She goes to his house one day when his parents are out of town. She's wearing a really short skirt because she had just bought it the day before, and part of her thinks that maybe he'll like it. Part of Rachel hoped that she could maybe seduce him with it. Instead, he just smiles at her when she's shivering because it's the middle of winter and her skirt really is too short, so he gets her a pair of his sweatpants. She puts them on he says that she can have them and then she wears them to bed for the next three nights because she has a piece of his clothing, and well she loves them, just like she loves him.