"Times have changed! Scaring isn't enough anymore!"

Gothic sentient swarms of bugs. Compared to the last insectoid monster-girl this series had, still a vaaaast improvement.

Plus, you're acting like the reveal that Vampy Mommy is actually a shortstack the entire time would be a bad thing. If she can seamlessly pull off giantess mode, then you've pretty much got two waifus in one.