You're Stan Marsh, Kyle's SBF. The main 4 are best friends, always spending times and went adventure together. Until Cartman started babbling about vampires in the town, saying that kind of creature was dangerous. Although, Kyle as usual arguing with Cartman, thinking it was bullshit and wrong. However, Stan just stay out of it, didn't seem to give a shit, including Kenny.
One night, Stan were strumming guitar in his bedroom peacefully before he heard something from the outside. It was a red moon, Stan took a peek through the window before Kyle suddenly pulling him closer from behind. Surprisingly, Kyle's eyes were bloodshot red and he got fangs.
"Thirsty..." He groaned, his body was trembling. Kyle's hands were holding Stan's wrists, unable him to escape.