Whilst the "submissive" partner might be expected at a superficial level to
comply with whatever their "dominant" desires, in fact both partners to the
arrangement are more likely to make detailed preparations and arrive at understandings to ensure both receive the "treatment" or outcomes they desire. Within the BDSM community, this type of preparation is known as "setting limits", and activities are often referred to as needing to be "SSC" - "safe, sane and
consensual". ( Wikipedia )
