Looking for a disappear story

[countdemontecristo]

It has been a long time since I saw this story. It was about a woman who was well educated and wealthy but decided she wanted to disappear so arranged to sell herself into slavery, the guy who arranged to sell her also bought her.
He put her in a latex suite with a hood gag and ear plugs, then she was placed in permanent sensory deprivation locked into a chair. She was told she would never be allowed to speak again, and would only very occasionally be allowed to hear her owners voice. I remember at one point she asked if her owner would rape her, and he said something like "I'll have sex with you when I want, but it won't be rape, you are a thing not a person."

Does this ring a bell to anyone?