Master Seth
  BDSM lifestyle since 1968 

The Clitoris, A-Spot, G-Spot and U-Spot, How Squirting Climaxes Work and MORE.   (Partial reference)

With illustrations and additional and assorted notes by Master Seth, from my classes on female anatomy.
This page is required pre-reading for people in my classes on "Female Anatomy". 

In addition to the vaginal passage and its surrounding labia, the female genitals also boast at least five sexual 'Hot Spots'. These are small zones of heightened erotic sensitivity, the stimulation of which during the mating act helps to bring the female nearer to an orgasmic condition. They are: the Clitoris, the U-spot, the G-spot, the A-spot and Skene's glands. The first two are outside the vagina, the second three are inside it:

The Clitoris.

This is the best known of the female genital hot spots, located at the top of the vulva, where the inner labia join at their upper ends. The visible part is the small, nipple-sized, female equivalent of the tip of the male penis, and is partially covered by a protective hood. Essentially it is a bundle of 8000 nerve fibers, making it the most sensitive spot on the entire female body. It is purely sexual in function and becomes enlarged (longer, more swollen, more erect) and even more sensitive during copulation. During foreplay it is often stimulated directly by touch, and many women who do not easily reach orgasm purely from vaginal stimulation find it easier to climax from oral, digital, or mechanical stimulation of the clitoris.

An Australian surgeon recently reported that the clitoris is larger than previously thought, much of it being hidden beneath the surface. The part that is visible is simply its tip, the rest of its length – its shaft – lying beneath the surface and extending down to surround the vaginal opening. This means that, during pelvic thrusting, its concealed part will be massaged vigorously by the movements of the inserted penis. There will therefore always be some degree of clitoral stimulation, even when the tip is not touched directly. The clitoral shaft is, however, less sensitive than the exposed tip, so that direct contact with the tip will always have a greater impact on female arousal. Some women claim that, by employing a rhythmic, downward roll of the pelvis, they can create a direct friction on the clitoris tip while the male is making pelvic thrusts, and can in this way magnify their arousal, but this requires a more dominant role for the female, which is not always accepted by the male.

The U-Spot.

This is a small patch of sensitive erectile tissue located just above and on either side of the urethral opening. It is absent just below the urethra, in the small area between the urethra and the vagina. Less well known than the clitoris, its erotic potential was only recently investigated by American clinical research workers. They found that if this region was gently caressed, with the finger, the tongue, or the tip of the penis, there was an unexpectedly powerful erotic response.

*Start of Seth’s notes:

It should be noted, that the use of the U-Spot can be helpful when the Clit has become tooo sensitive to touch directly. This is best done by massaging with two fingers sliding vertically up and down on each side of the clit, with plenty of lubrication.

In this manner climaxes can be continued, even though the clit has become too sensitive.

As noted here elsewhere, by rotating between the various areas,, climaxes can be continued, often for very long periods of time,,,

For some each climax can become like going up a ladder, which each becoming more powerful than the last.

This is a direction which can result in a woman passing out from the intensity. Sometimes these can continue for up to a half hour, or more.

However, this does not hold a candle to the 4th of July party Event, when I had a lady climaxing for 15 minutes, on Verbal Command, followed by 45 minutes on Mental Command, with only eye contact. There had never been any physical contact with her, then or ever before. Read her Documentation in my Writings on my Fetlife Profile.

The Wonderful World of Squirting Climaxes

Skene's gland, or para-urethral gland:

NOTE: This Skene's Gland has now been renamed the Female Prostrate.
(update 6/11/2013)

Seth's Notes:
The above picture, does not include a larger area location of this Gland.

For a really new, better (and copyrighted) picture of the Skene's Gland, which is now been renamed the Female Prostrate, go to this link to see it. 

Here, below, is a copy of the picture shown earlier regarding the G-spot, but now there is an added line indicating the location of the Skene's Gland, or Female Prostate, which surrounds the lower end of the Urethra.

While on the subject of the female urethra, it is important to mention 'female ejaculation'.

