Vaginal Lubrication The purpose of vaginal lubrication is to allow comfortable entry and thrusting of the penis during intercourse. Being  sexually “turned on”, even without the vagina being touched, will result in an increase in vaginal lubrication. The factors at work here are (1) psychological receptivity, (2) a normal level of estrogen that maintains the vaginal lining appropriately thickened so that there is a … [Read more...]