the procedure is known as prostate milking or massage.

a finger or massager is inserted into the arse and gently rubs over the small lump located between the anus and the perineum.

after 10 minutes this stimulation will begin to express the fluid. the massaging is pleasurable like gentle finger-fucking.

when the fluid moves, a sensation like a slow pissing in the urethra is felt, again, not unpleasant, it is unfamiliar at first.

eventually, the fluid fllows out and can be collected or disposed of.

of even more interest, is forced mechanical ejaculation using an electroejaculator similar to those used in animal husbandry on goats and bulls.

care must be taken when using on humans!

although not painful, using this device on the slave by-passes the responses that bring about orgasmic ejaculation and avoids any possibility of the procedure feeling sexual or pleasurable to the slave.

it is simply a clinical procedure performed to extract his accumulated fluids in as efficient and dispassionate a manner as possible.

there is another device on the market specifically designed to massage the prostate during sleep, for example.

alternatively, a suitably shaped butt plug worn continuously will also have the desired effect.

chastisized boyz often report that this is pleasurable and results in producing quantities of prostate fluid that keeps both the gland exercised and flushes the ducts.

further reading :

prostate milking technique

avoiding prostate cancer

prostate milking

prostate milking device

aspects of queer submission thru chastity

altarboy - site about chastity devices, experiences

lock-me up - another chastity belt site