If you just want to spice up your sex life, you may wonder why so much of this material deals with emotions. That's easy: It's nearly impossible to separate the mind and body when it comes to having a terrific, satisfying sexual encounter. Okay, a quickie or one-night-stand might not require a deep, intimate bond (although you might be surprised at how much emotions can come into play, even in supposedly casual encounters). But for any type of lasting or serious relationship, emotions play a big role in fulfilling and enjoyable lovemaking.

If you and your partner feel a mutual respect, affection, and trust for each other, you are much more likely to surrender your hearts, souls, and bodies completely to each other. You are also much more willing to consider new or daring sexual experiences and techniques.

Even seemingly negative emotions can spark hot lovemaking with someone who you care deeply about. How many times have you enjoyed raw, animalistic sex immediately after a heated argument? Or had some slow, tender make-up sex once you've settled your dispute?