My .02 for what its worth.
Please, any of the physicians here, correct me if I'm wrong but the amount I've seen ladies squirting on porn and in person is pretty substantial. I mean its not a drizzle. I've taken human anatomy and physiology, and I can't think of a single organ, gland or even collection of glands in the human anatomy down there that can produce that much liquid, except the bladder. I mean it takes hours just to produce that much urine. I think it's highly unlikely there's a gland or another organ that can either produce that much liquid in the time of arousal or store that much beforehand without making it into a single anatomy textbook over the years.
With all that being said, I still think its HOT when a lady squirts, regardless where it comes from.