The fluids you may encounter in the female vulva:
1) vaginal lubrication - Consistency of watery mucus from Bartholin's glands
2) Skene gland discharge - Squirt
Vaginal ejaculation begins in the paraurethral Skene’s glands, named after the 19th century Scottish gynecologist Alexander Skene. Skene’s glands lay directly beside the urethra, below the ****oris and above the opening of the vagina. Skene’s glands serve as secretory organs and function identically to the prostate, including the emission of prostate-specific antigen (PSA) and prostatic acid phosphatase (PAP), which are often found at elevated levels in people with prostate cancer.
Structurally, Skene’s glands are a smaller twin of the prostate gland and function in much the same way. Some people’s Skene’s glands are more developed than others, which can affect whether or not an external opening to the glands is present, if the glands are able to secrete fluid and the amount of fluid able to be secreted. People who experience vaginal ejaculation (perhaps more accurately called “Skene’s gland ejaculation”) have developed Skene’s glands that have direct external openings or openings into the urethra, have the ability to collect and ejaculate prostate fluid, and can become stimulated during sexual activity to release during orgasm. Contrary to popular belief, there is no evidence that the Skene’s glands are in any way associated with the G-spot or the intense sexual pleasure that can accompany stimulation of the prostate gland. When a person with developed Skene’s glands becomes aroused, prostate fluid collects in the glands, which can then contract during orgasm and cause ejaculation.
There’s a popular myth — it seems to be particularly rampant in fratboy circles — that vaginal ejaculate is nothing more than pee. The myth became so popular, it seems, that academia finally picked up on it and published an article in the Journal of Sexual Medicine titled “Female ejaculation orgasm vs. coital incontinence: a systematic review.”
Published in 2013, the article successfully informs its audience of literally everything anyone ever needed to know about vaginal ejaculation, all in the span of 10 pages. As much as it pains me to say this, the frat myth about pee is not completely incorrect.
The tidal waves of clear liquid produced by the pornographic phenomenon of “squirting” or “gushing” are indeed made up of a solution that contains urine. However, the fluid also contains prostate fluid and vaginal discharge, and the emission from the bladder is not your traditional yellow pee. Instead, prostate fluid, vaginal discharge and vestiges of urine merge to form a new ejaculated solution, which contains less urea, uric acid and creatine than urine, but more sodium and potassium than prostate fluid. Thus, vaginal ejaculate consists of what the article calls “an altered form of urine,” which combines emissions from the Skene’s glands, the bladder and the vagina itself. Typically, the Skene’s glands secrete up to 50 milliliters of fluid, whereas the liquid from “squirting” can reach volumes of up to 900 milliliters. Furthermore, chemical analysis of the ejaculated liquid reveals that PSA and PAP secretions from the Skene’s glands are present in the solution, which further disproves the theory that the ejaculate is pure urine.
3) urine from the Bladder that is expressed as the abdominal muscles contract during orgasm and force liquid out through an already constricted urethra sphincter.