Vianna's eyebrows rose at Ferris's response, not expecting it at all. "What-- are you serious?" she asked with an amused grin. "You're joking, right? My Professor wouldn't break a rule, this has to be a joke!" she teased him before laughing lightly, completely amused, though she really wished the boy could stay at her side for the rest of the night. She wasn't sure how that would go with her brothers, though.