No one has any idea ....?

There is nothing 'wrong' with you. You just need to learn how to control your premature ejaculation. Do what is called the 'squeeze technique'. While your g/f jerks you off or while she performs oral, she or you need to have your hand wrapped around your shaft and just as you feel you're about to cum, she stops and you squeeze your glans at the top of your shaft until the feeling subsides (this could be seconds or up to 1/2 minute or more). Keep doing this every time you have sex (you don't have to do only this- just a couple of times before you go ahead and cum) and do it while masturbating also. After a number of times of this (there is no 'norm' # of times) you will have a better countrol of withholding your urge to cum. Good luck.

Dane211> I am not 100% sure where you mean by when you say squeeze "your glans at the top of your shaft".
You mean right were your dick comes out or under the head?

Yup that bit there.

Right under your head. Your head is the glans.
Let us know how it works for you.

Tyseds

Listen, the head of your dick, theres a rim, very sencitive. Look at your erected dick, and where the head joins the rest of the shaft... Squeeze under the rim. I found it on my own, so just take a look. My best suggestion for bobvila is that if you know youre going to have sex that night, masturbate before hand. You'll still cum that niht, cept you'll be more calm.

Hope this helps