You have to make the step-sister horny, dont know how much exactly, just that she needs to be horny.
thank you cucalover4ever
get her to 50 percent lust. its not easy to do that, and will likely take multiple in game days. then, do the midnight snack scene.
ah that makes more sense
also i dont know if its true but doesnt lust decrease after every day or is that just me?
yes. it does, but not all the way.