"Don't thank me." he said, shaking his head, it was a simple charm she could have done herself probably, Severus was quick with his magic though, he depended on it completely and was used to do before thinking when it was these kind of things.
He watched her motion towards the ingredients, suddenly remembering why he had been out so late, he took the bag and checked the contents, they seemed to be intact most of the way. "They are fine..." he said, allowing himself a small smile he hoped she didn't notice. "That will save me quite a bit of time. Thanks."
Maybe he should go, he thought briefly, but still he sat there.