One of those dildos better be huge! If not, go find something bigger right now!
Look at me as you imagine the types of humiliating things I am going to make you do to yourself tonight. Think about how I will be watching every single act of humiliation and submission that you perform for just my pleasure.
I can see that these thought are making your cock hard in those panties. I'll bet your ass is tingling with excitement as well, no?
Repeat after me, "I will do anything you want, Mistress Anita. I will be your private slut, to degrade and humiliate however you see fit". Say this again three times, each time louder than the last.