Maybe you can see now how also the macro can be beneficial to your goal to increase the micro. And they're mutually increasing not like 1+1=2 but more like 1+1=6. If you train your micro alone it will take you a long time to get it to 40 minutes if it ever will. But if you train your macro as well your micro increases pretty fast, and multiple hours are achievable.
At this point it could be possible that your Sexpartner isn't able to sustain you anymore (if she didn't train herself), so you could only advance in your micro training by either further increasing your macro or having sex with multiple partners simultaneously, so they can rest while you're doing the others.
If you want I can tell you how you can cure your Premature Ejaculation (PE) once and for all in a matter of weeks, by doing a set macro training that you use to get a huge micro boost which in turn cures your PE. (PE basically meaning your micro is so far below average that it is given a name)
The Kegel exercises you know are probably already sufficient for this technique.
At this point it could be possible that your Sexpartner isn't able to sustain you anymore (if she didn't train herself), so you could only advance in your micro training by either further increasing your macro or having sex with multiple partners simultaneously, so they can rest while you're doing the others.
If you want I can tell you how you can cure your Premature Ejaculation (PE) once and for all in a matter of weeks, by doing a set macro training that you use to get a huge micro boost which in turn cures your PE. (PE basically meaning your micro is so far below average that it is given a name)
The Kegel exercises you know are probably already sufficient for this technique.