November 15, 2006 11:54 PM PST
The Social Organization of Sexuality: Sexual Practices in the United States found that about 20% of heterosexuals have engaged in anal sex, and sex researcher Alfred Kinsey found that number to be closer to 40%. More recently, a researcher from the University of British Columbia (quoted in the May 5, 2005 issue of The Georgia Straight) puts the number of heterosexuals who regularly practice anal sex at between 30% and 50%.
In several cultures female receptive anal intercourse in a heterosexual context is widely accepted, especially as there is lower risk of unwanted pregnancy via unprotected anal intercourse (though this is not an absolute guarantee, since semen can leak from the anus, across the perineum, and enter the vagina). Anal sex is even sometimes seen as preserving female virginity, because it leaves the hymen intact. Another reason is that the anus is considered to be "tighter" than the vagina (especially right after a delivery), therefore yielding more tactile pleasure for the penis.
The taboo surrounding anal sex is likely to do with hygiene but also may have its roots in supposed psychoses deemed responsible for such "deviation". Some argue that a male heterosexual attraction to the practice has a basis in patriarchal mythologies surrounding a fear of the vagina and suspicion of women's sexual enjoyment and appetites (see succubus). Additionally, they argue that the appeal of anal sex to many male heterosexuals is a fetish of the taboo, sometimes associated with feces and human waste, as well as of violence and domination, as anal sex practices can result in the bruising and tearing of tissue. Others have argued that the avoidance of the anus is essentially human escapism, a facade whereby man denies his excretory functions, and that, ergo, the practice of the act is merely a form of disillusionment (cf. Ernest Becker's The Denial of Death). Moreover, the social taboo surrounding anal sex could potentially be seen as an example of political and religious dogma affecting modern culture, whereby the taboo itself is materialised through initial observance of religious morals, for example those held by some branches of Christianity or Islam.
From a utilitarian perspective it is also argued by some that the anus is a highly sensitive area with erogenous potential, providing ample opportunity for sexual arousal; that anal sex is a natural permutation of human sexuality, little different from oral sex or other noncoital contact; and that women can derive as much pleasure from the violation of taboos against non-traditional sexual practices as men can. Studies such as that done by Kinsey have suggested that approximately 35-40% of women who have experienced anal sex find it pleasurable, though this figure may vary depending on many factors.
In many cultures, even those where female receptive anal intercourse is considered normative, male receptive anal intercourse, even in a heterosexual context, is seen as taboo, or as less common. In some cultures anal sex is so commonly linked with homosexuality that any male who engages in receptive anal intercourse is considered homosexual, even if he is penetrated by a female partner with a sexual device (see pegging) or other things such as her hand, finger, or fist. In some cultures, only males who are penetrated by other males are considered homosexual, while males who penetrate other males are not.
November 15, 2006 11:53 PM PST
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November 15, 2006 11:50 PM PST
There is a high incidence of transmission of Sexually Transmissible Infections through unprotected sex. Unprotected anal sex carries greater risks. The high concentration of white blood cells around the rectum, together with the risk of cuts to the rectum and that one of the functions of the rectum is to absorb fluid, increases the risk of HIV transmission because the HIV retrovirus reproduces within the immune system's T-cells/CD4 cells. Use of prophylactics and other precautions are a medically recommended way to lessen risk of infection.
Condoms are alleged to be less effective and more prone to burst or slip during anal sex than vaginal sex. However, while one study estimates that condoms fail anywhere from 10% - 32% of the time during anal sex[5], SIECUS indicates a much lower failure rate of 0.5 to 12% [1].
Some manufacturers offer "extra strong" condoms designed specifically for anal intercourse. These condoms, while stronger, are usually not coated with spermicide and so offer less protection against pregnancy should semen enter a woman's vagina. However, since spermicide is an irritant to both the vagina and the anus, it can make contracting STDs easier for either partner, and can cause complications such as irritation, vaginal E. coli infection, and urinary tract infection. It can also damage the lining of the colon over time and should be avoided in condoms and lubrication.
During heterosexual anal intercourse, a penis that was in the anus should never be put into the vagina without either washing off the penis or changing the condom, as this might lead to vaginal infections.
November 15, 2006 11:49 PM PST
Although it is also practiced by heterosexuals and bisexuals, anal sex is often associated with homosexual men. However, like persons of other sexual orientations, some homosexual and bisexual men enjoy sexual activities of this kind while others do not.
Due to the wide range of people who practice anal sex, the reasons that people have for practicing anal sex vary greatly. Some men and women report being able to reach orgasm from receiving anal sex, with or without simultaneous stimulation of their genitals (penis or clitoris). Generally, for women, pleasure is derived through anal intercourse due to the shared nerve endings that are located between the rectal wall and the vagina, and/or from indirect stimulation of the G-spot. The anus itself contains many nerves as well, which can also react in a pleasurable manner when excited.
November 15, 2006 11:48 PM PST
Anal sex or anal intercourse is a form of human sexual behavior. While there are many sexual acts involving the anus, anal cavity, sphincter valve and/or rectum, the specific meaning describes the insertion of the penis into the rectum. It is practiced by people of all sexual identities and orientations, heterosexuals and homosexuals.