In the male, the urethral tube delivers both urine and seminal fluid containing sperm. In the female it is usually believed that it delivers only urine, but
this is not the case. When there is an unusually powerful orgasm, some females may emit a liquid from their urethral openings that is not urine.

There are specialized glands surrounding the urethral tube, called Skene's glands, or para-urethral glands, similar to the male's prostate, and under extreme stimulation they produce an alkaline liquid that is chemically similar to male seminal fluid. Women who experience ejaculation (which ranges in quantity from a few drops to a few tablespoonfuls), sometimes imagine that the extreme muscular exertions of their climactic moments have forced them into involuntary urination, but this is simply because they do not understand their own physiology. Nor, incidentally, did some medical authorities, who insisted that ejaculating women were suffering from 'urinary stress incontinence' and suggested operations to cure it. (One man recently sued for divorce because he believed that his wife was urinating on him, such is the ignorance of female genital activity.)

It is not clear what the value of this female ejaculation can be, as its occurrence is clearly a little late to act as an aid to lubrication. Vaginal lubrication is, in fact, carried out by the walls of the vagina themselves, which rapidly become covered in a liquid film when female sexual arousal first begins.

Seth's notes:
These Skene's Glands are much like a sponge, and while in stages of sexual stimulation and excitement, these sponges actually fill with what seems to be clear water,, and after a period of sexual excitement, they be come engorged with liquid. While the above write up speaks of “a few drops to a few tablespoonfuls”, it is my experience that with proper stimulation after a long enough period of sexual stimulation and excitement, MUCH larger amounts of liquid can occur with a squirting climax. I have had to put plastic liners on my mattresses in order to handle the flood with some women, and generally put a large bath towel under them when I know they are prone to this heavy flow from the Skene's Gland. In one of my classes on female anatomy, a demo lady who I had on a OB-GYN table, with foot stirrups, had such a extensive flow, that we had to clean out the drawer on the end of the table, which had been left open, as well as the floor for three feet or more beyond the end of the OB-GYN table. I had the audience sitting up close to see these drawings on my computer screen, and their comments were: "It was like sitting on the front row at a Sea World Show", (when the large fish are splashing water on the front rows of viewers).

This same demo lady has often commented that she feels very thirsty afterwards, do to the dehydration effect of her large Squirting Climax.

So, the whole point here is,, allow enough time for these sponges to fill up. By time, I am referring to a extended period of sexual arousal and/or sexual stimulation. It is during this period of arousal and stimulation that this Skene's Gland begins to load up with this water like liquid from the blood system.

The Skene's glands are homologous with the prostate gland in males. The fluid that emerges during sex, female ejaculation, is not urine, and has a composition somewhat similar to the fluid generated in males by the prostate gland. When examined with electron microscopy, both glands show similar secretory structures. Because they are increasingly perceived as merely different versions of the same gland, some researchers are moving away from the name Skene's gland and are referring to it instead as the female prostate

Then, once the Skene's Gland has had time to get "charged up", it is time to set off the Squirting Climax. This is easier for some women than others, It is usually a massage process of the area around the G-Spot.  IT IS IMPORTANT TO UNDERSTAND, IT WILL FEEL LIKE YOU NEED TO PEE, BUT YOU CANNOT PEE AT THIS POINT, SO RELAX AND JUST LET IT HAPPEN ! ! !

One of the best ways to trigger a Squirting Climax, is with the use of a new
Silicone Dildo called The Curve, by Fun Toys, I think they are in Germany, but a number of USA sources are now carrying it, and I have pasted in below a link and prices from Amazon, where I got best online prices….. Expensive, but high quality silicone, and well worth the price,, I bought two of them. And I got mine from a local adult sex store, for their wholesale price of about $34, using the ploy that I was using them in a class, and gave them the referral for the source,, smiles…Ok, I am a con-artist….

Amazon Funfactory Curve Stub Dildo, Pink

$85.64 List price, Amazon has had it ranging from $59.01 (as of 6/11/2013) Also as of this date, the show a subset of these for $47.07, lower in the above linked page, under sub heading "7 NEW from $47.07"

Using the Curve Dildo, you then pump (fuck) the vagina, with the inner tip of the Curve, in a position forward, so it hit’s the G-Spot, and more importantly, massages the whole Skene's sponge area all around the G-Spot.

