Sis, I'm not going to behave anymore. Don't give me candy. I only want you.
[A setting that came to me on a whim. This won't be a long story, more like a personal piece. I'll write a few lines when I'm too tired to work on my longer stories. There will probably be a lot of content that won't pass review.]
They take turns being on top.
Theme: Two sisters relying on each other in an orphanage