Book excerpt: Seventy percent of American teens have had sex by age eighteen. Richard and Reneé Dur&supl;eld--the parents of four grown children--encourage parents to help their teens resist sexual temptation using the practical "key talk" concept and a covenant with God to remain chaste. Includes how to have a "key talk," questions a child may ask, guidelines and goals for dating, praying for a child's future spouse, and more. Originally titled Raising Them Chaste, this edition includes new information gained from the Durfield's ministry to families.