World famous Dr. Ruth
on the G-spot

Most women have a sensitive area in the vagina that can give them these strong orgasms and cause some sort of liquid to spurt [female ejaculation or squirting] from their vagina.

DrRuth.com

Sexpert, Violet Blue's thoughts on the G-spot:

Plainly put, the g-spot is an area just inside your vagina, that when you're turned on, might feel really good to rub or massage.

It might even feel so good you have an orgasm from that type of stimulation alone. About 1-2 inches inside and on the front (bellybutton side) of your vaginal canal is where urine leaves your body -- your urethra.

The urethra is a little channel between your bladder and the outside world, and it's surrounded with erectile tissue (like in a penis) and about 40 glands and ducts that all respond pleasurably to stimulation.

... kisses ... tinynibbles.com