What does ejaculate " too fast " ?

In animal species , evolution has probably selected strains that ejaculate quickly and it may be also the case in humans . Intercourse , how indispensable to the survival of the species , is a time of great vulnerability in which vigilance is reduced. This is a good time for a predator grabs beings copulating . Ejaculate quickly gives more chances for the survival of a species by reducing the duration of copulation.
Anyway ejaculation occurs very rapidly in many animal species and spontaneously most men ejaculate within two minutes if they do not learn to hold back. But it usually takes more than two minutes of sexual stimulation for a woman reaches orgasm ( jouissance ) . Men had to learn to control their partner gets to his pleasure by vaginal penetration , knowing however that the length of penetration necessary for it reaches orgasm is all the more important as it has been long prepared before penetration by stimulations (touching ) genital . Thus, in more or less prepared by appropriate stimulation of the vulva and / or clitoris, some women may enjoy less than a minute after penetration .The most important criterion to define the EP is that ejaculation occurs before the man and his partner wish, and this is responsible for frustration, the pleasure of the woman is not reached , and man is feeling poor lover. Where suffering and often disruption of their sexual relationship. We see therefore need to take into account the needs and expectations of his partner , and ask him about it . A man may continue to ejaculate quickly bored if he thinks his partner or did not trust him . Conversely, in some cases , which seems premature for a man is already too long for his companion. But more often , ejaculation that occurs within two minutes after penetration is really premature for it.