Vianna's forehead creased slightly at Ferris's words, not necessarily happy that she couldn't tell him 'of course I'll stay with you' or something of the sort. It was a huge step for her brother to allow them to even sleep in the same room together, she didn't want to end up breaking his rules and going back to square one. "How about... I'll stay with you until you fall asleep?" she suggested, as it would probably be easier to separate when one of them was already deep asleep and not really aware of the other leaving.