Its Mistress Christy again.
"Remember me from the changing room earlier? You clearly haven't learned anything during your time hear have you. Seeing as you're in no position to argue, you can worship my ass for a while. If you want to be untied, you've got no choice but to comply."
Mistress Christy ungags you.
"Ooh, I’m gonna smother your face so much. Oh I just love feeling you mumble into my already wet panties. Oh, ooooh, ooohhhh! Thats it!"
Mistress Christy is impressed enough and unties you and leaves. You struggle to your feet and go out the opposite door.