No pleasure for his dick – Male Chastity
He mustn’t have “conventional sex,” do not offer him “vanilla sex”, until he understands his dick is not necessary anymore to give or get pleasure. Sex for him, must be limited to serving you orally. You can masturbate him some time in a humiliating way, or with lack of interest. Better if you do it with your feet. Your mouth will never touch his penis again.
Having his dick caged, has no real effect on him giving you pleasure with his mouth, but while being frustrated by the fact of not coming for weeks,, his sexual tension will arise dramatically and, of course, his desire towards you. This produces his wish to see you get pleasure and sexual satisfaction many more times.
He will be your whore, always in disposal to please you. He will need to be fucked by you, and he will do anything to get it.
Source: Femdom Planet
That sets the bar. Doesn’t exclude vanilla… Just witheld until he learns.