No, although chastity cages and belts are used as symbols sometimes, there is no need for them. Chastity can be enforced by word only but there definitely needs to be a strong bond of trust for it to work and lots of honesty.If you claim to be not having orgasms and you're actually cheating, it's really not fair. You need to have the trust to tell the Dom if you've cheated and take the punishment that is dished out for disobedience.