He returned the kiss with equal tenderness, as if there was a chance that she would break - or disappear entirely - at his touch. However, when she deepened it, Jack couldn't help but to the same. He was entirely intoxicated by Kate. By everything about her.
"I don't want to," he reminded her, almost against her lips, "You know I don't want to."
Maybe he had, once, but that had only been because he'd been frightened of his own feelings and foolish to the point of idiocy. He'd been alarmed by the effect she had on him, but, once they'd met, separating hadn't been much of an option.