Mistress is ready to play, you're on your knees before her and she makes you worship and lick her boots while she tells you what she's going to do to you.
She's ready to start training you to be her perfect sissy slut, so she starts with your cock cage, afterall, you don't need a cock now you're a sissy. But you do need to learn to suck my girl cock.
Mistress uses your mouth and makes you be a good girl. You suck her cock until you cum in your cage, like a good slut.