So how exactly do you get the other girls to tier 7? I got the first one but there are no more special prompts to talk to anyone and my attempts at just milking them till something happened yielded nothing.
If they're naked they need to be clothed, otherwise you should just be able to talk to them and say that they can continue the experiment.
Gotcha, seems like it shouldn't matter but if it's still a requirement then it probably would be best to let the player know.
