Cats Do Not Dream of Demons (Bill Cipher x Were cat OC)

Felicia Eco Catus is intelligent, powerful, fierce, agile, and an incredible fighter and leader. She's also a species-changing werecat, the only winged one of her kind, from another dimension.
Bill Cipher is a crafty, dangerous dream demon, who will stop at nothing until he has full control over everything in existence. He is a wild charmer, and a sly devil.
When Felicia happens to draw his attention, he becomes intrigued by not only her ability to keep him out of her mind, but also (unintentionally) not being able to get her out of his. And he's determined to get into her head, one way or another.
Now Felicia is on the run from this crazy love triangle to protect the secrets of her special powers, while also trying to discover her own path in life.
She will need some help from friends from a certain Mystery Shack...

(Does contain some lust scenes)
(This is my first fanfic. I own nothing except Felicia, oc were-cats/wolves, & Yula the Polarleopard)