Fake it?
Seriously though, it's not entirely unheard of. A girl I'm seeing found a video called the
Maxwell Multiple Climax method, which teaches men how to have multiple orgasms. It's a hilarious movie, but one of the points he made is that it's possible to disassociate orgasm and ejaculation, so that you can have multiple orgasms before you decide to blow. And in googling it, it seems you can avoid ejaculation by
prostate stimulation too (if that's your kettle of fish).
If I were you, I'd see if you can multiple
I'm sure the girls will be more than impressed with a guy who can choose when he shoots, rather than within the first few seconds...