I'm 99% certain that, as usual, they're gonna throw some random NTR in mid-game. They pretty much always do. However, Naomi was pretty clear that she's only planning to tease the old geezers. She implied she intends to show them what they can't have, and walk away once they sign. Again, though, I don't doubt the NTR is coming, and she does seem one of the more likely culprits.
I'm more worried about the twins. They're way too close with Jake, despite having just met him. Definitely feels like a typical Inceton setup for forced swinging, or other such nonsense. "It's not NTR, we swear! You're just helping your best friend lose his virginity!"
On a somewhat unrelated note, I'm pretty sure the store owner used to be a whore at the current V resort. I'm guessing something horrible happened to her while she "worked" there, and that's why she had to sign a bunch of NDAs, to keep them away from her.