Istem
The Istem brand produces sterile, water-based medical lubricants for urethral, rectal and vaginal use. Istem lubricants prevent irritation and damage to the mucous membrane during medical procedures and are also perfect for sounding. The antiseptic effect of Istem products reduces the risk of infection, among other things. The lubricant syringes are packed in sterile packaging and are contained in a pre-filled, latex-free disposable syringe with a smooth tip. A number of Istem products contain lidocaine in the gel, which ensures the painless insertion of medical instruments or dilators and provides a local anesthetic effect.
What is sounding?
Sounding is part of BDSM. In sounding, you stimulate your urethra by penetrating it with a dilator (thin silicone or metal IUD), which is an exciting feeling for some men. You can even reach the prostate this way, if you go deep enough. Part of the experience of sounding is about the actual feeling, but the dominant's ultimate interest in the penis certainly plays a role in this sexual act. Just like seeing the dilator disappear in the penis. The combination can be quite tingly and lead to an orgasm.