Chapter Text
It was Halloween night, and currently John and Sherlock were on a case, hunting down a proclaimed witch who planned on calling on a demon. Currently the witch had killed two people, one per day before the night of the 31st, with them slowly progressing. The first kill had been drained of their blood, hung upside down on a cross with their throat slit. The second was missing their eyes and a few other internal organs, except they had burned out the eye sockets and burned their chest cavity, it was still on fire when they had arrived. They couldn’t find any prints or DNA to go off of other than it was a woman who was targeting teens, mostly ones who went to parties as it gave the killer a larger variety and could get them to follow her and take them from a large crowd without raising suspicion. Sherlock was able to point out the killer went to large parties for their hunting ground and that they had a certain target, youthful looking teens who were athletic, healthy and so far all had brown hair.
“John hurry up, they are likely out now looking for the next victim.” Sherlock called out to his blogger who was currently upstairs, applying the finishing touches to his costume before they went out.
“Shut up Sherlock I know.” He called back as he applied gel to his hair, coming it back before slipping his dog tags on. John finally came downstairs, dressed in some of his old army clothes from when he used to train, a combo of his gear and some stuff from the store to go with his army themed costume. Sherlock was in a pirate costume, instead his was all made from his tailor instead of going to the store expect for the hat, feathers and scarves that adorned his costume.
Sherlock looked John up and down before nodding, explain one last time what the killer would look like as they headed out the door. “Sherlock I know, we’ve been over this at least five times.” John rolled his eyes, a cab pulling up to the curb, allowing both to get in before heading to the party.
“This would have been the third time.” Sherlock muttered, looking to the window as they drove.
-x-X-x-
When they finally pulled up to the curb near the party, Sherlock bounded out of the cab first, leaving John to pay as he looked over the clubs exterior. The club was the one that was the most popular and was throwing the massive Halloween party, it was the largest in the city and would sure be the perfect ground for the killer. The two walked past the line and up to the bouncer, who recognized Sherlock and allowed the two to pass, the loud music could already be heard from outside.
“Remember what we’re looking for.” Sherlock said before split up from John after getting a confirmation nod, Johns back straightening as he slipped into his Captain mode. He stalked the room, doing a quick circle to try and see if he could find the woman, he passed Sherlock, giving a quick shake of his head to show he hasn’t seen the woman yet. He had his gun on his belt, blending in with the other fake army gear from the store along with the cuffs Sherlock gave him, which was stolen off of Greg.
After doing another circle, he stopped at the bar, he was about to order a drink when the bartender slid a glass his way. “Gift from the little devil at the end.” The bartender winked as he nodded to the left.
John raised an eye, glancing to the left as he raised the glass to his lips. It was a man, slim but strong build with a half mask, horns in their slicked back hair with bright red lipstick. The devil winked at him as John finished the drink, the other clicked their nails along the bar counter before sauntering off.
Something was drawing him to the other, he quickly set the glass down before going to follow the other, who was a few feet ahead but was still able to follow through the crowd of dancers. John slithered through before reaching the end of a quieter hallway, with red lights illuminating the hall that led to more doors with one ajar at the end.
He wanted to go, something about the little devil was intriguing and he wanted to know more. Despite that Sherlock would know and might scold him later, but at that very moment he didn’t give a damn. Before he knew it he was walking to the door at the end and slipping in before closing the door behind him, separating the loud music from the party and the sensual music that was filling the room.
Once inside his breath caught in his throat at the sight before him. The other man was laying on their back, one of their legs laid along the mini stage, the other bent as one of their hands traced up their slim stomach that was covered by the red spandex sleeveless shirt with matching spandex shorts that went to their mid-thighs. Under the shorts were tan nylons, the devils tail built into the shorts with red pumps on their feet.
The stage was along the back part of the room, stage floor light up with a soft red with a pole in the center of the stage. John moved slowly to the plush armchair in front of the stage.
As soon as he sat down, the other male slowly opened their eyes as they turned to John, licking their cherry red lips as they sat up and spun on their arse to face him. They stood slowly as they walked up to him, circling him as their red nails trailed along his arms, up the back of the chair and back down his arm. Hips and tail swaying as they sauntered back up to the stage before twirling on the pole and ground their groin into the pole.
Johns breath hitched again as he licked his lips and watched as the other swung around the pole once more before using their arms to climb up the pole, wrapping one leg around the pole, leaning back away from the pole as they looked at John upside down. A hand slid up their chest, pinching a stiff nipple under the spandex and parted their lips as a whine could be heard along with the music in the room.
The little devil sat up again before turning to slowly spin down the pole until they were kneeling on the stage, bringing their body closer to the pole as they ground into the pole, biting their lip as they looked to John with half lidded eyes.
Slowly John’s body began to burn with desire as the devil continued to tempt him, making his pants feel even tighter as his cock started to stir. The male licked their lips as they seen the bulge in his pants before abandoning the pole and crawled off the stage, their tail swaying before they were kneeling between Johns spread legs on the chair. A low groan slipped through Johns lips as the others hands slid up his thighs, edging so close to his bulge before getting up only to straddle him in the chair.
