Well, there is a mod that will hide the BJ scene. And the cheating part is entirely up to you.
That mod is an interesting topic. I am one of the Nicole fans but I don't want to use that mod.
For me it would be like trying to erase her past. When it comes to women, we have to act like grown ups and expect people to have a past. I would not try to find and dig for it, but if I stumble upon it I'd handle it and not let it upset me.
It's a different thing than if you are a young man looking for their first experience with a young girl.
Just my approach and way to see those things, real life or games. It does prevent things being overbearing I think.
And of course, I am massively looking forward to that scene (or scenes hopefully!) with her. Should be epic.