At his change of expression she pulled her arms a little closer to her body. It would be her luck to make an enemy out of a professor because of her poor English vocabulary. "No... Is not a problem? Just a curious." Despite the extreme pro-pureblood environment she grew up in until Hogwarts Vriska never could get herself to care very much what kind of blood someone had. Blood didn't seem to factor in for someone's personality, in her experience.