G-spot is the nickname for the Grafenberg spot,
named after the guy who noted its erotic significance in the 1950's.
The G-spot in women is analogous to the prostate in men (which seems
to play a more direct role in sex and procreation).
The G-spot is a gland located behind the pubic bone and around
the urethra. It can be massaged or stimulated by reaching up about
two finger joints distance on the upper surface of the vagina. If
already aroused, some women will find that stimulation of this area
leads to an intense orgasm which may be of a different quality from
a clitoral orgasm. Stimulation of the spot produces a variety of
initial feelings: discomfort, feeling the need to urinate, or a
pleasurable feeling. With additional stroking the area may begin
to swell and the sensations may become more pleasureable. Continuing
stimulation may produce an intense orgasm. Like the prostate, the
G-spot can produce an fluid like semen (but not as viscous) which
may be released on orgasm- even known to "squirt" a couple
For comparison, the prostate in men is also located behind the
pubic bone and around the urethra. The two ejaculatory ducts also
end here (bringing sperm from the testis via vas deferens). The
prostate can be reached through the anus (as in Doctors performing
a prostate exam). Continued stimulation of the prostate may produce
intense orgasms in men. The prostate is the glad which produces
most of the seminal fluid that is ejaculated (other than the sperm
in the semen).