It was too big for him, the big white shirt. And it was a cold day. He liked being warm on cold, frosty days like that. So he wore the big white shirt and tucked it securely into his jeans. The comfortable overlap between his underwear and the shirt would keep his back warm even when he sat down.
Once upon a time, two lovers stood on a station platform. They were saying goodbye.
They kissed slowly, their breath clouding white under the strip-lights. She put her arm under his coat and slid it under his sweater, hoping to steal some heat from his back. Her hand was stopped by the big white shirt, and she looked at him. He smiled apologetically as she pulled a handful of the shirt out of his jeans, and felt a shiver along his spine with the cold air.
When her train had gone, and her on it, he climbed the stairs to his platform. Then he boarded his own train home, wandering down the aisle to a suitably empty square of seats. As he sat down he felt cold rise up his back, and immediately felt her phantom lips on his once more. Then he leaned forward to tuck his shirt in.