. . . Genital arousal involves vasocongestion and other physiological changes that occur in response to sexual stimuli Subjective arousal refers to mental engagement during sexual activity. A frontal cross section illustration of the vagina showing the action of a vaginal lubricant which lubricates the entrance to the vagina and hydrates SuperStock A Guide to Understanding Natural Vaginal Lubrication O Positiv 23.3: Anatomy of the Female Reproductive System Medicine LibreTexts