Lady Scarlet - Mistress of Your Orgasm

I have a new toy and I want to try it with my slave girl today. It is a very powerful vibrator, an irresistible generator of orgasms, intense orgasms that only I can control. My slave is naked, tied to the bed with her arms and legs spread apart and I will decide how and when to make her cum. I immediately let her feel the vibration, strong, without foreplay and she immediately starts moaning, she gets wet and after a while a first orgasm arrives, but I continue and a second orgasm follows. And this is where the pleasure turns to torment, I am in total control, and she keeps cumming as I hold her down with my veiled feet on her neck and face. After yet another orgasm she begs for mercy and I stop and look at her while she is still shaking.