>>10521001>fucking your own sister/blood relativeThat's greedy and pointless. I mean it's fine if you love her but separate your arousal for her and put it on other girls/women that way if you ever have a gf or whatever you have double the arousal yet don't have to act irrationally or like a sperg everytime you're around her or use her up. You're not as much supposed to do this consciously/force yourself but let go/allow it flow in another direct. Don't kill the arousal, redirect it.
The desire to fuck something doesn't come from said thing or person it's from you. Things are not inherently sexy or arousing,
I mean it's fine if you fucked your sis because you were curious or something but the idea isn't to be ashamed about it but just realize it was pointless in the first place and move on