It depends on the guy and the chemistry but typically, I prefer to dominate the first time we have sex, or at least start off dominant and then let him take over. As far as top or bottom, it could go either way but if it's my turn to be in charge, I will end up riding him at some point. It's all so good!
I tend to agree that it depends on the chemistry. Its hard to say what is going to happen before hand because so many things tend to change in that moment of time. I typically let the guy lead because Im usually shy the first time, but as soon as I warm up its like something he really wasnt expecting..lol
Well I like to be on top straddling him when he comes for the first time. I just want to watch his face and see the effect I have on him. Also I get more stimulation in that position so it's sort of greedy of me I know, but hey, a girl needs to know what works for her, right?