Does anybody else ever get the feeling that they want their sister to walk in on them jerking off while it's just them two home alone so that they can turn getting caught into fucking their sister like they do in porn?

pic related; my sister slightly resembles Jynx Maze with the face and definitely resembles her with the body, so everytime I'm jerking off to Jynx Maze videos I imagine getting caught by my sister and then getting my sister to come watch the video with me, then we end up fucking on my bed while the porno plays in the background.

Am I autistic for thinking like this? Has porn damaged my mind?