The prostate is a walnut sized gland that surrounds the urethra, just below the bladder. Some call it the male G-spot.
The main function is to supply fluid for spermcells to travel during ejaculation. The prostate contributes about 30% of the of the seminal fluid volume.
At birth the prostate is very small, but it begins to grow dramatically at puberty.
 Massaging the prostate can feel good, but for most men not enough to climax. Combining it with penile stimulation can be very exciting, making orgasm more powerful.

How to massage the prostate gland?