Phaedra could, given time, get used to the way Castiel spoke. She just wasn't there yet. It was not like everyone in her life had been great with social skills.
Miakoda sure hadn't, that was for sure.
Perhaps you should take a small sip and wait.
Phaedra stared at him like he was growing a second head. Perhaps next he would suggest she wait an hour after before swimming.
She couldn't drink it if she didn't know the source. What would happen? True, she probably wouldn't die, but if it was alien blood, how was she to know if vampires could survive on species that weren't from Earth without some kind of detriment? The blood did not smell like food. Not even rotted food.
It just wasn't as simple as Castiel was trying to make it. And once she drank it, there would be no removing it. Vomiting wasn't something Phaedra did any longer. She'd have to lose more blood to get rid of it, rendering her even more hungry...
She needed someone smart enough to know what they were looking for in the blood packets. What could and couldn't harm her, what was actually in there.
I've already been bitten once...
She looked at Castiel from underneath her eyebrows, head still bent down and angled toward the bag in her hand. "Then whoever bit you did it wrong. It only hurts if we want it to."
And that was true. Vampires like Phaedra could use their minds to sort of force that issue, to tell the person they were biting that they were not going to feel pain, or were going to feel pleasure.
"So just to be clear, my choices are to drink this," she said, holding up the bag, "and possibly die instantly, or drink from you, and possibly die instantly."
The vampire shook her head. "I can't even make this stuff up."