Naked, Middle-Aged Stone Uses Sex as Power

"Hollywood has to do it first before we go there," Vranich said. Forty-three-year-old Demi Moore's marriage to 28-year-old Ashton Kutcher is the perfect example. "It takes just a few beautiful women in their 40s to set a trend, and guys will notice."

Some people may disagree entirely with the idea of anyone getting naked on the screen, but experts on sexuality and aging agree that these high-profile older women are setting the stage for the rest of us -- telling women to accept their bodies and strut with the confidence of a Hollywood movie star even if it's only in their own bedrooms.