dolf250 --thanks for your comments. Unfortunately, this is prevaling thought regardless of orientation: That the INSERTER is dominating the INSERTEE. BAH.
This is clearly not always the case or you would have neither domineering women nor power bottoms.
I can be aggressive and dominant or more submissive and obedient and it all depends on shared chemistry. These roles have nothing to do with my topping or bottoming.
My last BF was a "power Bottom" (90% of the time) and he was also a Daddy. For 80% of our sexual interactions, he called the shots, was more the aggressor and barked the orders, Even from the bottom.
"C'mon boy--that all you got?!? Fuck your BEAR!!"
"Gimme that cock, Cub!!"
"That's right, FUCK ME!!"
Then on other occasions, he would like to be more submissive while I fucked him. We also took turns being "in charge" when he topped me. I like to "daddy" and I like to be "daddied," irrespective of the top/bottom chemistry or preference of the person involved.
It's so much more complex than our feeble sterotypes would allow us to believe.