It happens that way for me, usually during oral or manual stimulation, getting very wet and at the moment before orgasm I will gush. We do have to have a towel handy because of the "wet spot."

The whole area between my clit to just inside the vaginal opening is very sensitive to touch, all it takes, really, is a light, tickling strokes to start it happening. I even masturbated in front of a mirror once, to see how it works. Just before I orgasmed there was a flood of liquid that came from my vagina.

Have also heard it referred to as female ejaculate or female semen in older texts.