Species Transformation Stories

Read stories about the wild adventure of crossing species boundaries to explore entirely new forms of existence! Whether transforming into mythical creatures, animals, aliens, or fantasy beings, species transformation opens up incredible new worlds of experience.

More in Transformation

💅 Bimbo 🧠 body swap 💪 body transformation 🍈 Breast Growth 🚻 gender change 🦎 shapeshifting

+2 more

Stories (234)

Ideas

Components

Scenarios

Creators

Collections

Stupid Sexy Botfly

Three scientists trapped on a sweltering alien outpost debate whether to mate with their botfly-infected male colleague for science, unaware one of them is already carrying his larvae.

Blood Weaver

A 21-year-old alone on her birthday is lured by a vampire-fae prince who craves her rare, magic-binding blood, offering her power or a deadly hunt.

Witch's Curse Turns Lover Into Animals

A cursed witch must make a skeptical new lover climax after sex turns him into a dog, so she offers herself to him like a bitch in heat.

🍑

Botanist Tamed by Alien Vine

By writer-anon

RedQuill

Botanist Tamed by Alien Vine

In the Sundarbans, a starving botanist discovers a sentient, pulsing vine plant that claims his body with possessive, rhythmic coils, feeding a hunger no food can satisfy.

💜

Farm Hand Seduces Shy Boss

By striker519

RedQuill

Farm Hand Seduces Shy Boss

A desperate crocodile farmhand's last resort job lands him on the estate of a gentle, wealthy human, where unexpected kindness makes his walls crumble.

🍒

Snow of Siberia

A stranded Russian fighter pilot, broken and freezing, is saved from death by a werewolf whose bite transforms her into a white wolf, culminating in a feral, permanent union.

🌙

My Dumbed-Down Slave Debut

By sitron2007

RedQuill

My Dumbed-Down Slave Debut

I took a quiz based on the following prompt: You and your significant other download an app that can magically change each other, applying temporary physical and mental effects while using the app. The two of you decide to have some fun, and customize each other for a night of fun, going back and forth changing each other physically and mentally. Here's my answers to the quiz: What's your main character's name and gender?: Anya. They are Female What's your MC's partner named, and what gender are...

😈

The hound of ulster reborn

After a wolf attack, a woman's body transforms into a powerful wolf-woman, awakening desires she must explore with her best friend.

Land and Sea

Genshin Impact Ajax x Aether. A lonely fisherman encounters a mysterious merman near his boat, sparking a silent, slow-burn connection

👀

Claimed by the Werewolf Pack

A woman stalks the forest toward a cabin where three werewolves shift into horny wolves who mate her senseless and bond her to their pack forever.

🍑

Bimbo Demoness Fucks MILF in Shower

By gabrielwalley

RedQuill

Bimbo Demoness Fucks MILF in Shower

A transformed shy guy, now a demoness, pleasures her MILF girlfriend in the shower, leading to intense futa-on-bimbo action.

✨

Duchess Gives Birth to Futa Heir

By gabrielwalley

RedQuill

Duchess Gives Birth to Futa Heir

A fallen angel and a succubus wait nervously as a bimbo barbarian gives birth, her duchess wife praising her through labor until a futanari heir arrives.

✨

Hiker turned into horny harpy

Hiker Luke is cursed by a harpy, shrinking as his male body dissolves into a woman named Lucy, then her arms shed to grow blue wings, legs crack into talons, and her new female form leaks uncontrollably.

🫦

To Worship a Wolf Goddess

A resurrected wolf goddess appears in a man's apartment, claiming him as her first follower by making him touch her divine abs and demanding his worship.

😈

Dig Site Seduction

An archaeologist deciphers a warning about the Gorgon's venomous gift, but a serpent's bite awakens a slow, sensual petrification within her.

💜

Lab Accident Makes Scientist Breed Roommate

After a lab accident, a shy student sprouts tentacles and feels a primal urge to breed her roommate, who eagerly consents to being filled with eggs and fertilized.

🔥

Vulpes Lagopus

A tomboy teen fighting a fever from a fox bite awakens changed, her body remade with feral instincts that blur the line between human and beast.

💜

The Truth is Out There

Scientist seduced by the Alien Queen - what will Dana and Securitywoman do now? @Black Bra@Clothed Sex @Straight to Lesbian @@slow burn erotica @female orgasm @corruption @Kissing @Eating pussy. @Clothed Sex @Fingering @Double Cunnilingus @Alien Queen @Futanari @bukkake @Tentacle aphrodisiac @Corruption @Dana Scully @Scientist @Securitywoman

Stranded Mermaid Transforms Me into One of Her Kind

A lonely beachgoer follows a mysterious song to a mermaid who begs for her kiss, transforming her into a scaled creature on the sand as both surrender to the erotic climax of rebirth.

🫦

Dekusite and Vampire

By clankcaster

RedQuill

Dekusite and Vampire

When a symbiote-infected Izuku merges with vampire Himiko Toga, their heated bond consumes them both into one dangerously perfect girl.

🔥

Amazon Milked by Horned Mother Cult

A captured Amazon warrior is transformed into a horned milk cow by a fertility cult, her body reshaped and milked as she succumbs to primal pleasure.

❤️‍🔥

Naga Tide Caster Breeds Wounded Ranger

By anavel_gato2004

RedQuill

Naga Tide Caster Breeds Wounded Ranger

A wounded ranger bleeds out in a rain-soaked forest when a widowed naga tide caster finds him—curiosity ignites into a tender, primal breeding in her hidden watery lair.

The Mare Apparent

A spoiled socialite gets bitten by a glowing pony, transforming into a snobbish mare shipped to a farm, where a rough draft mare breaks her pride and steals her horse heart.

