Dark Days (BillxDipper)

Dipper and Mabel are turning 21 and are back in Gravity Falls, but everything seems to change when Bill finds Dipper and turns to tormenting his mind any chance he gets, giving him horrific hallucinations, nightmares and teasing him, always touching him. Unable to decide if he wants wants to kill Dipper (For reasons explained way later) or if he wants to have Dipper, body and soul ;)
In this particular story I've changed up the story a little bit. Mabel, and Dipper have not actually met Bill... In this lifetime anyway. They still solved mysteries when they were younger as Mabel refers to their old "Mystery Twins" Nickname once. (Stan and Ford know Bill, just as they had in the show but i don't really touch on that just an FYI)

None of the artwork is mine, full credit to the artists!! Definitely Rated R, strong language, sexual scenes and smut later, torture, nightmare/horror scenes so I'm assuming it's probably (Definitely) got some triggers. Enjoy at you're own peril!!!!