Mystery Mistress 7
Mistress Fire's semi-robotic voice pulled you back into the room. She was reading to you. Reading a letter you wrote for her. She had asked you to compose a letter begging her to use your face as selfishly as possible in exchange for unlocking your cage. It was filled with lines like "Even though I love being locked like this," and "I constantly fantasize about my tongue on you - in you," and "Though I will never deserve to be released, I beg you to have mercy and unlock me after you take all the pleasure you want." As she read it back to you now, it occurred to you that you never specifically asked her to unlock your chastity belt. You just generically asked to be unlocked. If she didn't know what you were asking, the letter could just as easily be referring to the handcuffs on your wrists and ankles ...
wait a minute ...