Did any robots grow up with a sister? What was it like?

I have a little sister, it's annoying. She's a brat and never did anything I said, and when we argued my parents always took her side. Now she's a lazy slob that's always bossing me around, but I want to fuck her because she's the only female my age I'm close to.

I have an older sister. We mostly just ignored each other, but sometimes she would sleep in my bed when we were younger, probably when she had nightmares or something.

Sister 4 years younger than me.
I talked her into sucking my dick once, then she blackmailed me with it for months.