I have another one that'll either be called "Little brother" or "Big Sister"

It would be either a one shot or a multi chapter one that follows Lukas' perspective.

In this story, Lukas is various ages and writing down all the great moments he has with his older sister, by 3 years, Lucy.

It would start off all cheery and pretty much end kind of sad...i wont say how though

I need some situations for the two

Little help?