It depend on the situation tho . Not all people consider their step sibling as actual sibling . Because it really cant be considered incest at all unless they didnt know they were actually not related or grew up as step sibling and treated each other as sibling but then started to develop romantic feeling for each other. But if they never treated each other as sibling , never saw each other as sibling then its not . Its not always an issue people just like making it an issue , just because your parents married doesnt mean you have to act like family with who your father or mother married.
Its only an issue if they step sibling didnt know they werent actually related but still fell inlove with each other or if they did know but grew up as sibling but fell inlove with each other . Either of those 2 scenarios can be considered incest , but in alot of cases it isnt . Just because your parents married into another family doesnt mean you have to be a family with them . If they never considered their step sibling as their real sibling and never treated them like one then its not .
i never got so many replies on one comment
why is everyone mad they’re step bros isn’t that like the whole plot of Cherry Blossoms after winter and Love or Hate