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Robert Krueger

(<a href='http://www.istockphoto.com/portfolio/Thomas_EyeDesign'>Thomas_EyeDesign</a> via <a href='http://www.istockphoto.com/'>iStock</a>)

Say bye to the 40-year-old virgin: Why sex just gets better with age

Miri Forbes, Nicholas Eaton, Robert Krueger