You’re not going anywhere. You should really let that idea sink in for a second. Sure, you have a safe word but you know as well as I do that your safe word is a last resort.
And overstimulation is hardly worthy.
So just bite down, and as this machine fucks you at a mile a minute and you have no choice but to cum uncontrollably over and over, you should relish in the idea you’re being a good little submissive.