Free AI Sex Story Generator
Write uncensored NSFW stories in seconds. No sign-up, no limits on imagination. 18+ only.
An erotic story generator that writes what you want
Smutty is an AI erotic story generator and sex story maker for adults. Type a premise, or leave it blank, pick a story type, and it writes a custom sex story in seconds: a hook, real tension and a payoff, with the characters, kinks and heat level you chose. Want a short sex story for tonight or a long one you can keep going chapter by chapter? Set the length and go.
Every story is original and written just for you. Nothing is published, and there's no account to create.
How it works
- Set the sceneType a prompt, tap 🎲 Surprise me, or pick a story type. Each type has its own options, like roles, setting or who makes the first move.
- Dial it inChoose heat (Spicy, Steamy or Explicit), tone, point of view, length and character names.
- Read and keep goingYour story streams in live. Pick what happens next, continue to a new chapter, rewrite it hotter or softer, or download it.
Sex story types
Each story type has its own generator with tailored options. Pick one to start with the right presets.
Pairings
Relationships
Scenarios
More story types are added every week.
NSFW story prompt ideas
Stuck for a plot? Tap an idea to load it into the generator, or use 💡 Get prompt ideas for five fresh premises at a time.
Read stories by other readers
Readers publish their favorite stories to the public library, sorted by category and voted on by everyone. Filter by heat, tone and length to find your kind of story, then vote for the best ones.
Browse the story librarySmutty vs other NSFW story generators
How Smutty compares with the tools people usually try first. Competitor details come from each product's public pages and reviews; "—" means we couldn't confirm it.
| Feature | Smutty | Perchance | My Spicy Vanilla | Smitten | General chatbots |
|---|---|---|---|---|---|
| Free | Yes | Yes (ad-supported) | Limited free tier, paid plans | Limited free tier, paid plans | Yes, with an account |
| No sign-up | Yes | Yes | — | Yes for free stories | No, account required |
| Daily limit (free) | 5 stories + 10 chapters | None stated | Daily chapter cap | Daily story cap | Usage caps |
| Heat control | Spicy / Steamy / Explicit | — | Yes | Tone and POV | Explicit content not allowed |
| Characters | Names + type options | Character generator | — | Yes | Via your prompt |
| Continue in chapters | Yes, with choices | Yes | Yes | — | In the same chat |
| Private by default | Never published; library is private | — | — | — | Chats saved to your account |
| Download | .txt | — | — | — | Copy / export chat |
Updated November 2026. Features and limits change, so check each site for the latest.
Privacy and safety
- Private by default. Stories appear only in your browser. They're never published and never indexed.
- Your choice what's kept. Without an account, stories aren't stored on our servers. With a free account they're kept in your private library, and you can switch history off or delete everything any time. Stories are never used to train models.
- Adults only. Smutty is for readers 18+, and every character in every story is an adult.
- Clear lines. No minors, family or step-family, animals, non-consent or real people. These rules are checked on our server, not just in the form. Read the content policy.
Frequently asked questions
Is Smutty free?
Yes. Without an account you get 5 free stories and 10 follow-up chapters a day. A free account raises that to 15 stories and 30 chapters a day. Tokens are optional: they cover Long stories and anything past the daily free limit.
Do I need to sign up?
No. You can write stories without an account, email or login. A free account (email sign-in link, no password) adds more free stories, a private library with your history, and is required to buy tokens.
Is there a limit?
Free use is 5 stories and 10 chapters a day without an account, or 15 and 30 with a free account, reset at midnight UTC. Past that you can use tokens: 1 per Short or Medium story or chapter, 2 per Long one.
Is it uncensored?
Smutty writes fully explicit adult fiction and lets you set the heat from Spicy to Explicit, so it's far less restrictive than general chatbots. It isn't a free-for-all though: it won't write minors, family or step-family storylines, animals, non-consent or real people, and those rules are enforced on our server.
Is Smutty a Perchance alternative?
Yes. Like Perchance, Smutty is free and needs no sign-up. It adds story-type presets, heat levels, character names, chapters with "what happens next" choices and one-click download, built specifically for adult stories.
Is it private?
Stories are never published or used to train models. Without an account, nothing is stored on our servers. With an account, your stories are kept in a private library only you can see, and you can turn history off or delete everything at any time.
Can I continue a story?
Yes. After each part, pick one of the suggested "what happens next" choices or press Continue to write the next chapter with the same characters, settings and voice.
Can I download my story?
Yes. Use Download .txt to save every chapter as a plain-text file, or Copy to paste it anywhere.
What's not allowed?
Every character must be an adult (18+) and everything must be consensual. Smutty won't write about minors or school-age settings, incest including step-family and in-laws, animals, rape or coercion, sleeping or incapacitated people, real or famous people, or extreme gore and scat. See the content policy for the full list.