You give her several screaming orgasms, which makes you worry that she is getting too into the role she is playing...
But eventually she pushes you away, and says:
"You've gotten so *good* at that! It really turns me on to have you eat me out when I'm in charge!"
You can't help yourself, and say: "I'm very happy to do it." You really are, as besides being a turn on, you know you won't cum when you are eating her out, which is a relief from her constant tease...