Alastair ignored the break of control and the questions, focused instead on what was skimming across the surfaces and moving in the depths of her mind now that it was freer. Not broken, not yet, but vulnerable. He would learn all her secrets in the next several sessions.
"Ruby, Ruby, Ruby. For all your delusions of having some humanity to cling to, you really don't." He moved to the other side, testing the wrist strap on her other arm before cutting there as well. "All those people you know, who took you into their home, who stood up for you even when Sam turned his back. Sweet Mary and her motherly ways – I bet that appealed to your delusion of humanity, having a mommy figure. And John, who you hung around in the Pit to get the idea for your little plan, defending you, accepting you."
He shook his head, cutting deeper. "There's Dean too, good old Dean, one of my best pupils and with so much potential still, even though your angel boyfriend put my plans on a temporary hold. He can't really help siding with you, neither he or John can. Now that they've been to Hell, the gap between them and demons like you is so much smaller. You're kindred, even if you aren't all of the same kind yet."
He grinned, raising the knife to tap the tip against her cheek, as one might lightly scold a child. "And that's not all. Little Ben. I did try to get him as a playmate for you, but that was, unfortunately, delayed. Train him up you, he might do better here than his father. Those Winchesters, the capacity for cruelty gets better with every generation."
"And all of them," he said, pausing to tick the names off on his fingers. "Mary, John, Ben, your angel, those others you call 'friends' – you'd hurt them all, you'd kill every last one of them, for Sam. Think of it, you shooting that lovely woman in her sleep, you cutting into that little boy – just because you thought it would help your little protegé."
With a chuckle, he drove the knife cleanly between the bones in her forearm, an unerring and disturbing precision. "But none of it ever will. You'll kill them all when you realize you can only control him when he's alone, because you are, in the end, an incredibly devious little slut," he said, rocking the blade slightly, debating on replicating the same move with the demon knife, "and when they're all dead, he'll fail your plans and you'll have nothing."