Title: Reason 48: To reinforce good behavior (such as shaving & dental hygiene) bSeries:/b 50 Reasons To Have Sex

Spoilers: None Pairing: Sherlock/John Length: 655 words Rating: R

Warning: Blowjob, sex as a reward, a little D/s-ish

Summary: John rewards Sherlock's attempt at good behavior with a blowjob.

AN: This reason inspired me so there are two chapters for it. I'll try to have the next one up by tomorrow.

"Of course the boy was skimming money from the till. Just look at his ears," Sherlock rants. Lestrade had called Sherlock in to give his opinion on the body a construction worker had found partially buried in concrete. Now Lestrade's team (plus John) are forced to listen to Sherlock rant about how simple the solution to the case is. "Your team can see, but they can't observe."

Lestrade is amused by the critism. It's mild compared to Sherlock's usual scathing insults. In fact, Sherlock has been rather well behaved lately. Sherlock hasn't called Lestrade's team idiots or stolen Lestrade's ID in a fortnight. Lestrade is a bit suspicious of the sudden change but he isn't about to question the good fortune.

"Your team…" Sherlock continues. He pauses as John loudly clears his throat. Sherlock's entire demeanor changes. "However, your team was able to recognize that the victim was not killed here. Good work. We should investigate the victim's workplace. Although I'm sure you would have reached that conclusion on your own, Lestrade."

"Why don't we meet you there?" John offers. Lestrade agrees and the crime solving duo takes off toward the main road. As they move around a corner and out of sight of new Scotland Yard, John pushes Sherlock up against a wall and presses their lips together into a heated kiss. John finally pulls away when he needs to breathe.

"John," Sherlock gasps against his flatmate. The doctor can feel Sherlock's erection pressing against him. Sherlock is just like Pavlov's dog. John only has to kiss Sherlock to have the detective rock hard in anticipation of what will come next.

"Do you think you deserve a reward?" John teases. "You nearly forgot the rules. You were about to insult Lestrade's team and you know that's not good."

"I'm trying, John," Sherlock grunts as he unconsciously thrusts his erection against John's thigh. "Please."

"You have been trying to behave," John admits. "You could've even been considered polite this week. Lestrade is beginning to get suspicious. I guess I should reward your effort."

John cups the bulge in Sherlock's pants and gently trails his fingers over the zipper. Sherlock is practically shaking by the time John decides to stop teasing. He unzips Sherlock's trousers. Sherlock's cock springs out, hard and leaking. John drops to his knees and trails his tongue along Sherlock's shaft. John licks Sherlock's cock a few more times from root to tip before taking it in his mouth. He sucks hard on the head and Sherlock's knees nearly buckle. Sherlock's grip on the wall behind him is the only thing keeping him standing. John takes Sherlock's entire cock in his mouth while using a free hand to massage his flat mate's balls. A few hard sucks are all it takes for Sherlock to come down John's throat. John swallows, licks Sherlock clean, and tucks the detective back into his pants.

John pulls out a napkin from his pocket and cleans them both up the best he can. To the average person it wouldn't appear that they were just doing something unseemly around the corner from a crime scene. Of course someone as observant as Sherlock or Mycroft would be able to tell exactly the type of activity they'd been engaged in. John just hopes that Mycroft is too busy running the government to pay attention to his brother's sex life.

"There's more where that came from if you can keep from insulting anyone else until we get back to the flat," John promises as they resume their journey to the main road to hail a cab. Sherlock stares at him a moment; his brain still not functioning at 100% so soon after his orgasm. It amuses John that blowjobs make the great Sherlock Holmes as stupid as everyone else.

"Fine," Sherlock replies once his brain had rebooted. "That shouldn't be too difficult."

"Including Anderson," John adds sternly.

"But Anderson isn't a person."

AN: I hope you enjoyed this chapter. Please leave a review.