Put that key aside for now. We won't be needing it just yet.
So what does it feel like, slave - to not be able to touch where it aches? I can just reach down here whenever I want, but you - you have to ask permission, to jump through hoops, to do whatever mistress tells you to. The thought just drives me wild. Does it do the same for you?
And what would you give, to even touch this? So close... but so very, very far out of your reach.