
Arent what's-her-face and red haired boy related?

According to the law, it can be considered incest in some jurisdictions, because the purpose of the law is to prevent unfair taking advantage of dependent younger family members, whether they are genetically close family or not, AS LONG AS they live in the same house. Once they move out, that restriction can go away.
Girly broke down...
My heart kinda shattered a wee bit on chapter 27 ;-;