183 Votes in Poll
I literally just got in here to ask the same question! My sister-in-law and I were arguing about this throughout the show. I said it doesn’t matter if they were raised like siblings, they’re adopted as siblings. I consider it incestuous. She disagrees. She points out that they aren’t raised like siblings but more in a boarding school environment, so they’re okay and it would’ve been natural for them to develop feelings.