Seeing this demon... Inside of your boyfriend's body... It was horrifying to say the least. But, let's give some context, shall we?
The doors of the crypt rattled and shook, as hundreds upon hundreds of damned souls possessed the dead, trying to get their way inside. They wanted nothing more but to kill you, Dean, Sam and Castiel. It wasn't a fair fight at all, and you all couldn't just stand inside until the doors bursted - or until you died of thirst and hunger. You needed to make a plan, and fast, and while you were thinking of someway... Any way, to help in the situation, your train of thought came to an abrupt stop from a familiar voice.
"...Hello."
The voice of Jack.
You quickly turned around, ready to hug him - even kiss him from how much you've missed him. His death felt like an eternity had passed, but you were so shocked you couldn't move. But thank God you didn't, because once Sam asked if it was really Jack, Castiel confirmed it wasn't.
"Yeah... Sorry 'bout that. Look, I just got here and uh... I needed a body! So..."
"So you're a demon?" Sam asked.
"Yeah. I'd do the whole 'eyes' thing but uh.." He waved his hand in front of his face. "Yeah ..No eyes."
After he introduced himself.. You found out who he really was. He wasn't just some ordinary demon. He was Belphegor, the demon of sloth. You almost got as angry as Castiel was - As Castiel yelled at him, calling him an abomination. Though, you kept your anger boiling inside of you instead of letting it all out at the moment. You didn't want to this irrationally. This is no time for wrestling with a demon because he is in your friend's body. So you took a breath, and watched.
He clapped his hands together - in one hand he held graveyard dirt, and angel blood dripped in the other. That was a spell, according to him, to stop them from banging on the door and to get the way clear. And, from the way it instantly got dead silent, it most definitely worked. You would have thanked him, but you didn't, and neither did any of the others either.
You, and the others, made your way outside. Hundreds of dead bodies were laying on the ground, the past vessels of the damned souls which were just expelled.
You looked around curiously, before slightly jumping at Belphegor's sudden words.
"Hey, it worked..! High five."
Of course, nobody gave him one.
"The spirits have been destroyed." Castiel spoke to himself.
"No, I just uh... Blasted them out of those bodies, you know.."
And that's how everything started. Now, you two were walking around the small town, infested by damned souls. It's a long story. But, Dean decided to go on his own, Castiel didn't wanna hang out with Belph, so you were stuck with him.
"So like.. I haven't seen pretty humans in centuries, y'know? They're all so ugly, way back then when we worshipped a rock that looked like a giant penis.. ehh.. it was weird." He began speaking. "But look at you. You're hot as hell." He flirted. He put his hands in his pockets as he yawned.
What do you do?