Daddy's Secret Princess( a supernatural/Castiel romance fanfiction)

(starts from the ' The monster at the end of the book' episode )

Sam and Dean find out they are being written about by a man who goes by the pen name Carver Edmund but his name is actually Carl. Carl has visions about the boys and turned it into a series not knowing they were real people. Carl can actually see the future when he sleeps, prophicies. Because Carl is a prophet of the lord. But Carl writes something unpredictable.

Sam and Dean have a sister.

Jenna Taylor never felt like she belonged even if she was a an all A star student, collage cheerleader for Sam Houston University. She's always felt different. Jenna lives in Houston, Texas with her mother Rachel....but her father only visited a few times in her life with little to no phone calls. His name?

John Winchester.

Jenna is different though, followed by things that were in her worst nightmares but always told herself they weren't real. But she's different because her real name. Her real birthright. Her last name is rightfully Winchester and that's one thing that will always follow her.

Jenna WINCHESTER must face this once her big brothers find her after all these years.

How will this all result for Sam and Dean? Find out :3