Mouth-worn urine funnel gag (watersports)

A device used in BDSM to divide the roles of master and slave, made up of a V shaped trough that rests against the face and a plug held in the mouth. It is molded from medical grade silicone, which makes it very flexible and thick. A strap around the back of the head holds it on, and the length adjusts to the size of the head.

How the trough and the plug connect

The V shaped trough catches what runs down and gathers it toward the center. What collects there passes through the hollow silicone plug and down into the mouth. The plug detaches, so it can be swapped for another of the four that are included. The person wearing it can bite down on the plug to stop the flow and take a break.

A strap sized to the head

The strap fastens around the back of the crown, so nobody has to hold the piece in place by hand. It adjusts in length, so it fits heads from small to large. The trough itself is made wide enough for two people to use at once.

Hygiene comes first

The real problem in this kind of play is not the sensation, it is hygiene. Urine is not sterile and can pass on urinary tract infections or sexually transmitted infections. Check each other's health status and any medication in advance, and do not use it if there are sores or ulcers in the mouth. Afterward, rinse the mouth with water several times right away and take the device apart to wash it.

What to know before you use it

Someone with the plug in the mouth cannot speak, so a hand signal has to be agreed in advance. A common method is to have them hold an object and to stop immediately if they drop it. Do not use it with a blocked nose, since breathing will be short, and avoid it after drinking or on a full stomach, since vomiting could block the airway. The supplier presents it as suited to beginners and to people in training, but in practice it is an item for partners who already have hygiene and trust in place.