Sherlock Prank War (John x Reader vs Sherlock)

    It had been a tough case.
    You, Sherlock, John, and the rest of Scotland Yard had agreed on that. That's why tonight you were all at the local pub - you needed a break.
    Lestrade and Anderson were watching the game on the television, Donovan wasn't insulting Sherlock (surprisingly), John was discussing baby names, and you and Molly were just talking about life. Everyone was having a good time.
    Except Sherlock. Yes, it had been a tough case, but he didn't want to come here in the first place. John had dragged him here - literally. He was sitting in the corner with his eyes closed and his hands in a prayer position under his chin. 'Probably in his mind palace again,' you thought.
    You sat next to John on the barstool. "I wish he would loosen up a little bit." You said as you gestured to Sherlock. John chuckled. "You want to see him loosen up? You should see him drunk." You looked at John, surprised. Then an idea popped into your head and you smirked.
    John finally realized what you were planning. "(y/n), I know that look. Don't spike his drink! You know he has a reputation to take care of."
    "Do you want to see him drunk though?"
    "Oh god yes."
    You smiled as you waved down the bartender. "Ten shots of the strongest stuff you have, please."
    "Good God. (y/n), that's a lot." John said.
    "I know. Oh, and take out your phone," you said as you poured the alcohol into Sherlock's drink. "This is going to be good."

    ~ One Hour Later ~

    You, John, and the rest of the gang watched in horror as Sherlock attempted to sing karaoke.    
    "(y/n) this was a mistake!" John said.
    "Yes I realize that now!" you replied.
    "What are you talking about? This is very good blackmail material." A voice to your right said and you turned towards it.
    "Mycroft?!" You said in disbelief. "What are you doing here?"
    "Sherlock kept texting me, complaining about how awful it was that John had dragged him here, and I knew something interesting would happen." He replied.
    "And you're filming it?" John asked.
    "Yes," Mycroft said, "Can I post it on your blog?"
    "Why of course."

~ The Next Morning ~

    Sherlock groaned as he slowly sat up. He tried opening his eyes but the light was blinding. He felt as if his head was full of cotton balls (not a good feeling). What had happened last night? He looked down at himself - he was wearing someone else's shoes, he had a rainbow feather boa wrapped around his neck and he was wearing that awful hat that he was known for.
    He staggered out into the kitchen and saw John and (y/n) sitting in the living room laughing and watching something on the laptop.
    "What is that? What happened last night?" He asked. You and John turned around, barely containing your laughter. "Oh hey Sherlock..." You said.
    "What happened last night?" He asked again.
    "You might want to check my blog..." John trailed off.
    Sherlock slowly made his way to the laptop and saw a video loaded on the homepage. It had nearly one million views. 'Well, it can't be that bad, right?' He thought.
    He thought too soon.
    Sherlock clicked on the video, only to find him drunk as hell and singing karaoke to Hakuna Matata from The Lion King. He watched in sheer terror as he made a complete idiot out of himself. He could hear John and you laughing behind him. He slowly turned around in the chair. You immediately stopped laughing when you saw the look on the face. Pure anger.
    "(y/n)..." Sherlock gritted out, "I am going to kill you."
    You gulped.
    "Slowly and painfully."
    You and John turned to look at each other and you both immediately ran out of the flat.
    "RUN!" You screamed.
    "YOU'RE GOING TO PAY FOR THIS!" Sherlock called after you as he chased you down the stairs.
    "IT WAS MYCROFT'S IDEA!"
    "DAMMIT"