It is just mindless pursuit of the forbidden for algorithm cheering reasons. And then you need to have had hot sisters to lust after growing up. With so many one children families you end up with a relatively small proportion of the population that could even care.
On the other hand, adding one incest adjacent keywords to the title, if it means 3% more clicks they’ll do it
Pornhub taught me people like incest. Maybe it’s related to game of thrones?
It is just mindless pursuit of the forbidden for algorithm cheering reasons. And then you need to have had hot sisters to lust after growing up. With so many one children families you end up with a relatively small proportion of the population that could even care.
On the other hand, adding one incest adjacent keywords to the title, if it means 3% more clicks they’ll do it