We've had the Scoobynatural crossover, we want the Lucifer crossover, and Jensen's even mentioned a Vampire Diaries crossover where they just kill everybody, but consider this.

Supernatural and Whiskey Cavalier crossover.

Don't know it? Whiskey Cavalier is a newer show with Lauren Cohen (AKA BELLA) as the female lead. She plays a CIA agent named Frankie, who teams up with an emotional FBI guy named Will.

But Bella and Frankie have like the SAME character. Snarky, manipulative, sassy and fabulous as hell. 

IMAGINE IT.

Dean: We thought you were dead!

Bella: Yeah, well, I got around that. No thanks to you two.

Will: Wait, Frankie, you know these guys?

Bella: Yeah, we used to work together.

Sam: Work together. Yeah, sure, until YOU SHOT ME.

Dean: YOU STOLE MY CAR.

Bella: You got it back!

Dean: YOU STOLE MY FREAKING CAR! 

Standish: What car? THAT car? No wonder she stole it. I'd steal it. That's a nice-

Dean: *has a gun at Standish's head* 

Dean: Try it and it'll be the last thing you ever do.

Standish: oKAY. Understood! Don't touch the car!

Bella: So, I see you're still a couple of drama queens.

Dean: And you're still a bitch. Good to know.

Bella: Maybe I wouldn't be a bitch if you hadn't LEFT ME FOR DEAD.

Sam: See this? This attitude? THIS IS WHY WE LEFT YOU FOR DEAD.

Will: I'm confused.

Dean: Don't be. Just get away from her while you still can.

Susan: Wait a minute....*glances between Bella and Dean*

Susan: Did you two sleep together?

Dean: WHAT?

Will: WHAT?

Bella: I offered, but then I remembered that he's a raging closeted homosexual.

Dean: I AM NOT-

Sam: Oh my freaking god, EVEN BELLA KNOWS, ACCEPT IT.

Susan: If that's true, then we should talk-

Dean: WE'RE NOT GOING TO TALK.

Susan: I'm sensing a lot of aggression-

Bella: Oh, there's a lot more where that came from.

Standish: Anybody got popcorn? This is getting juicy.

All: SHUT UP STANDISH.