"Often!" Oh yes, she knew brothers; though Loki hadn't met Vax officially, he was aware of how Thor had described him: similar to Loki but with better hair. That would have been insulting, if Loki hadn't been used to the casual insults to his appearance. He was satisfied with it - when not blue, anyway - and that was good enough. "It's worse when he thinks, though. He takes hold of a thought and runs with it heedless of any nuance or detail. No thought is much, much easier to steer."