Speculations or theories about Part 12:
1. I have a feeling we haven't seen the last of the 2 evil receptionist that the MC and Nicole encountered during the Little Big Pond chapter. Especially, the receptionist who almost raped Nicole. When MC and Nicole were returning to their room the MC notice both receptionist were acting strange when they bumped into each other. It's sad Nicole discourage us from investigating further. I bet they installed a small camera and recorded the amazing sex session that Nicole and MC had. I also have a feeling they will use it to blackmail the MC and we have to figure out on how to get back at the both of them. Especially, the guy who almost raped Nicole.
2. Do you think in the next part, MC and Nicole will say, "I Love You" to each other? I'm guessing MC will say it first then Nicole will be hesitant and be confused with her emotions but later in the game she will say it to MC and they will have another amazing sex session.
3. About that huge cliffhanger at the end of part 11, I have to say that was great and left me screaming, "No!" loudly.

Anyways, I've been doing some light backreading on this thread and you guys been theorizing that Nicole will "cheat" on MC depending on the level of corruption she has. High corruption= Nicole will have sex with John and Low corruption= Nicole won't have sex with John. I theorize before she won't cheat regardless if her corruption points are high or low, but after reading the theory you guys made, I realized my theory is boring and doesn't make much sense because this is a game that depends on choices.

I have low corruption points for Nicole on my gameplay and I hope Nicole won't cheat on the MC.
What do you guys think? I'd like to hear your thoughts.
You have some pretty interesting theories:
Regarding the first, it is true that there is the possibility that the two evil receptionists could blackmail them, since if they placed a camera on the floor of the shower, it is very possible that they placed another in a place where the double bed can be seen (although if they thought from the beginning that Nicole and MC were mother and son, perhaps they removed the possible camera that might have been pointing towards the bed, fearing that one of them would discover it). However, if I remember correctly, Nicole and MC never say (neither in the hotel room nor in front of the receptionists) where they come from and the rooms were paid in cash by MC. And as far as we know, Little Big Pond is an hour and a half by train from the city where Nicole and MC come from, and about 2 hours by road (according to the conversation between MC and John, if you choose to call him before dinner).
However, personally I don't think we'll see them again, although they both deserve a beating from MC, especially the skinny one.
Regarding the phrase "I love you", I personally believe it will depend on Nicole's corruptions points. However, I think that Nicole will not say it until she knows something more concrete about the affair that her husband is having with his secretary.
Regarding the last theory, I reiterate my belief that Nicole will not cheat MC under any circumstances, but the scene will probably diverge depending on Nicole corruptions points. My theory is that Nicole and John will argue one way or another based on that variable (For example, Nicole might avoid sex by claiming that John has taken something that could give him a heart attack, something he will deny), but that both routes will end in a timely call from Silvia (who has been suspiciously missing throughout the Day 20) or in a timely interruption by their daughter Chloe (perhaps prompted by a sudden call from Beeman, who could be preparing his escape from the city and wants Chloe to accompany him, in case the playable route is one where Chloe is Beeman's secret lover).
Another possibility is that in one of the routes, due to this variable, Nicole agrees to have sex to keep up appearances, but decides to give her husband a sleeping pill or put some but that lengthens the situation until the interruption arrives, which would be created by Silvia or Chloe; while in the other, Nicole flatly rejects sex with her husband, perhaps voicing aloud again her growing suspicions about the relationship between John and Silvia, an argument that could escalate if the interruption of the moment is made by a call from Silvia.
There is also the fact that John managed to keep his member completely limp when Nicole attempted a blowjob on him in Part 3 (if you choose the option Try Calling Nicole during the night of Day 8, she will try to have sex with her husband), which completely shows that not only does he have no desire for his wife, but that he has reached the point of "disgust" towards Nicole, because a blowjob, even if it is very clumsy, usually leads to a physiological reaction unless the man is impotent, and we know well that John does not it is.
Also, another variable to take into account in that cliffhanger should be if you chose for MC and Nicole to have sex at the motel. Perhaps, John will show his suspicions towards Nicole if he can identify some of it in her scent.