"Don't you dare leave me!" Loki snarls through his teeth, snapping to his own feet, lashing out with one clawed hand to seize Thor's bare arm in a fierce grip. "Don't. You. Dare." His nails dig into the flesh, warm and yielding over hard muscle. Blood oozes out around them.
"You say I am no monster, yet still you would flee from my presence," he spits. His head is swimming in icy rage, he can barely think at all for it, the whole room has gone cold, so cold, is that terror, deep in the pit of his black heart? "So cruel, brother. So thoughtlessly cruel. No. I will not allow it, I will not permit you to torment me in this way."