This is where social context comes in, because studies show that women routinely under-report their sexual desire to fulfill expectations for women to be less sexual. That's why studies have been done to test both women's reporting and their physiological changes when reporting desire. Most of the time the woman's report and the actual displayed desire did not match up. So getting to the truth is a lot more complicated than a formula of hormone levels.
There isn't any denial from me that there aren't inherent biological differences between men and women though. If the initial poster I quoted had said there is a correlation between testosterone and physical strength and perhaps even aggression, I'd see the merit. But he said testosterone and sexual desire. And because men have more testosterone than women, they are obviously more sexual. Its not true.
Plus, men like to downplay the social aspect of behavior to try to make the behavior they want women to practice be more rigid and seem more sound. That's why the other dude in here is losing his mind because he really wants women to believe he can cheat and its natural and ok but if she cheats she is going against her own biology. But sexual desire is heavily socially influenced. It really is.
For instance, say we take men and women's reports on desire as accurate. Consider the fact that you as a man can turn on your TV now and not only see TV shows but even commercial ads that heavily sexualize women. You can see women sexualized on the sides of buses and on billboards and in store windows. If your sex drive is constantly being primed by outside forces like this, it could very easily explain why you report a higher sex drive when asked. You are quite literally being stimulated more often. Women on the other hand, do not have comparable stimuli constantly being thrown at them, and would reasonably report less. This is a scenario where the sexes are actually speaking the truth in reporting, but you cannot tie it to any natural biological differences.