Is it normal that i've taken a liking to mother netorare(cuckoldery) porn?

I've always read hentai manga, but recently, have taken a strong liking towards the kind where a boy watches his otherwise noble mother get fucked by an adversary, usually through coercion or blackmail.

Thinking about the despair that the boy may be feeling really excites me. Don't get me wrong, it's not that I actually want this to happen to anyone or me IRL. I don't have any intention of cuckoldery and if someone so much as even looks with illicit intentions at women in my family, it sends me in a destructive rage spiral which ends pretty badly for the perpetrator.

The reason I'm worried is because even though I've watched fucked up porn before (most of them involve at least one of the involved parties being in despair. eg Forced impregnation), I've usually gotten over them in a while. This one doesn't seem to let go that easily.