Having decided to take another look at my Fergie Boy incest work a few months ago, it struck me that every story was written from the viewpoint of the younger person - either the son, younger brother, or nephew.
I suppose it was that being the inexperienced one, it perhaps made it more interesting. It also made it more acceptable, showing the the younger man, who often was a teenager, was wanting this, and wasn't being abused. My incest doesn't go down that line, and I don't think I would want to go there.
Anyway, I go to wondering about the other men, and decided to experiment. One of my favourite stories is 'The Strong Arm of Dad's Law' told from the viewpoint of Finlay, the son of a cantankerous Glasgow cop. I never give much away as to what is going on his the father's head - a few snippets, but not much. So having played around, I got really into it, and wrote my first gay incest book from the father's viewpoint. And it makes for a very different read.