Alas, premature ejaculation ("PE") is the easiest of all sexual dysfunctions to "fix." Please also note that because "premature" is a relative matter, that the following techniques that teach (recondition) the body of a 15 second guy to last 3 minutes will also teach a 2 minute guy last 10 minutes. As you read the following, please think of the model of "total number of times the nerves fire -- get stimulated." If your penis gets vigorous stimulation you experience orgasm soon (lots of nerves firing often in a short period of time). If your penis gets gentle stimulation, it takes longer before you have an orgasm (lots of nerves firing less often, over a prolonged period of time).
DIAGNOSIS:
You are experiencing PE if you can last 3 to 10 minutes by yourself, but only zero to 30 seconds when in contact with your lover IN THE ABSENCE OF OTHER FACTORS (see #5, below).
You are NOT experiencing PE when:
1) You often engage in foreplay involving stimulation of the penis for a prolonged time (15 to 90 minutes -- depends on the penis), then when the penis begins to penetrate the vagina, you experience orgasm. You might enjoy long periods of stimulation, but your penis can take just so much before it reflexes (like a sneeze) in orgasm.
2) You can last 10 minutes but your lover is unable to achieve orgasm until 15 minutes. This idea comes from the feminist assertion that "If you come before I come (no matter how long it takes) you're a premature ejaculator."
3) In the morning you "last" 90 seconds, and in the evening you "last" 10 minutes. This is most likely a reflection of numerous forces acting in concert: serum testosterone (energizes your penis) is at its peak just before you wake up; dinner might be competing with blood flow to the penis; alcohol, stress, tiredness all interfere with sexual response, etc.
4) With all former lovers you had no PE problem but