(*has a plot already*)
She sat down and tapped her fingers.

"She's not human"castiel said appearing behind dean, tori, smile dog and Sam"dammit cas warning!"dean said"sorry"cas said not really sorry.

"Cas what do you mean she's not human?"Sam asked"I mean I can sense it, she's not human and nor is her unborn child"cas said. "She's pregnant!?"the four asked"yes and with a nephilim"castiel said. The four stood there"well lets just angel and demon proof this place"dean said. "I'll go talk to her" Sam said walking over to the girl

The girl faced at Sam tilting her head"the boy who has demon blood in him it is a pleasure to meet you"she said. "You too uhh"Sam trailed off"Andy"she said"nice to meet you Andy"Sam said.

She nods her head and looks at the table"so what brings you here?"Sam asked"I came here to find the one name castiel"Andy said"oh cas? Well I can introduce you to him"Sam said"that would be great"Andy said.

Sam nods his head as he grabbed her hand and leads to where cas, and dean are at.
What's your reaction to the girl?

Or you can make it up

The girl: