What are your opinions? Is it wrong? If so why?
If you don't know what incest is, it's the act of sexual activities with a family member.
So unless you have somthing intelligent to say, GTFO.
Personally, I think it's okay.
It's just another human! Although these kinds of acts could make or break the relationship you have. Either way it goes, your living with them :/ (well not always)