SoKlueles,
Don't believe the reams of bull you are going to read on this thread. 95%+ of men are turned off and intimidated by an agressive woman. And the ones who say differently are mostly full of it, or not very self aware.
Aggressive translates to easy in a guys mind, and nobody wants to be with a girl they think is easy. That's basic, all women know that to be true,whether by personal experience,or the experiences of their girlfriends.
Just like most guys know that if they meet a girl they just want to shag, they have to be something of a jerk. Because if the woman thinks you are "desirable" in the long term potential sense, she's likely to move slower not to screw things up. But if she's attracted in the "but I would never want to take him home to meet mom" sense you are far more likely to have some fun that night. And before you say "that's not true" really think about it and what you have seen. Although nowadays everyone just wants to screw, so either things are changing, or I'm no longer considered a good catch.
The point is that if you're not perceived to have put up something of a fight, he's going to think anyone could have had you, even if you spend ten hours telling him "I'm really not that kind of girl." If you just want to have fun, then go for it. If you are looking at him as something potentially more, then you'll have to slow it down. How long can it take anyway for the guy to make a move. If it's just that he hasn't on the first couple of dates, it may be because he does like you. It could be just that he's incredibly shy also, but that isn't necessarily a bad thing. At least you won't have to worry as much about him being out on his own