 CONT: When Morvern gets locked out of her hotel room in Spain and  spends the night with a boy down the hall, her underwear and bra are  beige. But when she returns to her room the next morning (before she  would have had a chance to take clean clothes) they are red and  black. Since the boy was rooming alone, it is unlikely that he had a  girls thong and bra with him that was clean and just Morverns  size.