Jack hadn’t thought of love as a promise before—a promise that, even when the world was falling down around him, would stay kept. But without Sutton saying a word, he knew that there would be comfort when he couldn’t sleep tonight. And tomorrow and the day after, there would be a home to go to, even if it was no more than a pair of arms around him and a head tucked close to his in the darkness.

He laid his head on Reid's shoulder and shut his eyes, buoyed toward sleep by the affectionate comb of fingers through his hair. He could stay just so, and be content for all his days.