🔥

Moreau biotech

An intern awakens in Dr. Moreau's lab, guarded by a lioness named Kira. Offered a choice between joining the cutting edge or becoming an experiment, she eagerly embraces the ruthless path to power at the heiress's side.

Roommate's New Scent Seduces

An orphaned were-cat teen flees a mugging, his heightened senses tortured by his goth roommate's scent as her wild pheromones draw them closer.

Battle Of Fangs & Claws

A vet who secretly treats a werewolf pack is shocked when their alpha arrives with his wounded sister—and recognizes her as his soulmate from a past encounter.

Student Transforms in Secret Archives

A male student and his half-dragon best friend find a pink orb in a secret archive passage, transforming him into a horned tiefling woman with no memory of his past life.

🔥

The Stray Kitten Was Actually Woman

A shapeshifting kitten rescued from a storm becomes a nude woman with impossible curves in his lap, repaying his kindness by grinding against his trapped cock before riding him through multiple orgasms.

Turned into sapphic lovers at the carnival

Two best friends Zemo and Sammi explore a strange carnival that appeared seemingly out of nowhere. Sammi the more outgoing of the two drags Zemo along to explore finding everyone dressed in incredibly good costumes of fantasy races and including kitsune, succubi, vampire brides, girls with wolf ears and tails, cat girls, genies, and more! A succubus slides up and welcomes them to the carnival and places matching bracelets in their wrists and happily asks how long they've been a couple. The...

🔥

We Did The Mash

At a Halloween swingers party, a shy Belle is seduced by Poison Ivy and drawn into a supernatural orgy where everyone becomes insatiable.

Alien Symbiote Claims Me

A stranded xenobotanist discovers a sentient alien symbiote in a lush jungle, where the shimmering entity takes control, binding them in an equal, sensual partnership of living clothing and shifting tentacles.

Shifter's Wild Surrender

A guy's new girlfriend reveals she's a panther shifter who transforms when aroused, leading to raw animalistic sex and a secret dual-life relationship.

🍑

Scholar Turned Succubus Tempted by Demon

After an ancient ritual, shy antiquarian Nicole transforms into a horned succubus, then must navigate predatory humans and a powerful demon mentor while mastering her dangerous new form.

Kitsune Forrest

By azlhs

RedQuill

Kitsune Forrest

An American couple trespasses into a forbidden Japanese forest, only to discover an ancient fox shrine that transforms them into half-human kitsune as spirits force them into a voyeuristic ritual.

🌙

Rooted Hero Seduced by Plant Queen

Wonder Woman becomes a sentient plant in Poison Ivy's greenhouse, her body turning green and merging with vines as a flower-shaped device stimulates her.

🍑

Fox Falls to Skunk Goddess's Contract

By l1ckyl1cky

RedQuill

Fox Falls to Skunk Goddess's Contract

At a burlesque show, a feminine fox boy catches the eye of a huge, elegant skunk girl who tricks him into endless debt, then pumps him full of addictive pheromones that transform him into a busty, airheaded bimbo who loves being hers.

🌶️

Horny Couple's Barn Transformation

Bankrupt couple Yama & Mahe flee to an Arizona farm with twins, then find a scroll that triggers a monstrous bull transformation and a raw, primal sexual awakening.

💫

Shrinking Husband's New Role in Life

By desbaka

RedQuill

Shrinking Husband's New Role in Life

A family man shrinks uncontrollably as his wife and daughter grow larger, shifting power dynamics in their home while he races to find a cure before disappearing entirely.

👀

We Are The Dominant Species.

An alien hum inside Alex's skull. Wired to a chair, he's mentally hijacked by three naked extraterrestrial women needing sex lessons. He must correct their porn-sourced ideas, guiding them toward authentic submission.

🖤

Courier Bites Alien During Intimate Contest

By littlemissexulansis

RedQuill

Courier Bites Alien During Intimate Contest

A human courier’s delivery to ice-giant aliens turns into a primal biting contest, her cute teeth leaving possessive marks as their need for her warmth and

Omega Awakens to Rival's Claim

By sienna

RedQuill

Omega Awakens to Rival's Claim

A transmigrator hides his emerging omega nature and powerful mecha from the alphas drawn to him during a wild rut.

Alpha Wolf Submits to Dominant Wendigo

By augustraccono

RedQuill

Alpha Wolf Submits to Dominant Wendigo

A werewolf FBI profiler's primal side claims his wendigo psychiatrist as mate, leading to a violent ritual where he must choose to remain divided or evolve

🌙

Shy Guy to Amazon Bimbo Futanari Gains a Demon Girlfriend

By gabrielwalley

RedQuill

Shy Guy to Amazon Bimbo Futanari Gains a Demon Girlfriend

A shy Canadian transforms into a two-meter Amazonian bimbo futanari, sharing showers with her huge-titted girlfriend while a demonic destiny calls.

✨

NÜ-YOU: we augment your reality

A couple's VR character experiment transforms them into seven-foot muscle women with four arms, leading to a night of passionate discovery and a new life.

Warrior Captured and Transformed by Orc Shaman

A captured fighter chooses magical transformation into an Orc shaman's breeding woman, her body remade with glowing runes of ownership as she learns to worship his size.

💜

Drowned by a Lake Spirit's Seduction

A geologist discovers a hidden lake on a new island, but its beautiful, mysterious inhabitant rises to distract him with ancient, seductive trickery.

🖤

Sexually healing a stranded pilot

By noxthefallen

RedQuill

Sexually healing a stranded pilot

After crash-landing, wounded Commander Jace is rescued by Zephyr, an alien leader who insists their species' intimate healing ritual is the only way to save him.

🌙