I know that I dont like to cum before the other person so heres what I do,
I memorize a really long saying, I mean like 3 paragraghs long. When you feel the time is right just try saying it in your head (be careful not to say it out loud). And you have to start before you feel like you have to cum, by that time its too late. Here is the first part of three that I say, the last two are longer and more complicated. It helps take your mind off of whats going on.
No one is more professional than I. I am a Noncommissioned Officer, a leader of soldiers. As a Noncommissioned Officer, I realize that I am a member of a time honored corps, which is known as "The Backbone of the Army". I am proud of the Corps of Noncommissioned Officers and will at all times conduct myself so as to bring credit upon the Corps, the Military Service and my country regardless of the situation in which I find myself. I will not use my grade or position to attain pleasure, profit, or personal safety.
I hope this helps.