Humiliation isn't the kink. Being controlled is. Being used freely regardless of my embarrassment makes me feel like a toy and that is what turns me on.
I don't have permission to cum anymore. Not that I *wont* cum, just that I never have permission. So (1) they get to watch me struggle and hold back, (2) my orgasm is tainted because I know I'll be punished, and (3) they get to punish me after.