Humming 'Deck the Halls' off key, Ruby is on her way to bring a Christmas tree to her "Shammy", making her way to his motel through back streets and alleyways, so no other demons will see her carrying something so sappy. Passing the Impala in the parking lot, she stops suddenly, an idea making her smile. Taking an ornament and some tinsel off the tree, she winds it around the Impala's antennae, standing back to take in the effect and nodding…very festive!
She goes to the door and knocks, holding the Christmas tree in front of her, silently watched from afar by an angry entity that fairly shakes with hatred at the demon's very presence.
Sam opens the door and stands back, allowing the nastiness to enter the Winchester's current home. The vengeful spirit seethes at this, wanting to crush the meat suit the demon is wearing, barely able to contain a roar of helplessness at not being able to rush forward and yank Ruby out of the sanctity she has just defiled. Her boys, HERS, and that skanky demon is sucking up to them, pretending to be good but the spirit knows…Ruby means them harm.
Suddenly, the door opens and Ruby comes out, waving goodbye to Sam. Dean, in the background frowns suddenly and squints but the door is shutting, cutting off her view of her loves, her boys. Turning her attention back to the evil spawn that is Ruby, a growl starts low in her throat and, when Ruby steps off the curb, she SPRINGS, dragging Ruby down and under, crushing the demon with all her weight. Snarling now, she pulls back to do it again, to take out the evil Ruby once and for all when suddenly…
"Whoa, Baby…" Dean opens up her door and gets in, petting her dashboard nicely. Her snarl reduces to a purr under his gentle touch and she lovingly lets him put her in reverse, backing her up from the now smooshed Ruby. Sam stares in shock at the Impala which leaves bloody wheel tracks as Dean moves her backwards.
Dean joins Sam and they both look down at Ruby, who's pretty much done for. Sam reaches out a hand and pulls her demon smoke out of her with ease, sending her back to hell with a tightening of his fist.
Both boys look back at the car and then at each other.
Sam begins, "Dean, what the –?"
"Take a look" Dean motions to the tinsel and ornament on Baby's antennae, "I think Ruby made her mad when she put that lame crap on her…"
Sam tilts his head at the car, "I may be crazy but it looks like she's smiling…"
"I think you're right, Sammy…" Dean pets her hood before taking off the Christmas garland and bauble. Wrapping it around Ruby's corpse, the boys drag her around the corner to dispose of her. The entity, calmer now because order and balance have been restored, purrs contentedly. No demons better mess with her boys and nobody…nobody better mess with the prettiness of Baby!