Excellent idea and diabolical device ... I would have loved to try it on my slave.... immagine, there has been a period in my life, after divorce, when I was living with a lady, who showed to have very strong domination phantasies towards other women. So I slowly introduced her to the fact that I had this slave (a married woman of the same age, actually same year and month, both virgos) and she accepted the idea the share the pet with me, what we did with a lot of fun.
The nice thing was that we frequented the slave also in our vanilla life and my partner found this particularly exciting. So we organized some party at the house where we lived (a large country house ) and invited her and her husband among many other persons. The fun was that she had to perform whatever we (especially Saby) asked her.... Saby would call her for help in the kitchen and she had to bare herself and show she had no underwear, as required, while her husband was chatting outside with other guests, all unaware of these events.
She had also to give a blowjob to my brother (who knew about everything), in the shadows behind the barn, while we kept her husband busy and later Saby enjoyed humiliating her asking my brother if he was satisfied of her performance .....
Now immagine if we had one of those remotecontrolled TENS chastity belts on her ..... what a fun, what a fun .... sigh ...
Well I can add a pic of Saby humiliating caroline