If adopted siblings marry each other is it incest?

I’m unclear exactly what you’re asking. If the adopted siblings are biologically related, then absolutely it’s incest. If two unrelated children are adopted by the same set of parents and raised as siblings, then I think it’s up to their culture whether or not it’s deemed acceptable for them to get married or not, but I think the vast majority of cultures today would still consider it incestuous.

I'd say kudos to parenting....

You and your step sister have our blessing

No but ewww

It's not incest. would love to hear more? unless the adopted sibling is a cousin?

Depends. Do you live in Arkansas or Tennessee or Kentucky?

No.And besides whatever works for somebody else it's not my business

no, why do you ask?

No it's just weird.

No but gross

no but against public policy

If adopted then no not incest. Same as for step siblings.

Yes, if they are birth children of the same parents. If they are not, then it is not incest, but still a bit creepy.

If they're no biologically related in anyway, no. It'd just be creepy as hell.