> I don't get the step relative thing, but if you do, but don't want to do anything to your step child.

I do not understand such desires either. Though, you reminded me of an 'Ask Me Anything (AMA)' on Reddit I read many years ago. The subject of the AMA was a person that worked in the adult entertainment industry for some significant amount of time. Not as an actor or actress, but in the 'behind the scenes' business/production operations.

I still remember reading a question someone ask which could be paraphrased as, "Why does the industry push so much taboo titled and themed content like: just turned 18, barely legal, incest, step-siblings, step-parents, etc.?"

The person answering questions responded by stating that it wasn't the industry that created a lot of this themed content in hopes people would expand their desires. Rather, it was the industry directly reacting to what people seemed to want in the first place based off the analytics they could capture. The industry started to notice that content with such themes really outperformed. In other words, if you want your content to be competitive, then it's essentially obligatory.

> Do the politicians have these fantasies and are in denial? Think they can 'control their urges' but others can't?

These days it feels like: yes, they have them. No, they are not in denial, they just feel like indulging them is for people like them and not people like you.

> Christ, I don't get the step relative thing,

It's not a "step relative" thing. It's a relative thing. Sticking "step" in the titles is a dodge.