Today is Part One of a conversation with Yale psychology professor Paul Bloom about his new book How Pleasure Works: The New Science of Why We Like What We Like. Susie is intrigued to hear what Dr. Bloom has discovered about desire and what we can and can't control. Susie and Paul discuss pornography and why it is so arousing. They also talk about "sperm wars" and why American men have such large testicles. And they reveal why the old "bed trick" - when a person is not who you think they are - is so disturbing. If I was turned on by you as a girl, but you're a boy...what does that say about me? Next, in our "Try This at Home" mailbag, Susie gets a letter from a woman who offers some help to a previous mailbag listener, who had painful sex. It turns out that her vagina has been hit with an auto-immune disease. We've got some advice to relieve the problem. Have a question? You can call Susie's hotline at 831-480-5110. And you can send your confidential questions - plus requests for free samples and blog banners! - to email@example.com. [Episode 445, August 27, 2010] Explicit Language Warning: You must be 18 years or older to purchase this program.