Until she have an orgasm

Mistress Natali has known as very sadistic woman, but she also know what is needs to her dome. Red haired Nataly at first ties her voluntarily offer by strong ropes and then begins to scoff at her dom... until she have an orgazm. And this action repeats one time, two times, three and more, until the dome-woman (or man) grows weak. As she wants before. It's the time by mistress to self physically satisfy, as she already satisfyed mentally by seeing her fallen offer.

See beginning of this action