Don't allow her release

You look at her furiously masturbating while you smear pre-cum and saliva on her face with your cock, you let her hang for some time before finally speaking.

"Don't you dare cum, slut! And stop telling me what to say or do, now you have to be punished. If you want to be MY whore you better learn to behave." You say indulging her submissive nature.

The effect is even better than what you imagined, her masturbation almost stops but her moans increase in intensity. Her breathing is labored and every time your cock makes contact with her face she let out cute little moans while trying to nuzzle it before it leaves.

"I'm sorry master, I'll be a good little whore ... please, can this worthless whore cum? Please!" She begs you. You can see the milf is not playing anymore. you're pretty sure if you'd tell her to get dressed and leave she would without giving herself the release she obviously needs.