Phaedra made a slight face at Cas as he went about finding his supplies. The avoidance of an actual bite was, in her opinion, overly cautious and also stupid. She wasn't one of the things Cas had been bitten by before. Though, Phaedra sort of doubted that Dean would be opening a vein for her right now.
Why people just couldn't trust that she wasn't going to rip them apart was both beyond her and flattering to her.
She didn't tell him that he didn't need to disinfect his arm, either. Phaedra could heal him outright at the end of this if he would allow it.