Show me your amygdala, baby -- another shocking breakthrough in the world of science today: men and women have wildly different mechanisms of sexual response. Woah! Turns out that Viagra will never be a big seller for women, because it just works on the plumbing, not the brain -- the biggest and most important piece of sexual equipment, after all. Best line, regarding male lab rats: "Yet despite this lack of motivation, they had no problem engaging in sexual intercourse when the females were placed in their cages." I think that pretty much says it all. ;-)