Not at all since no blood relation. It is however manipulative and evil.
You’re right about the last two things. Fucking dude was grooming her at some point.
We use a babysitter for family vacations. She’s been our sitter off and on (when home from school) since she was 18 and now is almost 23. She’s attractive, and if you asked me would I fuck her, as a man I’d say yes. But, just that I know her personally and the fact that she’s so young, it actually makes me field weird to even think of her like that. I couldn’t imagine what I’d think if she’d been in my family since she was four. That’s just straight up wrong.