Urethra play is play where objects or instruments are inserted into the urethra or bladder. These scenes can be associated with reinforcing ideas of submission and dominance in the BDSM community. Having an object inserted into the urethra may evoke the inability to control bladder motions in addition to the heightened sensitivity of the area. Urethra play can also be a form of role play within an imagined medical scene.
More About Urethra Play
In urethra play, there generally tend to be two types of instruments that partners use. The first, a sound, comes in a variety of different widths and is inserted into the shaft of the penis. Some enjoy seeing how much the urethra can stretch or how deep the sound can enter the shaft. The second, a catheter, limits bladder control and is intended to reach the bladder. It is important to remember to be safe and comfortable with your partner when practicing urethra play.