Anal sex and female virginity
Anal sex is sometimes seen as preserving female virginity because it leaves the hymen intact. Though more often applied to first penetration,[20][21][22] the concept of "technical virginity" is sometimes conceived as resting solely on vaginal penetration.[23]
肛交有时被用于保持处女膜。
Pegging
A woman using a strap-on dildo to anally penetrate a man is referred to as pegging.[24]
由女性用仿真阳具给男人进行肛交插入的行为称作 Pegging （这个在我国古典性学名著【金瓶梅】中有描写）
A 2005 survey of the U.S. Centers for Disease Control and Prevention found a rising incidence of anal relations in the American heterosexual population.
2005年的一项调查中显示肛交在异性恋中开始逐步流行的的趋势。
The survey showed that 40% of men and 35% of women between 25 and 44 had engaged in heterosexual anal sex;
调查显示有年龄在25-44之间的，40%男性和35%女性在异性性行为中有过肛交。
in 1992 a similar survey found that only 26% of men 18 to 59 and 20% of women 18 to 59 had.[25]
1992年相类似的调查中显示，在18-59岁年龄段的人群中有 26%的男性和20的女性 在异性性行为中有过肛交。
By way of comparison, seven times as many women as gay men engage in anal intercourse, a figure reflecting the greater overall heterosexual population.[26]
比较而言，有过肛交行为的女性是有过肛交行为的同性恋男性的7倍之多。
Another survey in 2008 focused on a much younger demographic of teens and young adults aged 15–21. It found that 16% of 1350 surveyed had had anal sex in the previous 3 months, with condoms being used 29% of the time.[27]
2008年的一项调查中发现，在15-21岁的年轻人中，有16%的人在过去3个月之内有过肛交行为（样本数是 1350），其中有29%的肛交行为使用了保险套。
However, given the subject matter, the survey hypothesized the prevalence was probably underestimated.
Figures for the prevalence of sexual behavior can also fluctuate over time. Edward O. Laumann's 1992 survey, reported in The Social Organization of Sexuality: Sexual Practices in the United States found that about 20% of heterosexuals have engaged in anal sex. Sex researcher Alfred Kinsey, working in the 1940s, had found that number to be closer to 40% at the time.
More recently, a researcher from the University of British Columbia in 2005 put the number of heterosexuals who have practiced anal sex at between 30% and 50%.[30]
2005年的一项调查显示，在美国，异性性行为中，采取肛交方式的站到了 30% - 50%
According to Columbia University's health website, Go Ask Alice!: "Studies indicate that about 25 percent of heterosexual couples have had anal sex at least once, and 10 percent regularly have anal penetration."[31]
一项调查显示，在异性性伴侣性行为中，25%的曾经尝试过肛交，10%的经常性进行肛交。
Pegging is a sexual practice in which a woman penetrates a man's anus with a strap-on dildo. The neologism "pegging" was popularized when it became the winning entry in a contest in Dan Savage's Savage Love sex advice column, held after an observation was made that there was no common name for the act.[1]
Physical pleasure
物理快感
Main article: Strap-on dildo
In terms of physical pleasure, women may get direct stimulation from the base of the dildo, or in the case of a double-ended dildo, from vaginal penetration. A woman can use a secondary vibrator, between the dildo and her clitoris, to get pleasure from pegging.
女性使用双头阳具模型，靠阳具模型直接刺激生殖器而得到快感。
Men may find stimulation of the anus, rectum, and adjacent organs, and particularly the prostate, enjoyable, which can lead to an anal orgasm. Some men enjoy masturbating (or being masturbated) during pegging.
男性快感来自于其前列腺被阳具模型按摩，以及同时用手直接或者间接刺激生殖器而产生快感。
[edit]Psychological pleasure
心理快感
Some people who engage in pegging may find pleasure in the psychological aspects of domination and submission which can be evoked through the practice. In particular, it is quite common for a femdom roleplay to culminate in a pegging. Given the stigma associated with anal sex (and its association with male homosexuality), some people, many of them heterosexual, derive enjoyment from the associated taboo. Advice columnist Dan Savage wrote that he believes all men should try pegging at least once, as it may introduce them to a new enjoyable sexual activity and illuminate them to the receiver's perspective in sex.[1] A man may cross-dress in feminine lingerie such as stockings, garters and high heeled shoes. This completion of the role reversal can be deeply erotic for some. Some people, particularly genderqueer people or those who engage in genderf*** may enjoy the gender-transgressive aspects of pegging. Some females may enjoy the feeling of having a "simulated penis".
In a male receiving partner, being penetrated can produce a pleasurable sensation due to the inserted penis rubbing or brushing against the prostate (also known as the "male G-spot", "P-spot" or "A-spot") through the anal wall.[40] This can result in pleasurable sensations and can lead to a distinct type of orgasm in some cases. The prostate is located next to the rectum and is the larger, more developed[41] male homologue to the Skene's glands, which are believed to be connected to the female "G-spot".[42] The Skene's glands are sometimes referred to as the "female prostate";[43] they are located around the urethra and can be felt through the wall of the vagina.
作者: katsura 时间: 15-3-2010 18:32
Chinese ppl r a bit special.
[ 本帖最后由 katsura 于 17-8-2011 14:06 编辑 ]作者: xblues 时间: 15-3-2010 18:39
提示: 作者被禁止或删除, 无法发言标题: 回复 #4 katsura 的帖子 Are there any minors?作者: katsura 时间: 15-3-2010 18:41
Chinese ppl r a bit special.
[ 本帖最后由 katsura 于 17-8-2011 14:06 编辑 ]作者: 鹰扬天下 时间: 15-3-2010 18:42
这个不一定要同志才做吧作者: xblues 时间: 15-3-2010 18:46
提示: 作者被禁止或删除, 无法发言标题: 回复 #7 鹰扬天下 的帖子 所以这个研究帖子说明的是异性恋中的肛交行为啊。就是让异性恋了解肛交在异性恋中也是有市场的啊。作者: katsura 时间: 15-3-2010 18:48
Chinese ppl r a bit special.
Are there any minors?
