Most people that I know who are in femdom are not cuckolds.
They may wear a cock cage so that their women control their penis/and as a sign of obedience but their wife is not using the relationship as an excuse to fuck everyone else. She just wants an obedient/better version of him.
If the roles were reversed in a male dom story, most cuckold stories would sound like the man is a sex addict that ignores the needs of his sub.
What I would prefer to see is a story about the day in the life of a typical femdom/flr relationship without a lot of complexity.
I'll give you an example. I had a friend who was a former British Royal Marine. He was brash/foul mouthed and always arguing with his wife and two sons.
When he retired, the family moved into an RV to travel, including his two adult sons.
His wife's solution was to introduce him to FLR/Femdom. He does not openly engage in sexuality around his sons but they know that wife is the boss - she settles all arguments with them, resolves conflicts, makes decisions on where to travel, and financially.
He is happy now - he drives/cleans/serves obeys. He is not feminized - although he at times is spanked. I suspect that if someone were to start a story just going through how a typical day works for the main character and go from there it may be a lot of fun to read.
Begin with breakfast, move on to perhaps shopping and then the evening. I am not suggesting writing a story about my friend - only holding it up as an example where the wife wants him, she loves and adores him, she just wants the best version of him to worship her as his queen.