Well, being a recovering opiate addict, I can say and opioid well help prolong ejaculation. NOTE! I dont reccomend using narcotics for anything other than pain and when given by a doctor and so on and so forth >.> Anyway, on the subject of "don't immediately think that lasting forever is good", I agree. I am the polar opposite of you in the fact that it takes me hours to ejaculate, and thats assuming I even do ejaculate. It can be super annoying if not frustrating to wank away for ever sometimes getting close but just not quite making it. I would almost pay money to feel that right now. Back to the opiate thing I mentioned. I know when I was withdrawing from opiates I could ejaculate after maybe stroking it 10 or 11 times. And every time it was a mind blowing, cum spewing orgasm. It's just a shame I had to be in the agonizing, hellish, pain ridden torture filled throws of opiate withdrawal to enjoy such an orgasm. Everything is enhanced a hundredfold when you are coming off a serious opiate addiction. Okay, once again I have written a book. You can use benzocaine to desensitize your cock. There are a few gels and lotions that are made just for this reason. There are also some condoms with it on the inside of the condom and a tingler ingredient on the outside for the lady/guy to enjoy. I have heard rubbing and squeezing your cockhead firmly at the same time before sex can help too. I'm not sure about that last one since I heard it from a friend. One other method is to think solely on pleasing your partner and not think about what you are feeling at all. There is one more thing that may work depending on whether or not you can tollerate it. Let your partner suck you off til you ejaculate, then allow them to continue after you cum without letting up. It will be hard to deal with at first but eventually it will subside and your cock should stay hard and be desensitized. My first boyfriend would do this to me because he liked making me squirm and squeal, but I found that after all the sensitivity was gone my cock was still hard as a rock and I could fuck for another hour or so (He forced me into being a top, I hated him for that). It takes alot of willpower for a guy to tollerate being sucked on after they have an orgasm to where you can keep going without a rest afterwards. I do know once you have learned to do this you will want to do it all the time. And those are my parting thoughts.....
*Naked Hugs for everybody!*