The celibacy struggle Many teens don't keep abstinence pledges; others redefine what 'sex' is By Mary Meehan HERALD-LEADER ARTS WRITER Abstinence pledges -- signed commitments that teenagers will not have sex before marriage -- might be less than effective, a recent study says. And more than half the teens in a recent study said a person should still be considered abstinent after engaging in oral sex. Those are the results of a Northern Kentucky University survey of nearly 600 teens. According to the survey, 61 percent of those who had taken abstinence pledges had broken them within a year. Of...