Disclaimer: I do not own nor will I ever own Harry Potter and Supernatural

Author's Notes: This is unbeta'd so all mistakes and typos you find are all mine. This fanfic is crossposted from AO3 and written for Harry Potter Crossover Bingo 2023 and 2023 Harry Potter Crossover Versatile Prompt Fest.

I used the following prompts:

Angst

Harry Potter/Supernatural

I hope that everyone enjoys reading this fic.

When Crowley, a Crossroads demon arrived topside for his latest job he looked around to see who exactly had summoned him.

An attractive man stood in front of him, he was of average height and had a slender but athletic build. The man had short, messy black hair, a pair of stunning vivid green eyes behind a pair of glasses that were black and round. The man also had a scar upon his forehead in the shape of a lightning bolt, it looked old and unique.

The man, though he appeared young, had a tired and mature look about him though Crowley guessed that the man was probably in his early forties. He looked depressed but determined. He wore casual attire of sneakers, well-fitting black denim jeans and a long-sleeved button up blue t-shirt with the top two buttons undone.

When Crowley approached the man, he was taken aback when he could practically sense the power radiating from the human. This was no normal human, and he knew this. He knew that this human who had summoned him was a wizard but not only that but this one seemed particularly powerful.

Well, now this was a treat. Wasn't it? Natural born wizard souls were very valuable and deals with them were rare as natural born wizards and witches tended to go to their own magic for whatever they wanted, even when desperate. As a result, deals with them worked very differently and in Hell the witch or wizard would be treated very different than others who suffered in Hell.

Crowley was about to introduce himself to his client when the man spoke instead.

"Hi, a crossroads demon, correct?" asked the man.

Crowley nodded, "Yes, I am Crowley"

"Good, pleasure to meet you. I am Harry James Potter, Master of Death, and wizard. Before we begin and discuss things can I get you a drink?"

"Master of Death?" repeated Crowley.

Harry nodded, "Yes, you know. Immortal, can't die, heal fucking fast and stopped aging when I was in my late thirties or early forties, I think. Can't really remember anymore. Now do you want a drink or not?"

"Yes, please" replied the demon.

Harry nodded, and got a couple of glasses and poured into them both some alcohol from a bottle that read Firewhiskey upon the label.

Crowley accepted his drink and they both sat down upon Harry's couch before starting to drink their own drinks.

Crowley smiled as he sipped some of his drink before setting it down.

"Now tell me darling, what do you desire most in this life?" Crowley asked.

Harry sighed miserably before saying, "Death. I don't want to be immortal, I never did. I want to be normal and die when it's my time, just like every other human in this world."

Crowley was silent, this was different. People usually sold their souls to achieve immortality , not to get rid of it.

"And how old are you then?" asked Crowley, out of mere curiosity.

"Too old, over at least a hundred years old." Said Harry

"Well, you look good," said Crowley, a pleasant smirk on his face.

Harry gave the other man a slight glare as Crowley stared at him with an admiring gaze, "Thanks" he muttered.

There was a silence between the pair as Crowley thought about this deal and about what Harry wanted in exchange for his soul.

He would give the man ten years to live a normal life before he would send out his hellhounds to collect the payment or even just collect the payment himself.

"So, can you help me then? Please, I'll give you whatever payment you want. Just as long as you can do this"

Crowley smiled, "Ah, yes, I think we should be able to do this with the right kind of weapon. I turn you mortal and ten years later my hellhounds will track you down and drag you to hell"

"Okay, I understand. And payment?" Harry asked.

Crowley stared at Harry, "Payment is your soul, your magic and from the moment you arrive in Hell your soul will belong to me."

Harry nodded with acknowledgement, "Fine, I agree to the terms of your contract. I am eternally yours. Where do I sign?"

Crowley felt satisfied, he chuckled. "Oh, you don't need to sign anything Harry. We seal this contract of ours with a kiss. I'll call you once I've retrieved the blade and then it won't be long until we can make you a normal human."

Harry gave another nod, and Crowley saw a light blush appear upon the human's cheeks.

The demon gave a light and satisfied smirk, he then pulled Harry into a kiss. The kiss was short, had a bit of tongue and was quite enjoyable for both men despite them only kissing each other to seal a contract.

During the short kiss Crowley could practically taste the other man's magic and power, it was a powerful taste and quite delicious.

There was then silence for a few moments before Harry said quietly, "So, I'll give you my number then and when you're ready to come make me normal give me a call"

Crowley smiled and pocketed the piece of paper that Harry soon gave to him.

"Thanks, see you soon," said Crowley.

"Yeah, see you soon I guess" Harry said.

The demon then soon disappeared from the room, leaving the other man to dwell on the deal that he had agreed to.