Generally “Wonderful, and Different” squirting climaxes will occur, even for women who have never had a squirting climax.


Consider this quote from © 1998 Oxford University Press (updated 6/11/2013) (Read the full article)

"Consider also, as initially pointed out by Longo, the forensic implications for alleged cases of rape. In the absence of knowledge of the female prostate and of the possible presence of PSA and PSAP in the normal female ejaculatory fluid, the identification of these supposedly male-specific markers in vaginal secretions may have been “. . . a fait accompli” to the accused, but possibly innocent, perpetrator. Indeed, judicial miscarriage may have easily occurred when, for example, PSAP has been considered adequate for the identification of sperm spots and its potential origin from the prostate of the female victim was not taken into account. Therefore, the presence of PSA and/or PSAP for the confirmation of spermatic secretion in the absence of spermatozoa has no forensic value. This knowledge of PSAP originating from the female ejaculate was instrumental in the recent acquittal of an alleged rapist in Europe. In this regard, forensic DNA analysis can be expected to play a significant role in the near future."

Read the entire link above for more on that subject of Modern Recognition of the existence of a Female Prostate.

**End of Seth Notes

The G-Spot, or Grafenberg Spot:

This is a small, highly sensitive area located 5-8 cm (2-3 inches) inside the vagina, on the front or upper wall. Named after its discoverer, a German gynecologist called Ernst Grafenberg, it is sometimes romantically referred to as the Goddess Spot. Research into the nature of the female orgasm, carried out in the 1940s, led to the discovery that the female's urethral tube, that lies on top of the vagina, is surrounded by erectile tissue similar to that found in the male penis. When the female becomes sexually aroused, this tissue starts to swell. In the G-spot zone this expansion results in a small patch of the vaginal wall protruding into the vaginal canal. It is this raised patch that is, according to Grafenberg, 'a primary erotic zone, perhaps more important than the clitoris'. He explains that its significance was lost when the 'missionary position' became a dominant feature of human sexual behavior. Other sexual positions are far more efficient at stimulating this erogenous zone and therefore at achieving vaginal orgasms.

It should be pointed out that the term 'G-spot' was not used by Grafenberg himself. As mentioned above, he called it 'an erotic zone', which is a much better description of it. Unfortunately, the modern use of 'G-spot' as a popular term has led to some misunderstanding. Some women have been led to believe, optimistically. that there is a 'sex button' that can be pressed like a starter button, at any time, to cause an erotic explosion. Disappointed, they then come to the conclusion that the whole concept of a 'G-spot' is false and that it does not exist. The truth, as already explained, is that the G-spot is a sexually sensitive patch of vaginal wall that protrudes slightly only when the glands surrounding the urethral tube have become swollen. Several leading gynecologists denied its existence when it was first discussed at their conferences, and a major controversy arose, but later, when it was specially demonstrated for their benefit, they changed their minds. Sexual politics also entered the debate, when certain anti-male campaigners rejected out of hand the idea that vaginal orgasm could be possible. For them clitoral orgasm was politically correct and no other would do. How they have reacted to the recent marketing of 'G-spotter' attachments for vibrators is not recorded.

Astonishingly, there have been recent reports that some women have been undergoing 'G-spot enhancement'. This involves injecting collagen into the G-spot zone to enlarge it. According to one source, 'One of the latest procedures to catch on is G-spot injection. Similar substances to those injected into the lips to plump them up can now be injected into your G-spot. The idea is that this will increase its sensitivity and so give you better orgasms.' This sounds more like an urban myth than a surgical reality, but where female sexual improvements are concerned, almost anything is possible. The A-Spot, AFE-zone or Anterior Fornix Erogenous Zone:

In this illustration, the A spot, which is not marked, lies just above the end of the like marked Cervex, in that dark corner up against the left side of the cervix opening to the uterus.:

Also referred to as the Epicentre, this is a patch of sensitive tissue at the inner end of the vaginal tube between the cervix and the bladder, described technically as the 'female degenerated prostate'. (In other words, it is the female equivalent of the male prostate, just as the clitoris is the female equivalent of the male penis.) Direct stimulation of this spot can produce violent orgasmic contractions. Unlike the clitoris, it is not supposed to suffer from post-orgasmic over-sensitivity.