“Bloody hell.” John gasped as the little devil ground their clothed erections against each other, making the other man smirk as they leaned forward, licking a stripe up their neck before kissing below their ear. The other males hands ran up his toned chest, one hand staying on his shoulder while the other trailed back down to lift the hem of his shirt and slid their hand back up under his shirt, feeling the defined muscles.
A moan came from the devil as they finally tugged the shirt over Johns head and moved to kiss his lips, rutting against him in the chair. John finally was out of his trance as their lips met, hunger taking over as he devoured the others mouth, his hands going to the man’s hips as he groped their firm rear and ground them down to meet his straining cock in time with the beats of the music.
The little devil whimpered as John took control and wrapped an arm around his neck while the other rested on one of his pectorals, nipping John’s lower lip.
John could feel his cock begging to be released from his trousers, and to also ravish the delectable man that was moaning wantonly in his lap who looked like they were ready to burst. He reached up to the back of the others head to bring them back for another searing kiss and groaned when he felt the others nails rake down his chest making his hips buck up into the other.
“Ahhn!” The other man moaned as John moved to suck and nip the others neck before biting down along the side, the other almost cumming in their shorts. John felt hands pushing against his chest before he let go, half lidded eyes met his, their mouth parted as they panted and ground into his clothed cock. John was about to go for another kiss when the other moved to his neck, placing kisses along his neck before sucking along his jugular vein and left a dark mark where his shirt wouldn’t be able to cover it.
“Can I see you?” John asked as he stroked the others cheek, wanting to remove the mask. However the devil had other plans, they shook their finger from side to side before pulling a card from their back pocket and handed it to John before giving him one last kiss and got off of his lap. The devil winked before raising their hands above their head and clapped twice, the lights going off before turning back on in a few seconds.
“W-wha-?” He looked around quickly, trying to see where they might have gone, leaving him alone with a throbbing hard on. It almost seemed eerie that the devil escaped just in time as it was only two heartbeats before John could hear his name being called from the hall way.
“John! John!” Sherlock’s voice was growing louder before he slammed the door open, making the army doctor jump a little and bolt to his feet. “What is it Sherlock?” Scowling slightly as he was still hard but was slowly going away.
Sherlock paused, taking in John’s state, tilting his head as he read all he could from John. “Sherlock, what is it? Must have been important and relating to the case.” John rolled his eyes as he moved to pick up his shirt, his dog tags dangling from his neck as he quickly put his shirt back on.
“Right. I’ve found the killer, she’s chatting with a woman at the bar but we need to hurry before she leaves.” Sherlock rushed out before grabbing John’s wrist and dragged him out of the room. They were both rushing down the hall, John’s bulge slowly withering as he ran and focused on the case.
They reached the crowd again, before Sherlock pointed out the two at the bar. “Got it, should we follow them out of the bar?” John asked as they slowly moved to blend in with the crowd, staying to the back of the woman who was talking to a brunette in a mermaid get up.
“Yes, don’t want to cause a lot of panic in here.” Sherlock nodded as he perked up as the two stood up from the bar, the mermaid smiling at the other as she was led to the front door. Both Sherlock and John moved wordlessly to the door, keeping some distance between them and the two woman.
Once outside they turned to look around the streets as they seen the women get into a cab. “Text Greg.” Sherlock said as they took off to a run as they followed the cab. They took alleys and sidewalks before slowing down to an older apartment building. When they stopped they seen the cab come up to the curb. John sent off another text to Greg about their location as they ran up to keep track of the two as they were going up stairs.
“Where to?” John asked as they slipped through the doors before they closed, Sherlock closing his eyes as he listened before taking off to the stairs and started going up. John following behind as they reached the top, becoming quiet as they walked silently down the hall past the numerous doors. Sherlock stopped in front of one, 31B, John once again texting Greg before silencing his phone while Sherlock tested the door.
The door opened silently, allowing both to enter before closing the door and entering the dark flat.
It was quiet before they heard a loud –thump- come from the far side, John stiffened before reaching for his gun and turned the safety off. He raised it, getting ready for the scene ahead as they turned the corner real quick. “Hands up now!” John shouted, using his Captain voice as Sherlock turned the lights on. John blinked real quick to get used to them as he seen the mermaid girl on the floor, her breathing shallow while the other was standing above her body with a dagger in her hands.
The woman snarled as she moved to charge at them, John narrowed his eyes as he shifted his gun a little to shoot right next to her head, just a few millimeters to the left of her.
“I mean it.” He warned, the woman growled as she dropped the dagger, her hands in the hair above her head.
“Pathetic humans, nothing but filth. A parasite.” The woman muttered under her breathe as Sherlock took the cuffs from Johns belt and went up to cuff the woman’s hands behind her back and sat her down. John lowered his gun, turning the safety back on as he went to the woman on the floor and looked her over.
“She’s fine just unconscious. Text Greg and tell him we need an ambulance as well.” John said as looked to Sherlock who was texting furiously on his phone.
