Originally, sound are medical instruments used to open and stretch the urethra. I can also use it to check if you are completely healthy down there when you come for your medical examination.
With a little lubricant I will place this stick on your urethra and slowly push it in. Of course I will start with a small one or do you prefer to take the biggest one of 13 mm.
Sounds come in different shapes and sizes. There is also have a urether. This runs on batteries and gives a wonderfull vibrating sensation. It is a sort of vibrator for your urethra. Very stimulating.
But that is not the only thing I can do with it. They are very useful for an electro game. I will put current on it and that is very thrilling.
Are you ready for your urethra examination?