretching around more and more of the knot being jammed inside.

Chubby, Cum, Food Play, Forced, Forcefeeding, Fox, Gay, Gideon Grey, Knotting, M/M, Male/Male, Messy, Nick Wilde, Rape, Rule 34, Size Difference, Vulpine, Zootopia, cum inside, non-con

Dogs and Delusions

It was certainly an odd feeling, the slow, gradual stretching of her ear, but the more that pressed in, the more sensations ran through her - jolts of pleasure mixed with pain, slick and gooey warmth filling the core of her skull, the throbbing of something

Blood, Corgi, Cum Inflation, Dragon, Earfucking, Gore, Hyper, Hyperphallic, ear penetration, non-fatal

Warm Hearts, Cozy Days: Chapter 3

Feeling the warm cock pulsing gently inside of themselves, pushing in and out gradually, stretching them out all while he gently leaned above them, it was so much.

ABDL, Anal, Balls, Belly, Buttplug, Chubby, Cock, Cum, Cumming, Diaper, Diapers, Dick, Ejaculation, Enby, Explicit, Foreplay, Humping, Licking, Male, NB, Non-binary, Oral, Orgasm, Plug, Pokemon, Series, Sex, Sheath, Story Series, Typhlosion, Urine, Watersports, Wet, buizel, wetting

Werewolf's Thirst

The boy already bouncing on that growing cock, eyes fluttering from the gradual stretch. the changing wolf moaned and growled, his body trembling as he lost his human form.

Bestiality, Father, Incest, Son, Transformation, Werewolf, Wolf, Zoophilia

Papa's Love

Undeterred, balto kept it up, pulling back and shoving forwards, his knot gradually stretching her apart, little by little. "oh, fuck, balto! fuck me! i need that knot in me!" dixie shouted.

Adult, Adult Content, Afghan Hound, Age Difference, Aleu, Balls, Balto, Blowjob, Canine, Cock, Cub, Cum, Cum Inflation, Cumming, Daughter, Deep Penetration, Deep Throat, Dick, Erection, Father, Father and daughter, Fellatio, Female, First Time, Fucking, Heterosexual, Husky, Incest, Inflation, Jenna, Kissing, Knot, Kodi, M/F, Male, Male/Female, Mating, Mother, Mother And Son, N/C, Non-Consensual, Penis, Pussy, Rape, Seed, Sex, Size Difference, Son, Spooge, Straight, Tail, Tie, Tied, Urine, Vagina, Vaginal, Virgin, Vulva, Wolf, Wolf Dog, Yiff, Young