This is when you start talking dirty. One note, by the way: when you're talking about sexual acts with your partner in bed, you should use the words that will really turn you both on. If more hard-core words for sexual acts get you going, use those. But if softer descriptions are more comfortable, stick to those. There are four ways to go here:

• What I'm Going To Do: This is a popular one. In this dirty talk scenario, you tell your lover what you're going to do to his or her body before you do it, for example, "Now I'm going to gently bite your neck." This allows them to anticipate what's coming next, and this technique works even better if you have him or her close their eyes while you do it.
• What I Am Doing to You Now: Just another variation of the above, but with this one, instead of giving your lover warning, you simply verbally state what you're doing. You'd be surprised how much more erotic licking your partner is when you're saying what you're doing at the same time.
• What I'd Like You to Do: What's the easiest way to get your partner to tell you what he or she wants in bed? Ask them. "Tell me how you like it," or "Tell me what you want me to do to you," will open the door to your partner telling you what he or she wants, and with any luck you'll grow from there to having them tell you without your asking.
• How You're Making Me Feel: Sometimes knowing that you're reacting to what's going on in the bedroom can make your lover even more aroused. Start with the simple, "You make me feel so good," or "You feel so good to me," and work up from there.

The most important thing to remember with talking dirty is that it's supposed to be comfortable and exciting for both parties. Pay attention to how your partner is responding to you (you should always be doing that anyway!), and you'll know how far to take it. Forget about silence being golden -- a little talking can be orgasmic!