Crowley had never done smitten before.

He was the king of hell, wandering around and causing trouble whenever he saw fit. He did the teasing and the banter, but anything beyond that?

Well, better luck with another demon.

It was always so much fun to temp people, seeing their faces go pale when their souls were lost or how they seemed to tremble when he walked by.

He enjoyed the power play of it all, smirking to himself as he gained a new deal and dragged another victim into a hell of their own creation.

The demon preferred this life, keeping himself above the rest and not letting them anywhere near his inner soft spots. Nope, those were sacred.

Everyone was either egotistical and a rival, or so boring he might as well be watching paint dry on a cement wall for christ sakes.

But then, he met him.

Oh, the man was so much more fun.

He'd noticed him when he was stalking the Winchester's, wanting to ensure they weren't about to ruin another plan or send him in for a sudden whirlwind of frustration.

When they'd gone to a professor, he had been a little surprised. Typically they stuck to witnesses or their books, rather than finding someone else to help them out.

And when he laid eyes on the man for the first time, he was certainly caught off guard.

He was easy on the eyes and very firm about his instructions, teaching the brothers much older rituals dating centuries back that he hadn't even thought of himself.

The other specialised in religion, especially older ones dating between the 15-18th centuries. A devoted man who enjoyed teaching others so they didn't make stupid mistakes.

It was certainly more than most hunters could remember.

When they had finished their hunt and bid him farewell, he had actually decided to stick around the professor. Popping in and pushing his buttons whenever he had the chance.

He tried to tempt him a few times with deals and promises, but the man always refused and kept his guard up without hesitation.

Much too devoted to his own faith and refusing to allow himself to even look into the contracts he brought up. He knew the game the demon was playing and wanted no part in it.

Not daring to give in to his words, yet also seemed to keep a somewhat calm facade around him.

Beauty and brains.

A rarity amongst the people he's dealt with.

Either way, he had become his favourite person to mess with. He'd swap his items so he lost track, writing things on the mirror to spook him and his favourite.

Popping in unannounced.

Crowley had been waiting for him to return to his apartment for almost an hour, waiting for him to return home so he could pull his usual stunt.

His lips tugged up into a smirk when he walked into the kitchen, running a hand through his dishevelled hair and brewing up some coffee. Likely for another all nighter.

Poor thing.

Once he was sure he was in his own little world, he finally cleared his throat and called out to him, restraining a chuckle of amusement when the man almost dropped the pot in surprise.

"Still so jumpy. I figured you'd grow used to me by now."