If you choose Bella you get a sexy scene with her. If you pick Sage you get some scenes with her as well as some of the other HOTs girls it doesn't seem to effect the story that much so far. You might as well make two different saves for all paths.
Oh okay. So it doesn't mess with the story later? Like if I pick Bella they make me choose between her and Jill later or something like that? Or if I pick either of the two then the relationship with the other isn't over? And is it just a short scene kind of thing or something that will stick with the rest of the game? So if I wanted to, I can pick one and do their scene then load up and do the other's scene and then continue rest of the game. Or is it more like, I pick one and play through the whole game... then go back to the save and pick the other then play through the whole game again?if you can choose Bella, you have to choose Bella
That said, I don't think it's a definitive choice, each path will bring you different lewd scenes, the least significant path is probably the one with Derek (which is what is offered to you anyway even if you have bad relationships with the other girls), the path with the more scenes is the one with Sage, Bella being the character you interact with the less it should be the one to prefer
Sorry for all the questions, I tend to overthink everything - haha.