sigh @ the studs on here.
Do you guys actually manage to get your underwear off before shooting your load?
There are plenty of positions in which the woman gets a lot more stimulation than the man. Armed with this very fucking common knowledge, it would not take a complete genius to switch positions when you feel you are getting a bit close to cumming.
On top of this, if you practise some fairly simple relaxation techniques 'down there' you will find that over time you are able to relax away the male orgasm, again without stopping.
Cialis? Viagra? 8 times a night? Wanking because you can't control your own cock?
Poor, poor, women.