Ass Muncher?? Wtf

What was with the random chick going to town on the popular, good looking guy's (infered from dialogue) ass? Talk about random and weird. And why were the guy's pants down in the first place? Haha.

This movie was pretty terrible all-around, but I will give it props in the random laughs category (butt munch zombie, zombie rat, teacher's animated and severed zombie head getting tormented for half of the film). Weird writing for sure.