Once Bitten (a Billdip story, vampire AU)
Dipper Pines, a human teen crossed paths with Bill Cipher, the head vampire of Gravity Falls, who bites Dipper and turns him into a bloodsucking creature, much to Dipper and Mabel's dismay.
Now Mabel, Dipper's twin sister, must work with Gideon and Wendy in order to get Dipper back to normal.
Unfortunately, an ever-growing army of vampires stands in their way, Ford having been taken by the vampires long ago.
Not only this, but will Dipper ever be normal? or will lust grow between the head vampire and the teen?
*Caution: may contain smut,violence,a bit of gore, BXB as well as Mabideon*