With each completed circle of his thumb, the tension and nervous energy gripping Sarah lost a small fraction of its hold on her, not vanishing, but not longer the sharp emotional spikes it had been. Instead of fixating only on the enormity of what was laid out for her, she focused on his touch and his words. Magic or evolved abilities, power was still power, and he had a point.
Her hands came to rest on his chest. "No, I don't think that," she said, her voice just as soft. He wouldn't let her, she believed that, and in order to fulfill that, it meant he wasn't even questioning being there for her. And why not? How much time had Jareth spent here in this city, plaguing her and then later them? The Labyrinth hadn't fallen apart then, as far as she knew, so maybe it wasn't a matter of always being there, just being the one in control.
But even with that frankly huge aspect possibly settled, there was still the rest to consider.