According to the game developer
As for the new Emma and Storm scene, the unlock conditions for it can be a little complicated. First you obviously need to have both girls active in the game, you need to have caught Emma in class to unlock her sexual side, you need to do at least a little stuff with at least one, ideally both of them, and then you need to get caught by Xavier after that (not necessarily with either of them, just in general). And that should cause the event to trigger on an evening later. Since there is a lot to it, and I wanted to get some testing in, I've added a temporary "cheat" button for it, you can find it in the player room menu as "Teal button," and it should let you know what to do next to trigger it. This one is possible to repeat, so feel free to try to do it again (once per day though), and I might add methods for it that don't involve getting caught by Xavier along the way, since some people avoid that.
