Lorenzo, I don't believe of one hour continuous erection. Erection will follow after one hour, then one hour later.
Mr. Felix, I can personally attest to you that, it is indeed possible to maintain an erection for an hour or more.
An erection of the penile glans penis is initiated through proper physical and temperate stimulation. The moisture of a woman's vagina reticularis when it rubs with the ventral portion of the glans penis will stimulate vasodilatory effect, in effect causing the parasympathetic to stimulate the penile organ. And increase blood flow.
So long as the stimulation is great and strong enough, the penis will remain erect continuously. Until the point of orgasmal threshold has been impinged.
A man can withold orgasm (cumming) by merely removing his penis from the vagina reticularis ; thereby delaying and preventing orgasm and in the process continue sexual acitivity indefinitely.
But I must say, there is only so much a man can do to maintain this zone of sexual drive. There will be a time when the urge to climax will be so strong that the man will allow the threshold to be hit. Thereby allowing a very strong and powerful orgasm.
It is simple male sexual physiology. really.
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