There is something called “point of no return” and when people try this stuff out they usually start to reverse kegeling too late; when they sure are going to cum anyways. Basically for me it is enough to restrain myself from INVOLUNTARILY kegeling, what we all do during masturbating and sex, by lightly reverse kegeling (which is purposely relaxing the muscle) when I start feeling a bit too good. I have to be sharp about that or I might start to go softer and then I need to start kegeling again to get 100% rock hard again. It is about balance and maintaining the right point of arousal before the point of no return and you can do that only by trial and error, learning your own body.
Stopping is okay! Don’t worry about that. Just find other stuff to do while doing so, like getting glass of water for you and her if you need to take a longer break to not come and after you’ve calmed, start again, with kissing and everything, turning her on again. She’ll most likely love that.
Then again, if you only need a shorter break, just changing positions might be easily be enough and for example I find that I’ll practically never come when she is on top so if I start feeling too much, I might switch into that.
I’ve been kegeling on and off for about 7 years, but I am no way as developed in that section as some other members here, I’ve never had the consistancy with it that I should’ve had.
"Be aware that there are several schools of thought here as well. Some seem to go with the hard and heavy approach. The sessions are brutal. You can hear them talking to their dick: You better grow mofo or I will punish you even harder tomorrow! Others seem to favor a more tender approach. Always listening to what their member is saying while massaging it gently and singing to it with a soft voice. If it is moody and not happy with new behavior, they always listen and are very understanding."