The Art of Saying 'No'
For whatever reason, humans tend to enjoy things more when they have to work harder to get them. This principle holds true in the realm of intimacy, and we’re going to make the most of it. Whenever you're asked for something, delay it as much as possible. If they say, 'do this,' respond with, 'no, I don't feel like doing that today, even though I know how much you love it when I do it this way or that way, blah blah blah.' Say no and explain it in as much detail as possible.
By refusing, you’ll increase the excitement, and with the explanation, your partner will vividly imagine what you just said you won’t do. Complement this with actions that resemble what they requested (for example, if they ask you to touch a certain spot, then caress the area around it), and you’ll drive them absolutely wild. After that, you can start to give in to their pleas little by little... :P
A tip: it's best not to overuse this technique, as it might lose its charm.