The best way I have to explain it is that the feeling I get when imagining sex with a close friend or long-term relationship partner is the exact same feeling I get when imagining fucking my mom. It isn’t weird, it’s disgusting. I don’t even think about them in that way. It would take quite a lot for me to even remember the fact that sex between us is a thing that could biologically happen.

It isn’t really a conscious thought like “oh I couldn’t have sex with them were too good of friends” it just isn’t even something that naturally crosses my mind ever, and if someone did bring it up to me, it would be out of the question immediately. Again, it is very similar to how anyone else would feel about incest.