If you are interested in male chastity, then there’s probably already something going on in the relationship where male chastity would be a natural enhancement. To push him further towards the chastity lifestyle you could follow a programme like this :

1. He wears the device for most of an erotic session. In return, you wear stockings.
2. He wears the device for all of an erotic session but gets to jerk off at the end. In return, you wear stockings and he gets to use sex toys on you.
3. He wears the device for all of an erotic session and overnight. In return, you wear stockings and let him watch you masturbate.
4. He wears the device all week, for the entire erotic session and overnight. In return, you wear stockings and perform any sexual act on yourself that he asks you to.
5. He wears the device all week, for the entire erotic session and overnight. However, the rules now change. He has to earn erotic activity with additional days of lock up, for example, one day per orgasm you have.

The main thing is to offer him wild erotic experiences, but at the price of wearing the chastity device. After a while, there’s a chance he will think this is a fair trade…