Sexual Excitation System (SE). The accelerator of your sexual response. It receives information about sex-related stimuli in the environment—things you see, hear, smell, touch, taste, or imagine—and sends signals from the brain to the genitals to tell them, “Turn on!” SE is constantly scanning your context (including your own thoughts and feelings) for things that are sex-related. It is always at work, far below the level of consciousness. You aren’t aware that it’s there until you find yourself turned on and pursuing sexual pleasure.
