It would not work for me - if I submit to someone, he must be a strong personality, and I focus on that.

But if that is not a problem for you, my advice would be that the Doms communicate with each other, and then act accordingly to you - meaning they set the rules and the who-does-what-and-when.
It should not be necessary that you negotiate between them. That is not your part and should not be made your problem.

Just my opinion.