Gracious, washing so many sheets so frequently would be quite an undertaking!

[And that's exactly the effect she was going for, if not necessarily consciously. A little place to themselves, but not really a place where they're alone. It's sort of like a nest, if you think about it.]

...Rii-san, there is no reason to be dishonest with me. You are a terrifying master of sleepover games, and everyone in this house is well aware of this.