Postpone gratification and build up tension.
Otherwise known as foreplay.
There’s a simple rule concerning how long foreplay should last:
Do it for as long as you can, without actually penetrating her or touching her vagina for longer than a couple of seconds, and when you feel it’s really been long enough, continue for at least ten times longer than you’ve already been doing it.
Women are rather complicated in their arousal, sometimes they like it incredibly slow, and something they want to be overwhelmed by your passion. If you can combine good technique with clearly showing how much you desire her, you should be prepared for a geyser.
There’s a brilliant scene in Friends which gets it exactly right: