Did you ever hear of a woman who didn’t like foreplay? I haven’t.
Foreplay, foreplay, foreplay.
If you have a tendency to come too soon, then try bringing her to orgasm before you even go in.
For example, let your fingers do the work. Or even better, give her oral sex. Use your tongue around her labia (‘pussy lips’) and clitoris, and keep doing whatever she likes best. She’ll probably respond most to your stimulating her clitoris, but change what you do from time to time to keep the anticipation going.
You will find a clear diagram of the female genital area, and what is most sensitive, in my ebook (UK link – for other links see the side panel or type ’10 hot tips’ into Amazon).