I think you worry too much. :D
The important part is probably that you can chose the path yourself, and therefore you can avoid what you don't like, and pick what you want to see.
I'm confused here with you,first of all no matter which path i go down for Ash bad or good,she fucks with someone Brad or other guy,she fucks with a dude on both path irrespective of choices with someone else than mc, how is that an option then? And it's not even like i can even skip or something forget about it being avoidable,it's part of the game and if she became li then that's NTR,and moreover it changes from voyeurism scene to Ryen getting cuck for that scene.
You know what forget it,i will cross that bridge when we get there and i trust you whole heartedly that you won't make shit content, just a single scene,yeah i could digest that.