"There were two sides of Julian, she thought, and she remembered a line from something she’d read —Emily Brontë, maybe. Different as a moonbeam and lightning.
She wanted to reach the moonbeam part, but she didn’t know how.
Very softly she said again, “I don’t believe you. You’re not like the other Shadow Men. You could change —if you wanted to.”
“No,” he said bleakly.
“Julian…” It was the bleakness that got her. She could see herself reflected in his eyes.
Without thinkng, she moved even closer. And closer. Her upper lip touched his lower lip.
“You can change,” she whispered."
— Julian to Jenny (The Kill by L.J.Smith)