I'm autistic and I've found that kink, specifically protocol-based submission, helps me feel grounded and safe. Is this a documented thing or am I imagining a connection?

The connection you have identified is real and increasingly well-documented in community discussions, though formal research is still catching up. The features of protocol-based D/s that many autistic practitioners describe finding valuable are: explicit rules with clear expectations, communication that is direct and specific rather than relying on social inference, predictable structures that reduce decision fatigue, and defined contexts where social performance expectations are replaced by agreed protocols.

Many autistic people report difficulty with the ambiguity of mainstream social interaction: reading unspoken expectations, navigating unstated rules, and anticipating other people's reactions without clear signals. A well-structured D/s dynamic explicitly removes much of that ambiguity. The rules are stated. The expectations are negotiated. The feedback is direct.

The grounding effect you describe is also consistent with what many autistic people find helpful more broadly: clear sensory input, defined physical space, and specific routines that anchor them. Impact play and sensation play serve a similar function for some autistic kinksters, providing clear, defined sensory input that organises rather than overwhelms.

There are active online communities specifically for autistic kinksters, and these spaces tend to have particularly thoughtful conversations about how BDSM intersects with neurodivergent needs, including practical advice about negotiation, communication, and managing scenes in ways that work with rather than against autistic processing.

Your observation is accurate, and you are far from alone in it.