I have a pet hypothesis that, on average, those into step porn are more likely not have grown up with a sibling of the gender they fancy. I reckon those of us who did are more likely to repelled by anything alluding to incest.
People who grew up with ACTUAL hot step siblings notwithstanding.
PornHub should do a poll before the content is watchable 🤔
Stick to Serbian, Slav productions. They’re a goldmine of porn.