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A Predator's Predisposition

He watched with a sadistic grin as the pup's pupils dilated, his visor glowing a soft pink light again as he turned up the prey instincts on the pup once more.

All the way through, Anal, Aqua Sex, Ass, BDSM, Bareback, Bestiality, Canid, Cetacean, Cloacal Sex, Cum Inflation, Deep Penetration, Deep Throat, Deep Thrust, Dominant, Domination/Submission, Fins, Forced Sex, Fucking, Gagging, Gang-Rape, Gangbang, Gay, Homosexual, Hypnosis, Inserting, M/M, M/M/M, Master/Pet, Master/Slave, Mind Control, Multi-Cock, Non-Consensual, Orca, Orgy, Ownership, Penetration, Penis, Pet, Predator/Prey, Prey, Prolapse play, Prostitution, Pseudo-Rape/NC, Rimjob, Rimming, Rough, Rough Sex, Rubber, Semi Consensual, Shark, Size Difference, Size Queen, Slave, Small, Sub, Submissive, Swimming Pool, Tailhole, Threesome, Underwater, Wet, Zoo, Zoophilia, prolapse

Midnight Muffled Mare Moans

A mare, when aroused, practically dilated like a cavern in order to invite any and all inside right up until climax when they had enough muscle strength to force it out.

Anthro, Female, Feral, Fisting, Gaping, Hippogryph, M/F, M/F/F, Male, Mare, Size Difference, Soft Vore, Transformation, Unbirthing, Vaginal, fist, poly, ranch, sizeplay, unbirth

Sub Swapping [Subscriber Reward

His gaze suddenly became unfocused, his face started to slacken, and his pupils were dilating. …were they changing colour too?

Avian, Bird, Canine, Four way, Fractionation, Hypno, Hypnosis, Kitsune, Oral, Public, Reptile, Snake, Wolfdog, barista, cafe, coiling, swapping

A "little" unbirthing story (part 2)

Some fursons selling kit that included dilatation medicine, chloroform, even vials of curious liquids that changed both her and her son's genes. everything she needed to perform the dark deed she was planning.

Bedroom, Diapers, Heat, M/F, Masturbation

[QC-081] Hungry Like A Snake

In only a few powerful lurches, her cock lips dilated to swallow his upper arms, leaving only his head, shoulders, and wing elbow poking out.

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Friendship between travelers

When lion-o was sufficiently dilated, the cougar stood up and, adjusting the warrior's posture with his hands, embraced him from behind and began to penetrate him gently.

Adventure, Anal, Cougar, First Time, Gay, Lion, M/M, Sex, Thunder Cats, Violence (Not In Yiff), fanfic, lion-o

Cabin Sasquatch Jerky

He didn't know what to do until jermey happened to clench his pucker on nick's nose before the dark hole dilated and flushed nick's nostrils with a burst of sasquatch stink. nick's yellow eyes rolled up once more as he drooled and slobbered.

Ape, Cabin, Collaboration, Corruption, Cum, Feet, Foot Fetish, Gay, Musk, Sex, Transformation

Relationship Paradigms II

The violent abuse of her passage temporarily left her gaping all the way from plump vulva to dilated cervix. not just that, but her womb was wide open, his flare clearly having forced her open.

Anatomically Correct, Bitch, Bunny, Canine, Deer, Doe, Egg, Eggplay, Equine, Female, Fisting, Gaping, H/F/F, Herm, Hybrid, M/F/F, Male, Ovi, Oviposition, Plant, Stallion, Transformation, Unbirthing, experimentation, fist, gape, intersex, living condom, trans, unbirth

Snow Bunny Ch.21

His eyes were pure black from his dilated pupils and everything was in slow motion. he could see tree trunks before they actually came into sight. he could see animals fleeing before even nearing them.

Anal, Bondage, Fantasy, Feline, M/M, Oral, Rimming, Story Series, Wolf

Kobold's Little Pet (1/?)

Her eyes were trained on his the whole time, watching the dilation of surprise in his pupils morph to lust as he realised her intentions, legs spreading in anticipation.

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Gospel of the Masters - Ch. 03: Eyes

He was gasping for air, breathing heavily, eyes dilated by fear. he hurried, madly rushing to get into position before…. 'oh no.…' the realization poured down his shoulders like ice water. he was too late.

Communication barrier, Gay, Interspecies, Isekai, Love, M/m human, Master/Pet, Master/Slave, Pet, Plot before porn, Slowburn, Trauma, Wolf, healing, petplay

The Dragon Deflowered (Formatted to Fap!)

The dog's cock was replaced by a butt plug and though the dragon's dilated, once virgin, ass could take it - it was still uncomfortable.

Anal, BDSM, Bondage, Gay, M/M, N/C, Rape, Virgin