Its existence was reported by a Malaysian physician in Kuala Lumpur as recently as the 1990s. There has been some mis-reporting about it, and its precise position has been incorrectly described by several writers. Its true location is just above the cervix, at the innermost point of the vagina. The cervix of the uterus is the narrow part that protrudes slightly into the vagina, leaving a circular recess around itself. The front part of this recess is called the anterior fornix. Pressure on it produces rapid lubrication of the vagina, even in women who are not normally sexually responsive. It is now possible to buy a special AFE vibrator – long thin and upward curved at its end, to probe this zone.

*Start of various Seth notes and pieces pasted in from various related documents:

1. this A-Spot location is often not reachable even with a finger, or a very long cock, or vibrator, in most women I have worked on. I have bought most of the longest Vibrators I could find, and hitting it with a very long and thin vibrator is the best I have been able to find, and even then I only have a inch or two outside to hang on to and work with.

2. If you continue on the Anterior (Front) surface beyond the G-spot you'll kind of round the bend to the back side of the pubic bone. On that surface it will feel more rubbery than just fleshy (a bit drier is my impression) and it feels like there are elastic bands under the surface. From that location you kind of want to do a 'come-hither' motion (using your finger to tell someone to come here) but not as hard or as far. Just a very relaxed motion.

In my experience, women cannot reach this on their own...of course as soon as I say that, someone who is double-jointed with 5 inch fingers will tell me I'm wrong. I know from personal experience I pretty much have to be palm up to get enough penetration to reach the spot, and I have big hands.

But once there...hang on...and in fact, a finger on the other hand pushing down on the posterior (outside, lower belly, just above pubic bone) side of the vagina seems to be very grounding and instead of orgasms with hips thrusting up, the reaction is more like pushing their butt down and forcing the palm of the hand to curl upward toward the clitoris. (Seth/ Yeah, I know, it is weird wording, but I did not write it,).

There is some evidence developing that the intensity of a woman's G-spot orgasm, AND Squirting Climaxes is mediated by the hormone estrogen. Most young women under 30 find clitoral orgasms to be more powerful because, due to their relatively high estrogen levels, their vaginal lining becomes too thick to allow direct stimulation of their G-spot nerves.

As the estrogen level begins to decline in women during their 30s, the vaginal lining becomes thinner and the G-spot, and Skene's Gland area behind the G-spot, becomes more accessible. That's why most women feel that they begin to peak sexually in their early to mid-30s.

**End of Seth Notes

Students of female sexual physiology claim (perhaps over-enthusiastically) that if these four erotic centers are stimulated in rotation, one after the other, it is possible for a woman to enjoy many orgasms in a single night. It is pointed out, however, that it takes an extremely experienced and sensitive lover to achieve this.

It has been claimed that two out of every three women fail to reach regular orgasms from simple penetrative sex. As mentioned above, most of them find that only digital or oral stimulation of the clitoris can be guaranteed to bring them to climax. This must mean that, for them, the two 'hot spots' inside the vagina are not living up to their name. The reason for this, it seems, is monotony in sexual positioning. A group of 27 couples were asked to vary their sexual positions experimentally, employing postures that would allow greater stimulation of the two vaginal 'hot spots', and it was found that three-quarters of the females involved were then able to achieve regular vaginal orgasms.

*Start of Seth’s notes again:


I have experienced remarkable results from another spot which is on the back side of the vagina, directly back of the G-Spot, which for a few women has seemed to be just as sensitive as the G-Spot. Since I can not find any data on this spot, I have decided to simply call it the B-Spot, a short for Back-Spot. ( Not wanting to call it a S-Spot, short for Seth-Spot,,, LOL). Having only found this in the last two years,, I cannot tell you how prevalent it may be in various women, as my research is still ongoing and of short duration. But I welcome any women who wish to experiment in this research.

**End of Seth Notes

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