What I usually do is having like 20 mins of foreplay, not more. This already enhances a bit how much you'll last.
During sex, just stop for 20 seconds or half a minute when you feel you are about to come. This small thing made me last almost two hours once.

In any case, remember that the more you sleep with a certain girl, the longer you'll last!

Try having a couple of drinks. Not too many, just enough to get a small buzz.
Don't know why but it helps me last longer.

Watch out with that cause alcohol is an inhibitor and you won't be able to get an erection if you had too much.

Try this:

During intercourse, as soon as you feel like you are about to begin the reaches of climax change positions. this 10-20 second break is often enough to let the volcano go back down, as soon as you feel it rising again, switch positions once again, and so on and so on.

If you presently lack the ability to stop the volcano from erupting once it has started, you will need to practice. This can be done during masturbation. Anytime you feel it getting close, Stop! wait for it to go down,(10-20 seconds) then proceed. Do this about 5-6 times each time you masturbate. Eventually you will get used to it and it should make things a lot easier for ya when your with that hot woman.