You hit the nail on the head, Terror. I mentioned something similar sometime back. Whenever I saw comments along the lines of, "Peter is better than David, he fucked Sarah better..." I'd always think to myself, "No he didn't." If one pays attention to Chapters Four through Six, they're virtually the same as Chapters One through three, just with a different male. And there seems to be an unusual preoccupation among Uncle Peter's fans with his penis size. Now, granted it's no secret that I've mentioned liking Uncle Peter's scenes with Sarah better, but that's not because I like the old-geezer, young beauty dynamic in particular, although I can't deny that plays some role. I like it mostly because he's her uncle, and she's his niece. I like the power-dynamic; I like that Sarah was deferential and obedient toward Uncle Peter, which is understandable because again, he's her uncle. I also like adult incest, which is rare. Most of these male characters despite the disclaimers look like minors. And while I'm no where near old enough to identify with Uncle Peter entirely, I'm not young enough to identify with David, either.
By that very same token, Terror, perhaps the controversy surrounding Uncle Peter's inclusion outside of Daval's dishonesty with his initial intentions is that a majority of the audience don't identify with Uncle Peter. Most of the male audience is probably in their late teens and early twenties. Of course they wouldn't identify with Uncle Peter. There are some facets of Uncle Peter with which I can indentify, i.e. cold and calculating, and I have siblings with children--my eldest nephew, a young adult, probably being the same age as many of those who even post on this thread. I'm not particularly interested in this Peter comic, though I've obviously seen the first released pages since I used the nurse in my rankings. Honestly, if Uncle Peter is not with Sarah, I don't really care what he does, or whom with. I like the incest, I don't care about an old fart pounding young nurses.