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A urethral sounding involves inserting a (usually) metal rod into… well… your urethral opening (urethra). It may sound scary, but it’s a very common medical procedure. And, if it’s medical, or involves a hole in the body, you can bet the kink world is involved.
how?
While the normal sound is smooth and sometimes may have a curve at the end, the next step is the penis plug.
What is a penis plug?
Imagine a smooth rod with a ball or horn on the end… these are penis plugs. They can add extra stimulation to penetration, masturbation, or whatever play style you prefer. They’re also a better option for those who worry about “losing” their penis.
What styles/designs are available?
Besides the flared base (which is safer), there are many options…
Texture – Irritating bumps or ridges
Rod with ring – Easy to retract
Hollow Rod – Convenient urination
Ring or lock – If you want to add a chastity element
Vibrator – External vibrators around the head of the penis or on the tip
Decorative – Jewelry or other beautiful things at the end of the staff
Inflatable – Shell can be inflated to increase expansion


What are they made of?
While many sex toys come in a variety of material options, plugs only have two options.
Medical grade stainless steel – adds to the feel of medical play, harder and easier to manipulate, but also easier to hurt yourself.
Medical grade silicone – softer, less chance of puncturing soft tissue, but also a little more difficult to handle/insert.
P.S. There are also titanium options. They are a little more expensive but are also safe. Just make sure you don’t get a knockoff or a hybrid.

Both of these are non-porous, easy to clean and sterilize, and not harmful to the body (as long as you stick with higher quality materials – not “nickel plated” or “silicone blends”). Also, some people might recommend using a thermometer or knitting needles…
No…
It just doesn’t work.
Stick with products that were actually made for the show.
Do you have anything else to add? Please share in the comments!