When we delay physical involvement to its proper time, we allow the relationship to grow and mature. Then, once that relationship has developed into a lifelong marriage commitment, sex can become meaningful, constructive and beneficial to the relationship. Until that commitment is sealed, however, the couple needs to spend time discovering each other, finding out what it is that makes the other unique and attractive. This forms the friendship that lays the foundation for love, which leads to the personal intimacy each seeks.
Josh McDowell and Dick Day, "Why Wait?" p.282