Both of the Slendermen held her limbs tightly as large black probes sprouted unnaturally from their nether regions, both were flexible, boneless sacks of muscle that could be subsituted as  penis. Jessica's worst nightmare had begun again. The one at her legs shoved the tentacle into her cunt with violent ferocity whilst the one holding her wrists began pushing the squirming, seemingly living, tentacle against her lips.