This is your brain. This is your brain on sex.

Something like that.
Scientific American’s Mind has an article this month giving a neural tour of the brain’s sexual response. The article supports Michael Bailey’s contention that women are more flexible in their erotic responding than men, who are more channeled into either same or opposite sex responding.
Here are the bullet points for the Mind article:

-Sexual desire and orgasm are subject to various influences on the brain and nervous system, which controls the sex glands and genitals.
-The ingredients of desire may differ for men and women, but researchers have revealed some surprising similarities. For example, visual stimuli spur sexual stirrings in women, as they do in men.
-Achieving orgasm, brain imaging studies show, involves more than heightened arousal. It requires a release of inhibitions engineered by shutdown of the brain鈥檚 center of vigilance in both sexes and a widespread neural power failure in females.

Makes for interesting weekend reading…