Fly for Me

You've heard of the Winchester's, right?
Big known hunters.
Well John, after Mary had Dean, left town for a case and hooked up with a normal looking lady named Elenoria.
He eventually left, and came back with Mary and Dean.

Well Elenoria wasn't so lucky, see a demon named Hasira knew thwt John had been there, so hoping eventually he'd come for her, possessed the pore girl. And then Gadreel came.
This, to Gadreel, seemed like millennia ago, thanks to Niomi. I cant really explain it, but Gadreel loved Hasira and things happened....sexual things.
Gadreel left, trying to help Hasira, and those 20+ years he was gone, Hasir had left and Elenoria was giving birth to Christ.
Anti Christs are part human, part demon.
Christs, on the other hand, are part demon, part angel, and God knows how much power they have. Now the best part of this is, she grew up with The Winchester's.

Let's wait this one out.