How do aggressive females have sex?

you know i always wonder how controlling and bossy heterosexual females operate in bed, You know the ones that act very masculine especially in the workplace, I cant imagine how they have sex since the female for the most has to be in many submissive positions when it comes to actual intercourse (thats just how nature works sorry.) However I imagine they would want to feel in control like they are in everything else in their life but thats just not possible when it comes to sex. So what do they do?