For me the idea is very good and smart for the story, but execution is not.
That is my feeling as well.
I think the jealous (or even harem) angle are the only next moves to keep this story interesting, but the execution.. WTF.. so now they prudes are simply fucking in front of their friends?
IMO the best angle would be for Daniel to fuck Sofia and Lana find out secretly, maybe even watch a little, get excited about it or something.. but then finally admitting that her son is the man for her or something..
That would be perfect in the previous night.. the way I would do it was, Lana has a lackluster fuck with her husband, then she goes look for Daniel to satisfy her and then find him fucking Sofia.. then it could be 2 ways, either she interrupts them and or she watched. That would be the direction I would took with the story.
What is funnier to me is that Daval said the reason he introduced the uncle Peter in MT was that he found boring to have the CuckKid and the aunt fucking for the 3rd time.. but in ID (8th edition) there is basically only Daniel fucking the mom, even with a lot of hotties in the scene. What is the point with adding so many hotties if the MC is not banging any of them?