BDSM is commonly seen as simply being about rope bondage, torture, sex, The Story Of O, and leather-clad dominatrices. When it's portrayed in books and media the focus is often on individual and intense experiences with little attention to any relationships the participants may have with each other. Certainly in some cases BDSM may only be a minor thread running through an otherwise ordinary relationship, but for some people BDSM can be a major and necessary part of their lives with their...