"Implied posibility" you literally have the mom leaving three nights in a row to go work at a "genltemens club" i.e. brothel, than have her jumping around the next morning happy in her after sex glow...
If that ain't obvious off screen NTR, I dunno what is
Your lie ain't working bruv, just be honest that it's an NTR game and let people ignore and go next, no need to deceive to milk them a little before you inevitably add what's off screen on screen.
And even if, for a moment, I believe the bs that she isn't doing her job at the club... you already made her a whore by having it her previous job... so she already did it once... now you expect people to believe she's not doing it properly the second time round? bruh.
What next, grass ain't green?
Even if you were possibly not going to (which is bs, you wouldn't have that plot if you weren't already)... you already confirmed futa, making it "cuck" content for average vanilla, who will call it NTR anyway.
And as you already see, those into that are the only ones defending this game... so you gonna add it for them, cause they'll be the ones playing, vanilla peeps have already written this off the moment they see that plot, or read your comments, not mine, YOURS, and it will turn them off.