What can a guy do to make the relationship longer and the orgasm stronger? advise

 A passionate and passionate relationship is the dream of all couples. Unfortunately, very often the close-up ends much faster than it should. And although the fault never lies only on one side, it depends a lot on the guy. He should try to work on his endurance. If the ratio is longer, it will certainly become more satisfactory for both parties. And the anticipated orgasm will be a thousand times stronger. What can a guy do to achieve this effect? Advise.