Help each other get undressed. But do it slowly. Really take your time with it. Undress him, and as you unbutton his shirt (or his slacks) plant sexy smooches on the exposed skin. After he’s stripped down, suggest he do the same to you. As he’s unzipping your dress, he can gently kiss along your spine. Undressing is often a simple, quick activity. But involving your partner in getting naked—particularly when you take turns focusing on the other—is a sweet way to get things cooking in the bedroom.