Am I just weird for being drawn to incest?

So I've had these urges for a while now to have sex with my sibling, even went so far as to try to just go through with it. Thankfully I chickened out and put myself in a time out to think about why I did what I did. I'm worried that I'm abusive or just generally fucked up if I'm fantasizing about my own family. I am worried I'm showing narcissistic tendencies and I'm lost and just need some resources.