Anormalguy, I read incest in situation where it was to help a patient. I also heard incest arrangement in a family due to long-distance couple (younger brother and sister-in-law). I was only trying to know decisions people make and what kind of emotions they feel about it.
I admit I enjoy the kick reading erotica
but for that there are tonnes of literature in net. I like the tfp forum for its open discussions on sexuality.