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BDSM Limits Explained: Hard Limits vs Soft Limits

12 min read

This article walks through what limits actually mean in BDSM and why they matter so much. By the end, you'll know how to communicate and respect limits — plus what to do if yours get ignored. We've also included a full BDSM limits list to help you map out your own!

What Exactly Are BDSM Limits?

In BDSM, a limit is simply an activity someone doesn't want to engage in. That could mean unprotected penetration, choking, blood play, scat, or even a particular way of being tied up.

Limits can also apply to specific tools, people, body parts, locations, or how an activity gets carried out — maybe rope bondage is off the table but leather cuffs are fine, or paddles are welcome but caning during impact play is not. Playing with someone whose existing partner disapproves of outside BDSM play could also count as a limit.

Related: What is BDSM?

Limits can also govern whether, how, and where a partner is allowed to leave marks on your body — not everyone is comfortable sporting bruises, abrasions, or welts.

Hard vs soft limits – When an activity is entirely off the table (this is where the term originates), that's a hard limit. Soft limits, on the other hand, are things someone approaches cautiously, or would only try under the right circumstances. As trust deepens within a relationship, some soft limits may eventually open up.

Requirement limits – Less commonly discussed, these describe conditions someone needs met before they'll participate in a given activity at all.

Time limits – Different from the rest, a time limit is simply an agreed-upon window for an activity or relationship. These often come up in casual play or specific scenes, or to define how long a submissive's training period will run.

Discover submissive tasks that can be used during training.

Why Limits Matter So Much In BDSM

BDSM limits exist to prevent discomfort or genuine harm, including injury or triggering reactions. It's entirely possible to cross someone's limits by accident if you're not aware of them, which is exactly why discussing limits before a scene or relationship begins matters so much. Limits also tell you upfront which activities are simply off the table.

Some people claim they don't believe in limits at all [1]. Usually this means they trust their partner deeply enough that formal limits or safety protocols like safe words feel unnecessary. Even then, though, there's typically still some built-in way to end things if it ever becomes necessary.

Figuring Out Your Own BDSM Limits

Some limits will feel obvious right away — the hard limits you know you'll never want to try. You might also have a decent sense of your soft limits, the things that give you pause or feel conditional on the right partner or situation.

Figuring out limits gets trickier if you think of yourself as "up for anything." Realistically, most people haven't even heard of every BDSM roleplay idea or activity out there — the list is essentially endless. So there may be limits you don't even know you have yet, simply because you've never encountered the activity in question.

Sometimes the only way to discover a limit is trying something and realizing afterward it's not for you.

Fortunately, plenty of books and websites cover the full range of BDSM activities, including Love Curi! Check out our BDSM for beginners guide for a starting point — you'll find everything from spanking to praise kink to consensual nonconsent! Our complete list of kinks and fetishes is also worth a browse.

BDSM tests and similar tools can help pin down your limits too.

Even though these tests are framed around what interests you, they work just as well in reverse, for identifying what doesn't. It's worth writing your limits down somewhere and using that list to kick off a conversation with your partner.

Which brings us neatly to the next point.

Using A BDSM Checklist To Discover And Share Your Limits

A BDSM checklist is a great tool for both uncovering your own limits and communicating them clearly to a partner. You can build your own or use an existing one.

We've actually put together a BDSM checklist for Love Curi readers. It includes space to mark whether an activity is an interest or a limit, along with comment fields to note your preference as giver, receiver, or both.

Make two copies — one for you, one for your partner — then compare notes to see where your interests align and where your limits fall.

If you're using a simpler Yes/No/Maybe format instead, treat "No" like a hard limit and "Maybe" like a soft one.

Negotiating Around Limits

Negotiation in BDSM happens before entering a scene or relationship, and any time a partner wants to revisit an earlier agreement. Maybe you're finding your scenes aren't quite hitting the mark, and revisiting your limits is one way to fix that. Some negotiation is formalized into a written contract; plenty of people simply talk it through verbally instead.

Related: The Ultimate Guide to BDSM Contracts

Discussing limits is a core part of that process. To keep things efficient, you might focus only on limits relevant to the scene at hand — if you're planning spanking and bondage, there's no real need to mention knife play as a hard limit unless it's somehow on the table.

Read: Bondage for beginners

That said, it's worth flagging limits that could accidentally come up too — sensitivity around feet, say, or anything closely tied to the planned activities.

Multiple conversations – In longer relationships, you'll likely revisit limits more than once, especially as you consider pushing them (more on that shortly). Less negotiation tends to be needed once you and a partner have already had this conversation before [2].

Hard limits don't require negotiation at all — they're simply respected. Soft limits, though, are worth discussing, especially if one partner genuinely loves something that's a soft limit for the other.

When Limits Signal Incompatibility

Limits — hard limits especially — can sometimes reveal genuine incompatibility with a potential partner. This happens when one person's hard limit is something the other considers essential to their kink, sex life, or relationship. Certain kinds of sexual contact, or specific acts like anal sex or anal fingering, are common examples — though as with everything in kink, it's entirely individual.

Recognizing that incompatibility early and moving on is usually the healthiest path. It's not personal, and it doesn't reflect poorly on either person. Everyone has the right to hold out for partners who genuinely want (or don't want) the same things they do.

