I don't see any harm in step siblings getting married to eachother, in fact it is better than living under the same roof without having any relation.. so she has to be in hijab all the time .đ I know 2 couples who got married and they were step siblings. Alhamdulillah they are happy.đ
I mean looking from tht angle, there would other na-mehrum in the house anyway like housekeeping, so the step sister would have to cover herself anyway.
Tht probably came off as very insensitive. đItâs not. There might not be any Islamic issue with it but I feel a sibling is a sibling regardless if it a step sibling or half sibling. They r part of the family.
Itâs a similar issue I have with cousin marriages dramas show. Specially the ones tht live in the same house.
on a side note, does the step father qualify as mehrum?