Dr. Irwin Goldstein, editor of the Journal of Sexual Medicine, cited a four-week study of 1,500 couples in 2005 that found the median time for sexual intercourse was 7.3 minutes. (Women in the study were armed with stopwatches.)
WATCH EMPOWHER'S INTERVIEW WITH DR. IRWIN GOLDSTEIN:
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It's difficult for both older men and young men to make sexual intercourse last much longer, said Marianne Brandon, a clinical psychologist and director of Wellminds Wellbodies in Annapolis, Maryland.
"There are so many myths in our culture of what other people are doing sexually," Brandon said. "Most people's sex lives are not as exciting as other people think they are."
http://www.cnn.com/2008/LIVING/personal/04/02/sex.survey.ap/index.html