Voyeurism
Voyeurism in BDSM is the enjoyment of watching others engage in sexual or kink activities. The critical distinction from its non-consensual counterpart is consent. In a BDSM context, the people being watched know they are being observed and have agreed to it. Without that agreement, it is not voyeurism as a kink practice. It is a violation.
Voyeurism and exhibitionism are natural partners. One person wants to be watched; another wants to watch. This pairing shows up constantly at BDSM events and dungeons where scenes happen in open or semi-public spaces. The exhibitionist gets arousal or satisfaction from performing, and the voyeur gets it from observing. Both parties benefit from the exchange.
At dungeons and play parties, voyeurism is built into the environment. Scenes often happen in shared rooms where other attendees can observe. This is expected and normal. Most dungeon rules establish a framework for how watching works: maintain a respectful distance, stay quiet, do not touch anyone in the scene, and do not interrupt. If a scene is happening in a private or curtained-off area, that is a clear signal that watching is not invited.
Some people experience voyeurism as a specific turn-on, while for others it is more of an appreciation. Watching a skilled rigger work rope can be captivating in the same way watching any skilled practitioner is interesting. The line between casual observation and active voyeurism is personal.
Outside of events, voyeurism can be part of private play. A couple might invite a trusted third person to watch a scene. Partners might record themselves with mutual consent. Some people enjoy watching their partner with another person. In every version, consent from all parties is not optional.
Voyeurism does not require physical proximity. Online spaces, consensual video sharing, and cam-based interactions all fall under the umbrella when everyone involved has given informed agreement. The medium changes, but the principle stays the same: watching is only a kink when everyone knows and consents.