The Rani smiled in satisfation against his flesh when he said her name, glad she knew what she was doing, that she could read him almost as well as he read her. Perhaps she was just more obvious, her desire to be in charge in life making what she wanted sexually all the easier to work out, while the Master well she'd never expected him to be quite so submissive to her wishes.
She continued what she was doing, her hands on his ass, keeping him close despite the fact it was entirely obvious he had no intention of pulling away, she just wanted to touch him as much as she could, to keep him where she wanted him.