When a girl “comes” (or “cums”), she is having an orgasm, the peak of sexual arousal where tension built up in the body releases in a wave of pleasurable muscle contractions and a flood of feel-good brain chemicals. For some women, orgasm also involves the release of fluid, which is sometimes called female ejaculation or squirting. These are normal physical responses, and they can vary widely from person to person and even from one experience to the next.
What Happens in the Body During Orgasm
The most defining physical event is a series of rhythmic muscle contractions in the pelvic floor, the group of muscles that spans the base of the pelvis. These contractions happen in both the vaginal and anal muscles simultaneously, and they follow a predictable rhythm: the first few are close together, then gradually space out by roughly a tenth of a second between each one. The force of the contractions typically starts low, builds to a peak about halfway through, then tapers off.
Not every orgasm follows the same pattern. Research on pelvic contractions has identified distinct types. Some women experience only a neat series of regular contractions lasting a few seconds. Others have that initial regular series followed by additional, irregular contractions that extend the experience. A smaller number of women orgasm without measurable regular contractions at all, which suggests the subjective feeling of orgasm doesn’t always line up with one specific muscular pattern.
Beyond the pelvic floor, the whole body responds. Heart rate and blood pressure rise, breathing quickens, and muscles throughout the body may tense and then relax. Some women experience flushing across the chest and face.
How Long It Lasts
The old textbook answer was that female orgasms last 3 to 15 seconds, but that turns out to be only part of the picture. Physiological studies have recorded orgasms lasting anywhere from 20 seconds to 2 minutes. In one survey of 121 women, about 40% estimated their orgasms lasted 30 to 60 seconds or longer. A separate study found that roughly half of the women sampled experienced predominantly long orgasms. So while some orgasms are brief, many women regularly experience ones that last well beyond a few seconds.
What Happens in the Brain
Orgasm lights up an unusually wide network of brain regions all at once. Brain imaging studies show activation in areas responsible for reward and pleasure, sensory processing, movement, memory, and emotional regulation. The brain’s reward circuitry fires intensely, which is why orgasm feels so good. At the same time, areas involved in processing fear and emotional memory activate, and the hypothalamus triggers a hormonal cascade.
One key hormone released during orgasm is oxytocin, sometimes called the “bonding hormone” because it plays a role in social connection and trust. Plasma levels of oxytocin rise at orgasm in both women and men. Dopamine, the brain’s primary reward chemical, also surges, reinforcing the pleasurable sensation. After orgasm, prolactin levels rise, which contributes to the feeling of satisfaction and relaxation that follows.
How Orgasm Gets Triggered
The clitoris and the vagina send signals to the brain through different nerve pathways, which is why stimulation of each area can feel quite different. The clitoris has a dense concentration of nerve endings. Sensory signals travel from the clitoral skin through the pudendal nerve to the spinal cord and up to the brain. The vagina and uterus, on the other hand, are primarily served by the pelvic nerve, with additional connections through the hypogastric nerve.
Because these pathways are distinct, clitoral and vaginal stimulation activate overlapping but not identical brain responses. Most women find clitoral stimulation the most reliable path to orgasm, though many experience orgasm from vaginal stimulation, a combination of both, or other types of stimulation entirely. There is no single “correct” way for orgasm to happen.
Fluid Release: Ejaculation vs. Squirting
Some women release fluid during orgasm or intense arousal, and this is often what people mean when they talk about a girl “cumming” in a visible way. There are actually two different phenomena that tend to get lumped together, and they come from different sources in the body.
Female ejaculation is the release of a small amount of thick, whitish fluid, typically just a few milliliters. This fluid comes from the Skene’s glands (sometimes called the female prostate), which are small glands located near the urethra. Biochemically, this fluid is distinct from urine. It contains high concentrations of proteins also found in male prostate fluid, along with fructose and glucose, while having low levels of creatinine, a waste product concentrated in urine. In other words, it’s chemically much closer to a component of male ejaculate than it is to pee.
Squirting is a larger-volume release, sometimes exceeding 150 milliliters. Ultrasound studies that monitored the bladder before and after squirting found that the bladder fills rapidly during arousal and empties during the squirting event. Biochemical analysis shows this fluid is primarily dilute urine, though it often contains small amounts of the same prostate-like secretions found in female ejaculate. So squirting is a real, involuntary physical response, but it originates mostly from the bladder rather than from reproductive glands.
The total volume of fluid women release ranges anywhere from less than a milliliter to over 150 milliliters. Many women never visibly ejaculate or squirt, and that is equally normal. The presence or absence of fluid has nothing to do with the intensity of pleasure or whether an orgasm “really” happened.
Why It Varies So Much
One of the most important things to understand is that orgasm looks and feels different for every woman. Some are quiet and subtle, others are intense and full-body. Some involve visible fluid, most don’t. Some happen quickly, others take sustained stimulation over many minutes. Arousal level, comfort, stress, hormonal cycles, and the type of stimulation all play a role. Even for the same person, orgasms can feel noticeably different from one time to the next.
Pornography often presents a narrow, exaggerated version of what female orgasm looks like, which can create unrealistic expectations. In reality, there is no single way orgasm is “supposed” to look or sound. The physical process is consistent at a basic level (brain activation, muscle contractions, hormone release), but the subjective experience and outward expression are enormously varied.