I am a 24 year old white female that feels that it is my place to serve a Black Master or Mistress. I exist for your pleasure however you wish to use me.
I looked at your ad and thought that it was fine - I'm all in favor of reversing roles that are antique.
But then I looked at your profile just out of curiosity, and found that you believe that white women exist to serve blacks. That is racism; applying your personal desire to all white women is simply too big a step.
I am sure you will find some black man or woman to take and use you and, I hope, satisfy your desire. But not all white women, nor all white men, need serve blacks (or, substitute race here). I personally do not find M/s relationships founded on race to be well-founded.
<>Yes, some of my best slaves have been black girls, and Asian, and white. But not because of their color, except as it pleased my eyes.
I am white, btw.