All guys know their dikk and testicles very well, but many are unfamiliar with the prostate gland, which sits under your bladder and surrounds your urethra.
The prostate gland is the male "G-spot". When it is stimulated or massaged, it can produce a very intense orgasm. Stimulating the dikk and prostate simultaneously can send a man into the upper stratosphere of orgasmic delight.
It is common knowledge by your doctor that ejaculating frequently is good for your seksual organs. What most doctors won't tell you is that stimulating your prostate is good for it, and all of this taken together is good for men.
The above is personal opinion only and is NOT medical advice from a physician; it is provided for your entertainment.