I'm THE guy, Kingston
I know it is just friendly banter. but I think she is so stressed that to her it isn't friendly sibling banter. She has no idea I like stepped up to say anything.
I know dinner is going to be great but like I said even if it isn't you best be telling her it is. I have been teaching her to cook for a couple months now and she is actually really good at it. And really enjoys it.