The Loud House [Lucy's Vampire Reveal]

Scene from The Loud House. Ep 11A, The Butterfly Effect. Lincoln accidentally breaks one of Lisa's chemistry set and thinks what would happen if he lies about it, leading to a series of events in which his sisters leave for one reason or another. At one point while watching a newscast about one of his sisters, another, Lucy, suddenly shows up out of the blue near him. Lincoln thinks she's at least still there before she suddenly reveals fangs on her.

Example of:
Face-Revealing Turn