Try out PMC Labs and tell us what you think. Learn More. Anal intercourse is a highly efficient mode of HIV transmission. Nevertheless, there is evidence to suggest that anal intercourse is also widely practiced by women in the US 1 — 4. Given that anal intercourse is associated with higher rates of heterosexual HIV transmission than vaginal intercourse 10 — 13 , women who engage in unprotected anal intercourse with sexual partners of unknown or seropositive status may be at greater risk for acquiring HIV than women who do not practice anal intercourse or who use protection while doing so.

Relationships, like produce, milk and reality television stars, have a shelf life. Most couples find that after a few weeks, months, or years, the luster fades and the initial carnal fury that brought them together has dissipated. The moldy codgers who get past this sexual brick wall do so by developing an elaborate series of coping mechanisms. Infidelity is common in scenarios where one or both sexual partners become fed up with plain vanilla missionary. Sometimes, the couple just resigns themselves to erotic entropy, and embraces a sort of marital celibacy typified by the nightly ritual of 'reading magazines' or 'checking the scores on ESPN.

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