For years now my younger sister and I have been living together in a sexual relationship. It took us both going through terrible divorces for us to break the taboo, and become lovers. I'm am 40, and my younger sister is 39, so our relationship is completely consensual. We have always been there for each other our whole lives, and as wrong as many may see our relationship, it was built on love and trust, and my sister and I just don't see what we are doing as wrong.