training one to cum on command is doable.
for many, it is impossible for them to grasp the concept.
Just like for example that, women can only orgasm a single time.
Or like how, direct clitoral stimulation is required for orgasm.
Or perhaps that women dont like oral- thats just something they do for Men.
But ONCE you get past all that hype....... *s*
It is indeed doable
-Odyssesus