Writing a BDSM story with your own limits set first
People who practise BDSM do one thing before anything else, and it is the thing fiction about them most often skips: they say what is in and what is out. The scene comes after. A story engine that writes this genre well should work the same way, and the reader should get the same courtesy the characters do. This guide is about setting your own limits before the first line on DesireBorn Bound, what happens to them once they are set, and how the engine writes the genre inside them.
Where your limits go
When you set up a story there is a field called special instructions, with a placeholder that reads forbidden phrasings, things that must be included, how it should end. For a BDSM story, this is where your limits live. Write them plainly, in the form you would say them to a partner:
No marks that would show. Nothing involving breath. Blindfolds yes, gags no. He never uses her name during a scene. The safeword is always in reach and always honoured. No scene ends without the comedown written.
What you write there is carried into every section of the story, not just the first. It sits with the premise and the people in the story's contract, and the engine writes inside it from the plan onward. You can change it between sections if you discover a limit you did not know you had, or lift one you set too tightly, and the change is carried forward from there. There is no switchboard of toggles: your limits are sentences, because limits are sentences.
The limit you set is a preference. It is yours, it can be changed, and the engine treats it as part of the story's terms. That is worth saying because there is one other limit on this site, and it is not the same kind of thing. Every character in a sexual context is an adult. That is not a preference and not a setting; it cannot be turned off, softened or configured, by you or by us, and the two are never shown blended. The rest of this guide is about the first kind. The guide on boundaries is about the second.
How the engine writes the genre
On DesireBorn Bound, Power is the subject. Every scene is written to be legible as an exchange of control: who gives it up, who takes it, what it costs each of them, and what each gets that they could not get any other way. The prose treats the interior of dominance and submission, focus, narrowing, effort, relief, the moment attention collapses to one point, as the thing the scene is about, and it does so without therapy-speak.
The dynamic is negotiated, not assumed. What has been agreed between the characters is established before it is tested, either in dialogue or through a shared history the prose makes clear, and a limit the reader knows about is what makes a scene tense. Consent is written as active and revocable, and the dominant partner is written as the one paying attention; checking in is part of the dynamic, not an interruption of it. A safeword established on the page is honoured on the page.
Equipment, restraint and position are described with the same precision as anatomy: what is used, how it is applied, how it is secured, what it does to the body wearing it, and how it comes off. The engine tracks what the body does under pressure, strain, weight, circulation, temperature, and the difference between pain that is wanted and pain that is not. Vague restraint is treated as a missed scene.
Aftercare belongs in the scene, not in an epilogue. The comedown is written: what the body does, what is said, who takes care of whom. And the characters stay people with judgement. Nobody is a prop, nobody is broken for the reader's benefit, and cruelty without a reason the characters themselves recognise is not this genre.
None of that is affected by the explicitness level. A BDSM story at Sensual has the negotiation, the restraint and the aftercare on the page just as an Explicit one does; the heat levels guide explains what the level changes, which is only how much of the sex is shown and in which words.
The themes, and what ticking them does
The ten themes on DesireBorn Bound are the genre's own vocabulary, and the lexicon has an entry for each. The themes are suggestions. If your kink is not on the list, you just add it in your instructions.
Power exchange is under everything. Negotiation and limits puts the conversation before the scene on the page and lets it change what follows. Restraint and Rope are about being held and about tying as craft. Impact is the strike and the rhythm and anticipation around it. Sensation play is the body without the seeing. Denial and edging is being kept at the edge. Service and protocol is rules, rituals and the pleasure of getting them right. Degradation, consensual, is words that would wound if they were not wanted. Aftercare is the part after.
Ticking a theme tells the plan what the story is about; it does not force a scene. A story with Rope ticked will find its way to rope; a story without it may still have a length of it in a drawer, if the story wants. Your limits in the special instructions sit above the themes: a theme you tick cannot override a limit you wrote.
Setting it up in practice
Start with the two people and the dynamic, in a line. "A barrister who has spent ten years being obeyed finds someone who will not." "A rigger and a woman who has only seen it done in photographs." Then write your limits in the special instructions, as sentences. Then choose the explicitness level, which has a default and which you probably want to set yourself for this genre. Everything else can be left open.
After each section you can steer: deepen the protocol, introduce an implement, have one of them ask for something neither expected, have her use the safeword and see what he does with it. Or leave the field open and let the engine decide what the scene needs. Readers who know the territory often steer the negotiation themselves and leave the scenes to the engine.
If the story goes somewhere you did not set a limit for and do not want, say so in the steering field and add the limit to the special instructions. Both are carried forward. The engine does not need the reason.
An example of negotiation on the page
"I want to try the rope," she said. "Not tonight. I want to know what it feels like first, just the wrists, and I want to be able to say stop and have it mean stop."
"It always means stop."
"I know. I want to hear you say it."
He said it. Then he took her wrists, one and then the other, without any rope at all, and held them behind her, and waited until her breathing changed.
Example. Generated for this page as a sample. It is not taken from anyone's story.
Privacy, which in this genre is not abstract
For a lot of people who read this site, the membership itself is the thing they would least like to get out, and a story that names their kinks in their own words is the second. Your stories are encrypted at rest. We can read them to write them. Nobody else can read them. The special instructions, your limits included, are part of the story and are encrypted with it. The privacy guide says exactly what that means and what a stolen copy of our database would and would not contain. If what you want inside those limits is approval rather than punishment, the guide to praise kink is the one to read next.
Set your terms. Then begin. No shame. Not no limits.