Although you should dress in a way that makes you feel comfortable with yourself and that suits your mood, you may also want to consider the taste of the person you are in a relationship with or someone you wish to attract. Men like to see women's shapes, or hints of what they may eventually touch underneath. Specifically, clothes that are soft and fluid and that move with your body tend to attract men most. Usually these types of clothes feel good on your body, too.
If you would like to set the scene for intimacy with the man in your life, there are certain ways to dress to achieve different affects. For example, if you want him to be in control (to "take you," so to speak -- with your consent, of course), dress innocently. Wear light colors and emphasize your vulnerable side. This will appeal to his dominant side. If you wish to project a strong, take-charge image yourself, you may want to wear something bolder, such as leather and latex. Even a classic black business suit with a touch of lace or silk underneath can do the trick. When dressing to be undressed (knowing that intimacy is on the agenda), wear something that makes him focus on the part that you want him to caress and reveal first. The placement of a zipper or buttons (in the front or back of your shirt, for example) may be all that's needed to show him the way.