I'm a little fuzzy on the routes and exactly what they will have, so I think it's best I simply ask directly.
I want Milly to be a dirtbag rapist, but I only want her to attack other girls. I do not want to do futa x futa. I have no opinion on Milly stealing or being stolen from, because I don't think Milly really cares about any of the girls she's fucking beyond them being the nearest convenient hole when she gets horny (or at least, she wouldn't care on the route I am aiming for).
Which route, if any, will give me what I want? I will add that I also want Milly to fuck her mom and sister, but I suspect that's going to be available on all routes anyway.