Penile-vaginal intercourse
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Penile-vaginal intercourse or vaginal intercourse is a form of penetrative sexual intercourse in human sexuality, in which an erect penis is inserted into a vagina.[1] Synonyms are: vaginal sex, cohabitation, coitus (Latin: coitus per vaginam), (in elegant colloquial language) intimacy, or (poetic) lovemaking. (Some of the synonyms are used for other variants of sexual intercourse as well.) It corresponds to mating or copulation in non-human animals.
Various
Biological function
The desire for sensual
Sperm swim through the
For people who do not want (another) child,
Since there is no
There are currently more than 7.5 billion people (
Legal situation
Vaginal intercourse between private individuals is part of their
Psychological aspects
A desire for
In experimental studies with men and women whose hormone levels were examined, one having
In 2006, the WHO reported a worldwide prevalence of between 8% and 21.1% of painful vaginal sex for women.[40] In a U.S. study, about 30% of women and 7% of men reported pain, for most only mild and of short duration. This study found that a large percentage of Americans do not talk about the pain with their partner.[41][42] In a Swedish study of young women aged 18 to 22, as many as 47% reported pain, but they said they did not want to interrupt the sex act. Some pretended to enjoy it instead of giving the man any
“It’s a pleasure to be with a man who is self-assured, confident in his ability to get erect and maintain his erection long enough to enjoy the dance of erotic love. If he’s not a cocksman, he has mastered oral and manual skills. He has a sensitive touch and never hesitates to ask how I like my clitoris touched. He is never in a hurry. Before touching my clitoris, he always applies some kind of lubrication. When entering my vagina, he savours slow penetration.”[45]
Description
In all
Preparation for vaginal coitus usually involves foreplay in the form of
The sex positions, the pelvic movements of the woman and the man, how slowly or quickly they are performed and the lesser or greater depth have an influence on the two arousal curves. Duration can be influenced by positions, gentle or stronger movements, and by touching erogenous zones with the hands.[50] The needs for movements are individually different for both women and men.[51][52] For women, pelvic floor training and active movements of their pelvis during vaginal intercourse increase the chance of orgasm.[53][54] A man's arousal curve usually rises faster, while women need plenty of time.[55] According to an investigation of 2005 the time from penile insertion to male orgasm, the intravaginal ejaculation latency time (IELT), varies between 0.55 and 44.1 minutes.[56] Sexually experienced men use delaying techniques to give their female partner the time she needs. Most men can learn to intentionally delay their own arousal and orgasm by practicing this doing masturbation.[57][58][59][60] The reason why men are faster by nature:
In a man, his glans penis is constantly enveloped by the vagina, it is continuously stimulated, making it likely that moving in and out will cause him to have an orgasm relatively soon.
In women, the
The clitoral glans has an essential function in triggering sexual arousal and then orgasm,[62] For many women, the movement of the penis in the vagina causes only a limited increase in their arousal. Many women reach orgasm when both the extravaginally located parts of the clitoris and the erogenous zones inside the vagina are continuously stimulated simultaneously for long enough. Sexual arousal can increase to the point where one or both partners experience an orgasm either in succession, or simultaneously. The hypothesis of two modes of female orgasm - "vaginal" or "clitoral" - is not tenable. Rather, it is a complex reaction in which all organ systems of the human body are involved.[63][64][65] Without clitoral stimulation, 23.3% of women reach orgasm during vaginal intercourse, with simultaneous clitoral stimulation 74%.[66]
When the man is sitting upright with the woman sitting on his lap, she can rub her clitoris against his
Another variation of vaginal sex is with lesbians who use a single or double-sided dildo.[68]
Injury risks
In a woman with an intact moist vaginal mucosa, friction by the penis is painless. In case of insufficient vaginal lubrication or excessive temporal extension of the coitus, the mucous membranes may become sore due to mechanical irritation.[69] If sand gets into the vagina on a beach or in an unclean dwelling, small abrasions occur in the vagina and on the glans penis. A vaginal douche has physiological disadvantages.[70] The sand is excreted by the natural self-cleaning of the mucous membrane.
The length of the stretched vagina varies from person to person. The
In men, there is a risk of penile rupture if the penis is bent when erect. This is a case of medical emergency.[75][76][77] According to studies (2017 and 2022), accidents in which the man suffers a penile fracture occur predominantly in the doggy style position, but a careless movement by the woman on top can also inflict such a serious injury on the man.[78][79] One of the causes is the penis slipping out of the vagina and, during the next thrusting movement, forcefully hitting an area of the vulva under which her
Partnering techniques preferred by women
In 2021, a study of 3017 American women identified the ways women have discovered to make vaginal sex with a male partner more pleasurable and arousing for themselves.
- "Angling": 87.5% of women find it pleasurable to circle their pelvis or lift and lower it to control where the penis pushes or rubs and how it feels.
- Rocking": 76% of women find it sexually arousing to have the penis constantly deep inside the vagina without any long in and out movements and to rub their clitoral glans against the base of the penis.
- "Shallowing": 84% of women enjoy and respond to "shallow" penetration, i.e. when the tip of the penis moves only in the front part of the vagina (G-spot), but not on the outside or deep inside.
- Pairing": 69.7% of women are most likely to reach orgasm during vaginal intercourse when they or their partner stimulate their clitoris with a finger or vibrator or Hitachi Magic Wand simultaneously.
The knowledge of such techniques enables women to communicate their preferences to their partners.[84] Pairing has been tested successfully since the 1970s by Betty Dodson in her coachings for women suffering from anorgasmia by using a dildo to penetrate the vagina and a vibrator to place next to the clitoral glans. The other techniques were also part of her coaching for women who wished to experience orgasm during vaginal intercourse as much as their partner.
Physical conditions
An investigation by the
A variety of factors can lead to discomfort or pain (see dyspareunia).[90] Specialists in gynaecology are responsible for treatment in women; specialists in urology and dermatology are responsible for treatment in men.
For people with physical impairments (
See also
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Further reading
- William H. Masters, Virginia E. Johnson, Robert C. Kolodny: Heterosexuality. New York; London: HarperCollins, 1994. ISBN 978-0-7225-3027-6.