A single clothespin, snapped onto the top of a boot, or the shoelaces, or dangling from the bottom of a blouse tucked into her skirt...

You will be constantly on her mind. She will be wet all day, and will throb with the need for release.

The next day, the same routine, but make her hold it in her hand and to masturbate everytime she visits the restroom. No orgasms yet. Then she must put the clothespin back in place and return to her normal activities.

And the next, masturbating until she comes... pin in hand, every visit.

The next day, she is commanded to visit the restroom hourly, only touching, no coming.

The next day, an orgasm every other visit, and the next, every visit.

By the time the routine is this far along, the next time you see her, a single clothespin in your hand will make her swoon, make her need to come... and now, the voice training can begin.

Imagine, telling her to come as you gently capture her nipple with the evil incarnate clothespin... and she does.