Heterosexual couples account for most anal play

Voeller, B. “AIDS and Heterosexual Anal Intercourse,” Archives of Sexual Behavior (1991) 20:233.

History of anal sex

McBride, KR and JD Fortenberry. “Heterosexual Anal Sexuality and Anal Sex Behaviors: A Review,” Journal of Sex Research (2010) 47:123.

Prevalence of anal sex

Benson, L.S. et al. “Correlates of Heterosexual Anal Intercourse Among Women in the 1006-1010 National Survey of Family Growth,” Journal of Sexual Medicine (2015) 12:1746.

Copen, C.E. et al. “Sexual Behavior, Sexual Attraction, and Sexual Orientation Among Adults Aged 18-44 in the United States: Data from the 2011-2013 Natural Survey of Family Growth,” National Health Statistics Reports (2016) 7:1.

Halperin, D.T. “Heterosexual Anal Intercourse: Prevalence Cultural Factors, and HIV Infection and Other Health Risks, Part I,” AIDS Patient Care and STDs (1999) 13:717.

Herbenick, D. et al. “Sexual Behavior in the United States: Results from a National Probability Sample of Men and Women Ages 14-94,” Journal of Sexual Medicine (2010) 7(Suppl 5):255.

Hess, K.L. et al. “Prevalence and Correlates of Heterosexual Anal Intercourse Among Men and Women, 20 U.S. Cities,” AIDS Behavior (2016) 20:2966.

Heywood, W. and A.M. Smith. “Anal Sex Practices in Heterosexual and Male Homosexual Populations: A Review of Population-Based Data,” Sex and Health (2012) 9:517.

Hemorrhoids and anal sex

Johanson, J.F. and A. Sonnenberg. “The Prevalence of Hemorrhoids and Chronic Constipation: An Epidemiologic Study,” Gastroenterology (1990) 98:380.

Mounsey, A.L. et al. “Hemorrhoids,” American Family Physician (2011) 84:204.

Riss, S. et al. “The Prevalence of Hemorrhoids in Adults,” International Journal of Colorectal Diseases (2012) 27:215.

Heterosexual anal intercourse is increasingly popular

Brody, S. and P. Weiss. “Heterosexual Anal Intercourse: Increasing Prevalence, and Association with Sexual Dysfunction, Bisexual Behavior, and Venereal Disease History,” Journal of Sex and Marital Therapy (2011) 37:298.

“The Bottom Line,” New York Magazine, Oct. 25, 2007.

Initial anal play is often unplanned

Reynolds, G.L. et al. “Why Women Engage in Anal Intercourse: Results from a Qualitative Study,” Archives of Sexual Behavior (2015) 44:983.

Why women engage in anal sex

Maynard, E. et al. “Women’s Experiences with Anal Sex: Motivations and Implications for STD Prevention,” Perspectives on Sexual and Reproductive Health (2009) 41:142.

McBride, K.R. “Heterosexual Women’s Anal Sex Attitudes and Motivations: A Focus Group Study,” Journal of Sex Research (2017) epub ahead of print.

Reynolds, G.L. et al. “Why Women Engage in Anal Intercourse: Results from a Qualitative Study,” Archives of Sexual Behavior (2015) 44:983.

General guides to anal play

Morin, J. Anal Pleasure and Health: A Guide for Men and Women (3rd ed.) Down There Press, San Francisco, 1998.

Taormino, T. The Ultimate Guide to Anal Sex for Women. Cleis Press, San Francisco, 1998.

Until 1961, oral sex was illegal throughout the U.S.

https://www.alternet.org/story/154847/understanding_the_right%27s_fear_of_sex%3A_how_america%27s_absurd_oral_sex_and_sodomy_laws_were_overturned

Some men receive

Herbenick, D. et al. “Sexual Behavior in the United States: Results from a National Probability Sample of Men and Women Ages 14-94,” Journal of Sexual Medicine (2010) 7(Suppl 5):255.

Pain during anal intercourse

Herbenick, D. et al. “Pain Experienced During Vaginal and Anal Intercourse with Other-Sex Partners: Findings from a Nationally Representative Probability Study in the United States,” Journal of Sexual Medicine (2015) 12:1040.

Stulhofer, A. and D. Ajdukovic. “Should We Take Anodyspareunia Seriously? A Descriptive Analysis of Pain During Receptive Anal Intercourse in Young Heterosexual Women,” Journal of Sex and Marital Therapy (2011) 37:346.