There's no~ need to do anything; it'll be my pleasure to have you.

[Although...]

'Though, if you're any good with food, I couldn't say no.

[No seriously. His cooking is atrocious. Children have cowered from his dinners, so he just tries not to cook.]

O~nly house rules are to respect everything and everyone; the kids don't like their stuff bein' used either, but I'm pre~tty sure that comes under respect.