Just played it through a few times, once in a confident get-all-the-girls scenario (is the Marcus-Emma NTR scene during the movie unavoidable here? There is some confusing dialogue as they return to the room involving black popcorn), once in the full NTR scenario, and one mixed. Very impressed, and I'm sure there is some content I've missed. I look forward to seeing updates and eventually a completed game over the coming months/year(s).
If your playing the Apha route you still get the Marcus fucks Emma Movie night at her house simply because she's not set as your GF for now.
You need to manually set it yourself because the game at the moment doesn't do it for you.
Mark her as yours In the relationship screen before the Movie night and you don't get that NTR scene.
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Next is Emma NTR Route I believe so logically he bangs her on movie night.
Also next is Emma Sharing Route I Believe so he still bangs her on movie night.
And this one below is for the Alpha Route and swops MC for marcus in the movie at her house scene.
And logically should stop Emma bangging anyone but your MC.
Not sure if it helps explain it but I'm hoping that it do's..