Barbie Lez. World-renowned trend chaser and bestselling author of the controversial new book, How to Have Sex with a Dog. Now an international celebrity, Barbie is asked to complete in the Bestiality Championship. Have you ever wondered what it would be like to have sex with a horse? Well, now you don’t have to. All the answers you seek are in Barbie’s brand new book, How to Have Sex with a Horse.