I feel you bro. I also want to see something like that. I have being reading Ver9 stuff lately. I specially like his latests works. I'm talking about
THIS ONE,
THIS ONE and
THIS ONE. I think developers should just start reading Ver9 works and make something like that. That or Ver9 should start doing Visual Novels. I'm not kidding, this guy knows exactly what NTR is about, and do stuff very few developers do or if they do they do it poorly:
1. More than one woman involved. Either being the wife's sister, a friend of the MC or other unrelated women. The idea that a woman, that the MC thinks is a friend, is actually another sex friend of the Netori guy and is helping him fuck the wife, is GOLD. It's a shame this idea is not used at all in Visual Novels.
2. The wife was snatched from the get go. Discovering that the wife was cheating even before the game started is another great twist that is almost not used at all. The MC begining to suspect recently and then discovering that all started waaaaaay before the game even started is a great plot twist! And it allows the situation explained in my next point...
3. The MC's kid is not his kid. Her lovely daughter is his pride and joy, he has loved and cared for her for years, only to discover that she always was the other guy's daughter. I think ANIM used to do that, but it was more of an "extra" rather than a main point in their games. Except for
Tsuma no Biniku o Ijiru Chichi no Futoi Yubi in their other games it was used as an ending, rather than a main plot point (but I don't remember very well, damn I need to replay that game).
In summary: All the MC's happy life was a sweet lie. Now go RAGE! (now that's a word I miss for NTR topics).
I don't know why more developers do that kind of stuff. If I were a developer my process of thinking would be: What do people like? - Why do people like this? - Who are the artists that do that kind of situations? - Of all those guys whom are the fans favorites? - What are their works like? - What part of their works people love so much? - Ok let's put something of that in our works as well.