As a closing note to all of the cucking discourse going on.
I've said my piece, admitted my poor wording in some cases, and proven my points in others. I won't be providing any further responses to comments regarding the definitions and debating what is/isn't cucking, other than to redirect to this post.
My official and final stance:
Cuckolding/Cucking/Cuck -
Each of the definitions above tends to run in a common vein of the situation being a way to demean, belittle, or negatively impact in some way, whether willing or not. It also tends to insinuate that said actions are performed by a 3rd party to the relationship.
MC and the core group of girls will all be in a committed relationship with each other. Summed up, a polyamorous relationship.
To that degree, I don't classify some of the girls having fun with each other, as a form of cucking. They are/will be in a relationship with each other, just as much as with MC, and will be free to pursue passion with each other based on their preferences. It won't be rendered or told in any manner that presents it as a "feel bad" experience. Hell, most of the time, you won't even know some of the girls had fun with each other unless they said girls mention it in passing or if MC catches them exiting a room with nothing on but well fucked and pleased expression.
If you aren't into some of this, that's understandable. You can ignore any scene you don't want to see by just holding the CTRL button down for a second or two and blowing clean past it.
I'm going to develop the game with the intentions I have and there's not going to be much ability to sway me from my course. It's one thing if you present me with a logical and objective argument for why I should change something, but if your point is subjective bashing, I'm just going to further cement myself in my ways.
I can't reasonably implement avoidance routes for every scrap of content that someone doesn't like. Doing so would devolve into numerous routes I'd have to constantly spend time on rather than progressing the main story. Additionally, it would require me to account for those numerous routes/blips in the story from now to the end of time. That's simply not reasonable for me to put effort into vs. my just wishing you the best in life and that I hope you find another game that fulfills your desires.