Just a basic guide line is all we should need. The desire to create should hold the most weight.
An idea, the spark.
With a particular feeling in the air. The mood is set with lighting and sound.
Both experiences are enhanced with anticipation. What better way to have anticipation if you throw out the script.
if you use breath with intention you can create mood with energy.
Your partner is elevated or excited for the experience and their breath has quickened. A bit of eye contact and a brush on the skin you can pull them to your pace. As your breath unites and becomes rhythmic.
A touch of tongue, a wisp of a finger. A touch of the flogger.