For the past couple of years, my younger sister and I have been having sex on a regular basis. I am 41, and my younger sister is 39, so we are both well over the age of consent. I know a lot of people will see this as gross, but I must say, of all relationships I've been in, in the past, I have yet to experience a love, and bond as powerful as the one my sister and I share. It would be safe to assume we are in love with each other, as we have no intentions of dating anyone else. If you met us, you would have no idea we were lovers, only that my sister and I are very close.