For younger people - those in their 20s and 30s, mostly - body piercings rank high as fetishes. With the acceptance of the activities in the wildly successful 50 Shades trilogy, leather and other sadomasochistic materials are making an appearance in "normal" people's sex lives. Domination and submission, or just simply being restrained, have become more popular as well. Shoes and feet rank high on the fetish scale - a 2007 study even found that feet were the most highly fetishized body parts! Experts say fetishes are fairly harmless, unless they involve a life-threatening action, such as choking or other violent acts. Naturally, a willing partner is a must when you indulge your fetish. And if he or she isn't into it, then a fetish can make or break the relationship. Keep in mind the golden rule when you indulge.