As a male sub, I like the idea; the longer you go without a release, the more tractable you are, the more you are willing to totally surrender your control to her, and the more you are up for intense D/s activity. And when you finally do release- at the time and manner of her choosing and according to her sadistic whims- it is usually far more intense than any "Vanilla" sex can ever be. I also enjoy the thought of her being able to enjoy far more orgasms than I am allowed (in any matter she chooses) while I must await on her permission- that is hot!

Perfect!
It does make the climax harder, for sure, to keep edging.