There will be choices you are locked out of if you don’t meet the requirements. And at some point of the game you will of course have to choose. That said, my plan is for these choices to be in the "end game", and for all story branches until then to lead back into the main story.
In general, I want to keep the paths as open as possible, although I already know that this won’t be doable all the time.
While I love the idea of BE for Emilys corruption path, I decided not to do it, as that would mean I’d have to do two renders for every screen she appears in from that point onward. Instead, there will be like one or two growth spurts in the course of the game regardless of choices (these should be pretty minor and shouldn’t change her aesthetics to much). Emily with a full set of big breasts will probably only appear in the epilogue.
That said, here’s a render from the next update: