Held captive as a girl by mistress

 Just because I am finished with you does not mean you can leave. 

You are going to stay here only till I need you again.

I am sure you think you have things to do. But I don't care. You should have thought about it before coming here. 

If you try to run or make noise I will have to tie you up and gag you. I may not untie you for a month.