It makes sense that ejaculation is there to aid the reproductive process, and that ideally, the female ejaculate is there to assist the appearance of the male ejaculate inside the vagina. If the sperm are able to swim through additional fluid that is of the right temperature, viscosity, and pH, then they would be more likely to reach the unfertilized egg and the end of the biological road.
One recent study wanted to know if female ejaculation was indeed an act of “hyper lubrication”, so they recruited seven women who self-reportedly produced enough ejaculation per orgasm that they could fill up a sizeable glass, enough to cause staining on the bed sheets. After providing the researchers with a urine sample, and emptying their bladders as they did so, they were then asked to go into an ultrasound machine and stimulate themselves until they orgasmed – with or without the help of a partner.
The amount of fluids produced per female orgasm varies from entire glasses of liquid to none at all. vvvita/Shutterstock
A sample of each of their ejaculations were taken, before the team looked through the ultrasound images. To their surprise, despite the bladder being vacant of any urine before they orgasmed, it began to rapidly fill up with fluid just before they orgasmed, suggesting that, for these women, squirting is essentially a massive release of pee.
The subsequent chemical analysis of the fluid samples confirmed that two of these women did ejaculate fluid that was almost entirely urine. However, the other five, despite also producing mostly urine, also showed traces of prostate-specific antigen (PSA) in their orgasmic produce. PSA is a substance that helps sperm swim, and it is actually also found in male ejaculate. It’s produced in the prostate gland in men, but in women, it is forged in the Skene glands, and it sometimes resembles a milky-white liquid.
The researchers came to the conclusion that there are two types of female ejaculation: urine dominant and PSA-infused, with the latter being designated as the “true” ejaculate, in that it contains a substance designed to assist the act of reproduction. Either version appeared to be equally as enjoyable to the subject, so in terms of sexual pleasure, it’s irrelevant which one occurs, or even if it occurs at all, of course.
There is a contentious debate as to whether or not all women can produce ejaculate when they orgasm, with some gynecologists arguing that they can. This particular matter is far from settled, but it appears as if the chemistry of the ejaculate, for all intents and purposes, is.