I have some trauma related to incest (which, obviously I'm not going to get into), however, I have a couple kins that I'm aware of having dated siblings in my canons.
Normally ships like that make me anxious, but I do find some comfort in these particular ones, and I wish I could talk about these details of my canons more openly in kin spaces (with warnings obviously), especially without people seeing it as an excuse to ignore my boundaries and bring up incest to me at random (which would probably be more likely to come in the form of antis sending me hate). I have to be careful about how and when I approach the subject of incest or it might trigger my anxiety and intrusive thoughts.
And yet, these are parts of my kin canons that I can't control, and I'd like to explore talking about it more- and hopefully eventually I'll immediately think of them instead of my trauma when I randomly encounter the topic of incest.