When you feel that you have fucked enough good minutes and want to cum, but can't. Well, not without more humping and effort. Is this a bad feeling for you as you expend more energy and time to get there, perhaps making you very tired, which takes away from the joy? But is it at least better than premature ejaculation? But maybe you worry that one day, you will reach the level of ineptitude that you can't even cum at all (despite not having ED)? So in that case premature ejaculation would be better because at least you know that you will always cum? Or perhaps you look at it on the bright side, that you get more fucking time? Your thoughts and feelings about this?