"Male Ejaculation Control" is for those "students of sex," who no longer find their own orgasm as interesting as it once was. We have already experienced that countless times and became deeply disappointed with its short duration of pleasure, followed by exhaustion. The "student/experimenter" seeks a grander and more satisfying experience of sex on an energy level.
So, we learn to "hold back" and to enter into and watch the female orgasms rise and fall and enter into her joyful experience and actually feel it and become almost one with it. (nature gave her a good one, too)
Think of it like performing cunnilingus, and all the fun and joy that is, "watching and feeling her sexual emotion." But, being engaged in sexual union is all the more wonderful of an experience because you are fully engaged with locked bodies, watching and experiencing a lovely female lover. In cunnilingus you usually do not ejaculate, and in sexual union, even though there is heat and friction on your penis, you can compensate for that and override that stimulation and remain calm and aware, with practice.
"Male Ejaculation Control," probably will fail if it is approached merely by trying to control thoughts or by applying pressure to the penis to try and stop the flow of semen. It will work "probably" only on a very limited basis, using thought and pressure alone. But, it is a starting point. And, holding off for an extra minute or two beyond your comfortable capacity is a nice accomplishment to begin with. Because, this means that nature is no longer dictating to you the rules of engagement.
"Male Ejaculation Control," is accomplished when the body/mind and emotions are in a very balanced and calm state, and you have control of your body, mind and emotions. Breathing is a big part of it. Breathing controls the mind and many bodily functions. The mind and emotions are controlled by your "will."
The key to "Male Ejaculation Control" is that you have found your own "will" to be superior to your "body/mind/emotions." It takes time to cultivate and you will encounter successes and failures. Masturbation is not a good activity when learning this subject.
(Certain herbs like "yohimbe bark" and "ginkgo extracts," and many others make your penis far too engorged with blood and sensitivity to have any comfortable control over the male orgasm in my experience. Also, I cannot speak on western erectile drugs like Viagra because I have never used them)
Of course there comes a time when the beautiful "yin" sexuality of the female in her height of sexual passion could ignite your urge to trigger and uncontrollably release semen, but you must keep yourself steady in your command center and watch and control youself during her onslaught, and remain calm. If you prevail and are able to get through and absorb her orgasm without releasing semen and at the same time enjoy her orgasm with all its subtle nuances, you emerge more intense and happy, like you experienced the "eye of the storm," were exhilerated by it, and lived to tell the story.
There is a level above mere "Male Ejaculation Control" that I am not experienced enough to talk about because I have no mastery of it, and that is internal steaming of the semen not released in sex. So, if there are any adept in that science here that have some mastery in that direction, I would love to hear about it.
But, going back to simple "Male Ejaculation Control," after you enjoyed much of the female, and if you are severly backed up after exhibiting your "control," then for the sake of your system and to not create enlargement in the prostate gland, you can choose by your "will," exactly the time and place of your releasing of the semen, again by your "will" and not by mere friction and and animal procreation instinct. (this release could be at the end of each session in the beginning, and later, after having had ten or more sessions without release)
If you watch animals engage, monkeys, horses, pigs, sheep, the male ejaculates fairly quickly. Meaning, he is controlled by nature. He does not care to prolong the act and learn about his partner's orgasm or even to find ways to increase his own pleasure. He is programmed to engage and release to proliferate his species by ejaculation of his seed. We, as humans have risen above the mere capacity of animals. We, as human beings, have the ability to use our "wills" to have control over natural bodily functions.
This science is discussed in depth in the works of Mantak Chia and many others dating back many thousands of years. Unfortunately, they can only act as a guide and experimentation must be accomplished by you. So, have fun trying.