House of Killers (CreepyPasta Fanfic)

Liberty and Sian are twin girls, tall and lanky, and both have white hair, like paper white. They live next to a forest and one day they go exploring after they heard there have been alot of mysterious murders in there and no traces of the killer or killers. When they go they are face to face with Slender Man, he takes them to the creepypasta mansion and explains how they didn't die when they looked at his face. They later find out that Slender Man is their dad and now they are forced to live with him.