Raising Them Chaste by Richard C. Durfield, PHD. And Renee Durfield 
Raising Them Chaste offers parents a practical strategy for supporting young people in a commitment to remain chaste until marriage. After underscoring society's pressures on young people to be promiscuous, the book tells how one family developed the idea of a "key talk" between parent and child to allow the parent to clarify the child's understanding of sexuality and the value of virginity.