"Oh, no, I've already had my shots," Jane replied, with a little bit of a quiet laugh. There was no point in hiding her smile; she absolutely would have had a much more negative reaction if she'd actually managed to be injected with something. "The caps are still on these, anyway. I hope you did notice that?"
Sif, meanwhile, had been quiet.
The comment about Loki coming back British, though? Got her to bark out another laugh.