anal intercourse

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Insertion of an erect penis per anus in a fashion analogous to that of vaginal intercourse

anal intercourse

A form of sexual intercourse, usually homosexual, in which the anus performs the sexual function of the vagina.
References in periodicals archive ?
The bishop said that when the woman enjoys anal sex, "a desire is created, which is then transmitted to the unborn child."
The researchers were particularly interested in how many men had anal sex (1) without a condom, (2) without a condom and with an HIV-negative partner or partner of unknown HIV status, and (3) without a condom while having a detectable HIV viral load.
Among the 42.4 million sexually active women assessed, 9.0 million (20%) reported they had had anal sex in the past year.
When it came to being asked about participation in anal sex and oral sex, about one in five patients reported that their providers had broached the topics.
"[W]e are seeing oral and anal sex joining, rather than replacing, vaginal intercourse in heterosexual repertoires," write the study authors. "Moreover, despite the increasing prevalence of anal intercourse, the low prevalence of reporting recent experience may indicate it is a less regular feature in young people's sexual interactions."
Fan et al., "Relative risk for HIV infection among men who have sex with men engaging in different roles in anal sex: a systematic review and meta-analysis on global data," AIDS and Behavior, vol.
The input values used in the analysis for the per-act HIV transmission probability associated with unprotected (no condom use) insertive and receptive anal sex, the average number of sex acts per month (three insertive and three receptive anal sex acts per month), and the efficacy of male circumcision applied to only insertive anal acts have been described by Lasry and colleagues (3).
A total of 622 young black MSM--mean age of 23 years, 39% with high school or equivalent level of education, 79% of whom reported annual income of less than $20,000, and only half of whom were both HIV negative and reported having health coverage--were enrolled, based on eligibility requirements that they self-identified as African American or black, were born male, were between 16 and 29 years of age, and reported oral or anal sex with a male within the 24 months prior to enrollment.
Some evidence has shown that men who used a private room during a bathhouse visit reported engaging in condomless anal sex compared to men who had not used a private room (Reidy et al., 2009).
Data from NHBS ([dagger]) were used to describe adjusted trends in unprotected anal sex ([section]) in the past 12 months among MSM in 2005, 2008, and 2011.
For example, an Australian study reported that 46.3% of 1,148 MSM respondents had unprotected anal sex with regular partners in the previous six months (Prestage et al., 2005).
" When she thought about making a video to go along with The Ultimate Guide to Anal Sex for Women, she wanted to reach a broad audience and teamed up with Evil Angel, the only mainstream company that was willing to take on a sex education film.