More info on Squirting:
Nature of fluid
Critics of the concept have maintained that ejaculation is merely either stress incontinence or [ame="http://en.wikipedia.org/wiki/Vaginal_lubrication"]vaginal lubrication[/ame]. Research in this area has concentrated almost exclusively on attempts to prove that it is not urine
[53][71] measuring substances such as [ame="http://en.wikipedia.org/wiki/Urea"]urea[/ame], [ame="http://en.wikipedia.org/wiki/Creatinine"]creatinine[/ame], [ame="http://en.wikipedia.org/wiki/Prostatic_acid_phosphatase"]prostatic acid phosphatase[/ame] (PAP), [ame="http://en.wikipedia.org/wiki/Prostate_specific_antigen"]prostate specific antigen[/ame] (PSA),
[6] [ame="http://en.wikipedia.org/wiki/Glucose"]glucose[/ame] and [ame="http://en.wikipedia.org/wiki/Fructose"]fructose[/ame]
[72] levels. Early work was contradictory, for instance the initial study on one woman by Addiego and colleagues reported in 1981,
[41] could not be confirmed in a subsequent study on 11 women in 1983,
[73] but were confirmed in another 7 women in 1984.
[74] But in 1985 a different group studied 27 women, and found only urine,
[56] suggesting that results depend critically on the methods used.
A 2007 study on two women, involved ultrasound, endoscopic and biochemical analysis of fluid. The ejaculate was compared to pre-orgasmic urine from the same woman, and also to published data on male ejaculate. In both women, higher levels of PSA, PAP, glucose but lower levels of creatinine were found in the ejaculate. PSA levels were comparable to those in males.
[5]