Retrieved September 4, Because most research on anal intercourse addresses men who have sex with menlittle data exists on the prevalence of anal intercourse among heterosexual couples. Anal sex alone does not cause anal cancer; the risk of anal cancer through anal sex is attributed to HPV infection, which is often contracted through unprotected anal sex. Houghton Mifflin Original from the University of Virginia. Christian texts may sometimes euphemistically refer to anal sex as the peccatum contra naturam the sin against nature, after Thomas Aquinas or Sodomitica luxuria sodomitical lusts, in one of Charlemagne 's ordinancesor peccatum illud horribile, inter christianos non nominandum that horrible sin that among Christians is not to be named. Women engaged in anal intercourse less commonly than men. It is also common for subject review panels and schools to avoid the subject.
Many men find anal intercourse more exciting than penile-vaginal intercourse because the anal opening is usually smaller and tighter than the vagina.
Adjustment in the 21st Century. A Public Health Perspective. The best positions to find the G-spot from the backdoor is reverse cowgirl, or standing and facing away from your partner. Greek artwork of sexual interaction between men and boys usually depicted fondling or intercrural sexwhich was not condemned for violating or feminizing boys,  while male-male anal intercourse was usually depicted between males of the same age-group. Anal sex being more common among heterosexuals today than it was previously has been linked to the increase in consumption of anal pornography among men, especially among those who view it on a regular basis.