Physiological changes take place all over the body from kissing. Sensitivity and pleasure feelings increase throughout the body. Even the feeling of pain is suppressed everywhere in the body. There is some justification for when you were young and your mom "kissed" your injury that was hurting to make the pain go away.
Kissing with a lover makes wonderful tensions increase and there is an overpowering craving for release and satisfaction. This wonderful, (add your own descriptive words here) pleasure and relief from the mating act is the powerful drive that has kept the species from dying off. Without this extremely pleasurable experience of mating we probably would not go through the effort and trouble of producing, protecting, and providing for offspring.
Kissing has become a major part of the flirting, dating, and mating process in most cultures. Wise men know that kissing is the fastest way to get a woman stimulated for further action. Research shows most women complain of not getting enough kissing before, during, and after sex. (Take notes guys, and plan ahead.)
And remember this guys: You probably are ready to jump in the sack with her to do your thing in just a few seconds after that first kiss! However, women have many more systems in their bodies that take longer to get started before their desire is revved up for the real action. So be patient and keep up the kissing until her "engine" is started! Watch for her need to pull you closer and not let you go. There is a tiger in every woman but it sleeps deep and soundly until the right guy wakes it up. That may be you!
