Key Sound Multiple Orgasm (KSMO) protocol is a training method developed by Jack Johnston

: Making specific pleasurable sounds (like deep moans) is used to stimulate the amygdala. Proponents claim this causes the amygdala to "click forward," activating more of the brain's frontal lobes and intensifying pleasure without reaching a point of no return.

Central to many modern wellness protocols is the Vagus nerve. As a primary component of the parasympathetic nervous system, it plays a crucial role in regulating the body's transition between states of high arousal and relaxation. Research suggests that sound and vibration can directly influence this nerve.

The phrase "protocolrarl" seems to be a typo for "protocol."

With the physical stimulation paused, use a gentle, unforced, relaxed Key Sound as you exhale. This sound amplifies the existing arousal automatically without needing additional physical contact. The vocal vibration acts as a catalyst, expanding the sensation.