It might be possible for other growths to be introduced but at the moment we'll probably be keeping it to how it is just so those paths can be progressed first. As for the main two girls, it is planned to add extra growths further down the line for specific growths only.
It's funny to hear that, considering that I just said what I thought. And the question is, what am I wrong about? In the beginning, that blonde and I could do ANYTHING! Literally! Well, now we have essentially two (or three, if you take into account the fat fetish) options to choose from. Wow! I'm not creating the game, so I can only write what I wrote, and no more! I don't fucking influence anything!