That varies from man to man and even from erection to erection. So there really isnt a set time of whenit starts..that is why proper protection is always a wise thing to use.
In most cases pre ejaculate starts leaking about the time the erection is achieved and continues to leak out up to ejaculation.
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Married 3/25/95
DS 13 yr
DS 8 yr (3+ yrs ttc)
TTC #3 since 01/02
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