Set some starter guidelines

"Come with me." you demand of your new superslut.
"Yes, Master." She repeats as you pull her by the arm down an alleyway.
"You will always do what I say, without question. In fact, it brings you joy and turns you on to meet my demands. You'll be a submissive little slut from now on, not just for me, but for anyone more dominant than you, be that either man or woman."

She nods gleefully, your words already taking effect. "Anything else, Master?" She asks with a new life in her eyes.

"Actually no." You reply, with a grin and a plan. "From now on, your batgirl suit needs to be more revealing. You should not only turn heads, you should look like a bat themed prostitute with easy access. Equally, you are nothing more than a simple minded whore now. So your new way to stop crime and stop bad guys is to seduce them until someone stronger, and braver than you arrives. Got that, BatSlut?"

"Ooooh this is gonna be so much fun!" is all she can respond with