I've figured it out. Kris, Noelle, Azzy, and Dess were out exploring in the woods. Kris had to take a leak and went to piss behind a tree. The tail that must not be followed is a snake that bit Kris on the dick behind that tree. Kris cried out and Dess came and said "oh no I gotta suck your dick Kris. I gotta suck your Lil Krissy dick to get the venom out now. Awe cmon Kris just one little suck, it'll save your life! Sorry Krissy, it's the only way".