Mistress BlackDiamoond had seen how her lesbian slave was checking out her ass and she knew that the slave admired her and wanted to have sex with her. But instead of doing that with the slave, she made the slave lick her ass. She had no choice but to do what the mistress had ordered her to do. Funny enough, both of them had a great time although for different reasons.
Mistress BlackDiamoond wanted info from this girl and she could tell she was very curious sexually. So she exploited that weakness and she got the girl to try some naughty things she had never tried before. She was turned on like never before and she got an orgasm she had never had before and she was dying for more. That is how she told mistress BlackDiamoond what she wanted to know.