I think not. If she believe that her brother is not a pig you know, maybe.more on like "manipulation". Anyway, i kinda felt.that too. That we may have.been missing chapters
Nahh they may be codependent on eachother but i dont think its romantic or sexual. Afterall she hates men who look at her body, so her brother not doing that is what makes her trust him
Place your bets, who thinks that the twins are into THAT kind of relationship?
And also...are we missing a couple of chapters?