When I went to Lamaze with my wife the instructor explained the Kegel exercise but noted that the men shouldn't try this at home, as "men don't have Kegel muscles." Wow, did I fall for that. And it seems to me that Dr. Kegel's original idea was unfortunately corrupted by his and his wife's idea that money could be made by selling an exercise device, really just a glorified dildo, for the muscles involved in urinary continence.
But the original idea is ancient, of course, and it is simply deliberate pulsatile urination (my term, but you get the idea). Dogs do it when they mark their territory. But back to Dr. Kegel, it seems he only recommended interrupted urination in order to get a feel for the muscles involved, after which you could simply flex the muscles at any old time during the day...urination not necessary.
This idea has been copied and pasted ad infinitum on the internet, and I strongly disagree. The only useful exercise of these muscles is during actual urination. If you have the discipline to practice deliberate pulsatile urination every time you urinate, after a year or so the muscles are so strong and well controlled that orgasm hasn't got a chance.
Otherwise--if the only exercise these muscles get is through orgasm control, it just isn't enough. You'd have to have an absurd amount of sex.
If you Google this general topic you will come across a page from Johns Hopkins Medical Center, I believe, where deliberate pulsatile urination is cautioned against as an exercise which actually weakens the muscles. There is a grain of truth there, but the conclusion is nonsense. During the first few weeks of these exercises, there can be some pain. If you Google that you will be advised that the pain results from your urine being too acidic, and you will be advised to change your diet. Also nonsense. You can easily check the pH of your urine and determine that it is just fine. I don't know what causes the pain, not everyone may get it, but it can come and go, it's not that bad, and after a few months it will pass.
As for the muscles being weakened, a few days after you start the exercises, and then lasting for a few weeks, when you get the urge to urinate you can't get to the the bathroom fast enough. That's the grain of truth. But it would be wrong to conclude that the muscles have been weakened. They are just becoming used to being controlled more deliberately. After a few months that feeling of no control will also pass, and you will just have a heightened awareness of when you really ought to urinate. And that's a good thing.
fter a year of these exercises you will have mastered urination, and assuming your partner isn't trying to drag one out of you, you can now go into the bedroom with absolutely no fear of orgasm, because the same muscles that control urination control orgasm.