http://www.vivehypnosis.de/?p=3236
You need to wear a string around your wrist for this. This string
will become your silent submissive string. Whenever you wear it you will
find yourself unable to speak, except when asked something by a person
dominant to you. And even if asked you can only reply with “yes mam /
sir” or “no mam / sir”, although you can change the mam / sir to any
title you use for your dominant. Only if a dominant specifically asks
you for an extensive answer you will be able to talk freely to answer
them. You will also find that while being trapped in your own mind and
unable to communicate your thoughts, you will slowly slip deeper and
deeper into a state of subspace. And the helplessness of being unable to
talk will continuously deepen this state.
There are two versions of this file, the full version uses a
punishment trigger that causes you to feel pain if you talk, the cut
version makes it just unable to talk, though you will be able to mumble
incomprehensively.