Think of a hard limit like the open relationship question. A relationship can't really work if one partner insists on staying closed while the other insists on opening it up — compromise there tends to leave both people unhappy.

There's more room for hope, though, when a soft limit is in play and someone's genuinely open to gradually pushing it.

What Does "Pushing" A Limit Actually Mean?

You'll often hear people talk about "pushing" or "stretching" limits. What that means, concretely, is testing how close you can get to a boundary without necessarily crossing it.

You can push against a limit without fully crossing it, or push past it entirely, which crosses the boundary outright.

Some people equate "pushing limits" with ignoring boundaries entirely – For this discussion, we're using "pushing" to mean gradually expanding what someone genuinely likes or can handle — not disregarding a stated boundary. Make sure you and your partner are working from the same definition before this conversation.

Pushing limits happens slowly – It might unfold gradually over the course of a relationship as trust and familiarity build, or within a single scene as a partner relaxes, grows more aroused, and potentially slips into dom or subspace.

So if bondage is a limit for you, you might start with your partner simply instructing you to stay still (mental bondage). Once that feels comfortable, they might try a thread you could easily snap if you struggled, or hold your arms in place with their own. From there, you might work up to cuffs or rope.

This gradual progression isn't unlike building up a workout routine — you increase intensity a little at a time.

Think of it like warming your partner up first – Sometimes a warm-up is exactly what's needed before pushing or stretching becomes possible. Skip that step, and you're not really pushing a boundary — you're just breaking through it, which can go badly wrong.

Always talk first, and prioritize safety – Never push a limit without discussing it with your partner beforehand. Even with their agreement to stretch a limit, proceed carefully. And if you're the one being pushed, you need real trust that your partner is putting your safety first.

These BDSM rules can help guide that.

Lean on a safe word – A safe word is especially valuable when pushing boundaries, helping ensure the experience stays positive. Successfully pushing past a limit can leave you feeling exhilarated, proud, and more connected to your partner!

Aftercare matters here too – Even with everything done right, pushing limits can still land badly sometimes. Talking it through afterward helps ensure your partner avoids crossing that same line again. That's exactly why aftercare for your partner matters so much.

Do Limits Stay Fixed Over Time?

As you explore more of yourself, your relationship, and kink in general, limits often loosen or shift entirely. You might find yourself drawn to more activities, or more intense ones, as you learn your own strengths and desires and trust with your partner deepens.

Pushing limits can also open the door to new kinky ideas altogether. That said, soft limits shouldn't be treated as automatically negotiable, and no one should enter a relationship assuming they'll successfully push past someone else's limits.

When Your Limits Aren't Respected

If you haven't yet entered a scene or relationship, you're always free to simply walk away.

If a limit gets crossed mid-scene, use your safe word or stop mechanism to halt play immediately if you're able to.

You can end the session entirely and move into aftercare if that's what you need. Alternatively, if your boundaries have been genuinely crossed, you may need to separate from that person for your own safety, and potentially involve authorities.

Hopefully it never reaches that point, and all you need is some time and aftercare instead.

In some cases, adjustments can be made mid-scene and play can continue — but you're never obligated to keep going.

Worth noting: you don't have to explain why you used your safe word. It's completely valid to use it at any point, even if your partner hasn't technically crossed a stated limit.

You're not required to discuss a crossed or ignored limit in the moment if you're not up for it. Still, it's worth revisiting later so your partner understands what went wrong and how seriously to treat it, even if you never play with that limit again.

Common Hard Limits

Certain things show up repeatedly as hard limits — activities most people categorically avoid. None of these will likely surprise you.

  • Children
  • Animals
  • Scat
  • Blood
  • Drugs

That said, genuinely anything can be a hard limit for a given person, even things that don't strike you as extreme.

Common Soft Limits

Common soft limits include things like being photographed (creating evidence of the activity or revealing identity) and anal penetration — both good examples of things that might open up with the right partner or circumstances.

More Examples Of BDSM Limits

Here's a broader sample list to help you pin down your own.

Once again, anything can qualify as a soft limit, no matter how mild or extreme it might sound to someone else — and it doesn't need to seem inherently kinky or sexual at all.

BDSM Limits And Broader Safety Philosophies

Whether talking hard or soft limits, both fit comfortably within the various BDSM safety philosophies people use. SSC — safe, sane, and consensual — is probably the most familiar, centered on entering every BDSM interaction with full consent, a clear mind, and as much safety as possible. Discussing and honoring limits fits right into that framework.

Others lean toward different approaches. RACK, for instance, stands for risk-aware consensual kink, emphasizing that all BDSM carries some inherent risk — even mild activities — and that minimizing that risk is the goal.

Then there's PRICK, which stands for personal responsibility, informed, consensual kink. Under this model, everyone bears responsibility for their own safety, which means knowing your limits and communicating them clearly. It's equally your responsibility to speak up if a partner crosses or pushes past a limit, to prevent it happening again [3]. As the dominant partner, you also carry responsibility for your partner's safety, whether or not you're actively pushing their limits.

Edgeplay – Approaching the outer edge of safe, consensual kink by pushing boundaries is what's known as edgeplay [4].

With all this in mind, you should have a much clearer sense of how BDSM limits protect both you and your partner. Hopefully our checklist and soft-limit examples have helped clarify a few things if you weren't sure where your own limits sit.

March 24, 2023

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