the best shipping dynamic, bar none:

slutty ultra feminine bimbo that dies first in a cheap slasher flick x serial killer that only pretended to kill her in the first act so they could team up to kill more people together because they're both sick fucks

bonus points if their last intended victim is the final girl who they attempt to seduce or coerce into joining their thrill-kill team and make it a throuple because she's such a resourceful survivor and they're both turned on at the thought of having a franchise player like that in the squad