I had two kittens who were siblings and grew up together. One day, during mating season, I noticed a big, battered tomcat lurking about, chasing the female kitten who was by then over six months old and probably in season. She didn’t know what was going on with the persistent male cat who kept chasing her and finally pinned her down as she growled wildly and threateningly at him.

All this happened as her sibling, a young male, looked on noticeably perturbed. He just watched from the sidelines (like me).

One day, not long after, I noticed her brother acting peculiarly, looking at her with a different expression in his eyes and she was very cranky with him, swatting him and snarling. I finally understood when he started to chase her and mount her.

I felt disgusted with him but understood that it was instinct with cats and did not interfere. I wasn’t going to apply my morals on them.

With regards to humans, any form of incest is abhorrent to me and when I think of sexual relations between close relatives, it is repulsive and unnatural.

Although in Arab culture it is quite normal for first cousins to marry, I have never felt more than sisterly love for my cousins. Any other union would be farthest from my mind.

I recently read a thought provoking account in the Times of a woman who slept with her brother for years and shared a very special relationship together with him: I had sex with my brother but I don’t feel guilty

I was surprised by her account as it was the first time I had come across a balanced, frank piece on that kind of taboo relationship. Usually, there are very sad accounts of incest which only serve to inflame my emotions further against child abusers.

What happens though when there develops a consenting, romantic, sexual relationship between siblings close in age? Can it ever be right?

Reading through the comments on the linked article, amongst the rejections there were some people who shared similar experiences and many who sounded sympathetic.

Is it progressive to be blasé about such an issue as incest?

Or is there another side to this taboo issue that only those in mutually consenting incestuous relationships can relate to?