I'd definitely love to see a cute outfit, especially if, like the transformation, it got progressively more... something (more revealing?) the longer the boss worked there.
I do think the juice needs a bit more something to it. Oh, here's an interesting idea: each "room" has your base unassigned person who doesn't do anything, and the various jobs take juice to assign people to, or maybe they take juice to maintain. Flavor being that the juice is a catalyst for further, more specialized transformations, while being a "milker" is the default transformation, and probably wouldn't take any juice to assign/maintain. You could even have something like different "tiers" of each transformation, which cost more juice, but in turn produce more cores (or even more juice over time for a large up-front investment for the milker high-tiers). And those could also pair with the transformation stages of the boss character(s), so you'd want to tier her up each time she finishes her transformation.