prostate penetration

When the prostate (the male gland at the neck of the bladder, around the urethra) is explicitly shown in some sort of internal view as being crossed by a penetrating object and stimulated from the inside.

Unlike prostate stimulation, which involves pressing against the prostate by accessing it anally (whether as anal penetration or anal vore), prostate penetration is almost exclusively urethral, and occasionally done by reverse cock fucking.

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