[size=1.2em]Occasionally, learned neurophysiologists publish research papers that they hope will lay to rest once and for all some of the myths surrounding the supposed G-spot and female ejaculation. These two possible aspects of the female orgasmic response are said by some to be linked, whereas most medical scientists doubt their very existence.
[size=1.2em]Dr Ernst Gräfenberg and his wife, also a doctor, were responsible for the G-spot’s fame. It was named after him in 1944 following his well-publicised research with a very small group of women, who were not randomly selected. Another factor that casts doubt on the research was that there was no control monitoring. But since the publication of the Gräfenberg s’ results, the myth of the importance of the G-spot has been perpetuated.
[size=1.2em]Women don’t ejaculate in the same way as men. There is evidence of a vestigial prostate in women but it has no function, is minute and doesn’t ejaculate. Women produce lubrication in variable quantities from several different sources, including the vaginal walls and glands around the entrance of the urethra and the vagina. Occasionally, the small glands around the entrance to the urethra produce lubrication so abundantly that this could be mistaken for ejaculation.
[size=1.2em]According to the latest research, so-called female ejaculation is in fact spurting incontinence. Many women are frequently minimally incontinent either at penetration or during orgasm. The constitution of the so-called ejaculate has been carefully analysed as to the proportion that could be uriniferous, and that that could have come from the paraurethral glands and has some similarities to prostatic fluid.
[size=1.2em]Many writers of sex books suggest that the G-spot is a small, hyper-sensitive area of the vagina about three quarters of the way up the anterior (towards the front) vaginal wall.
[size=1.2em]Anatomists have studied the anterior vaginal wall with great care, including microscopic studies. These have not shown that any patch of the wall is especially well supplied with nerve endings.
[size=1.2em]The clitoris is the most sexually sensitive part of the genitalia, its erectile tissue extends back an inch and a half as the bulb beneath the inside of the vulva to the vaginal orifice. The lower portion of the vagina, the area between the anus and the vagina (perineum) and the perianal area are also highly sensitive.
[size=1.2em]Conversely, the upper portion of the vagina, in which the G-spot is said to be located, is relatively poorly supplied by nerves and so is relatively insensitive. Physiologists suggest that stimulating the upper third of the anterior vaginal wall, relatively insensitive as it is, is most likely to cause a rhythmical pulling of the covering of the clitoris over its surface. This produces an orgasm. The same principle applies to sex involving penile penetration. Theoretically, there is therefore no difference between clitoral and vaginal orgasms.
[size=1.2em]When there is a difference in the orgasmic response it is probably related to other factors in female arousal. Some women need direct clitoral stimulation for orgasm, others, far fewer, only after penile penetration. The difference is probably related to psychology rather than female anatomy and is dependent on such varied factors as mutual sense of closeness and lust, or feelings of guilt, anxiety or anger.
[size=1.2em]SUZI GODSON
[size=1.2em]A: Magazines are not a great source of sexual enlightenment for young women because they discuss the acquisition of clitoral and G-spot orgasms as if the process were an exact science.
[size=1.2em][size=1.2em]It is not. Female sexual function is so complicated that scientists cannot even agree on tangible stuff such as anatomical structure. The full extent of the clitoris was discovered only in 1997 when the Australian urologist Helen O’Connor carried out post-mortem research on the sexual organs of ten women using 3-D photography.
[size=1.2em]She discovered that far from being the tiny hooded bean visible at the top of the labia, the “body” of the clitoris is a large internal structure comprising two arms up to 9cm (3½in) long that flare backwards into the body. And despite the fact that it has had acres of press coverage, the existence of the G-spot has never been proved.
[size=1.2em]Although some women experience increased sensation inside the vagina, scientists are not sure whether this is due to nerves, pressure on the urethra or impact on the internal extension of the clitoris.
[size=1.2em]There certainly doesn’t seem to be a unique G-spot structure. In 1997, a review of all the available research on the subject was carried out by Dr Terence Hines of the Department of Psychology at Pace University, in New York. He failed to find any evidence to substantiate its existence. Indeed, Dr Hines declared the G-spot to be a “sort of gynaecological UFO: much searched for, much discussed but unverified by objective means”.
[size=1.2em]It is hard to believe that any aspect of human anatomy could remain a mystery to scientists who have managed to clone sheep and graft human ears on to mice, but then female sexual function has never exactly been a scientific priority. This lack of information has led to much confusion and left many women feeling “less than” because they don’t appear to have a piece of anatomy that might not exist.
[size=1.2em]There are no universal truths about female orgasm because every woman is different, but in general, most women can achieve orgasm if they have enough clitoral stimulation and most can orgasm during penetrative sex if they have had enough clitoral stimulation beforehand.
[size=1.2em]However, few women can have a penetrative orgasm without any direct clitoral stimulation and although many women experience sensitivity and can orgasm, if the area known as the G-spot is stimulated, lots of women don’t feel anything there at all.
[size=1.2em]There is really only one way to make your mind up on this issue and, fortunately, you don’t need anyone to help you. To experience clitoral orgasm, just find your clitoris (six thousand nerve endings, you can’t miss it), lubricate your finger and rub until you feel all fizzy and start juicing an internal lemon.
[size=1.2em]To find your G-spot, lie down on your bed, knees bent, feet flat with a small pillow under your bum. Insert your lubricated middle finger about two inches into your vagina and press towards your navel. When you hit the right spot, pump firmly and it should start to feel nice. The sensation is less fizzy and more juicy. If you use the thumb of your other hand to gently stimulate your clitoris at the same time you should feel some very intense sensations. You may reach orgasm and even ejaculate. If you don’t, don’t worry about it.
[size=1.2em]Success is a journey, not a destination.
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发表于 2010-7-18 13:31:46