A.N: Written for a prompt on the BBC Sherlock Kink Meme on Livejournal -

PROMPT: Sherlock makes mixtapes. For everyone.

Warnings: Mild Language
Characters: Sherlock, John
Disclaimer: I own nothing!
Anything else? : This was so. Much. Fun. XD

John. Following today's events, now may be an appropriate time to consider drastically improving the security on your laptop. – MH

…Today's events? My head instinctively snapped round to my computer, sitting on the desk looking about as innocent as a laptop can. What on earth did he mean?

"Sherlock?" My flatmate was in the same position as he had been for pretty much the entire week – curled up on the sofa in a ball of sulk. And ignoring me. Growing more suspicious by the second, I informed him that his brother had just texted me.

He said nothing, but glanced back over his shoulder and shot me the most poisonous and terrifying smile I've ever seen.

"Has he?"

My phone buzzed again. Harry, this time…

Johnny! Thanks for the CD! You know I love a bit of YMCA! LOL you big cheeseball. You SURE you're not tryna tell me something? Loooololol. Love you baby bro! xoxoxox

CD? I hadn't sent her a…

Oh. So. SOMEONE ELSE must have done.

Another buzz… My blood ran cold as Lestrade's name flashed up on my screen.

Hi John, the CD just came through the post! Thanks! Good to know I'm not the only bloke in the world with a secret love of Dancing Queen, haha! You'll have to come to the 80s night at the pub next time, I'll give you a shout.

I felt mildly ill.

"SHERLOCK."

"John."

"You…hacked into my computer…again…"

"Yeeees…" he drawled, still hunched up like some bizarre, hibernating rodent.

"And you…you…" I felt my head beginning to ache with that special sort of pain that only an altercation with Sherlock could bring about. To my horror, Sally Donovan was next to buzz me…

HAAA! "I Will Survive" is SO your theme song! I'll bet you're dancing to it every day to cope with living with your FREAKY friend! Now he's got you doing Gloria Gaynor impressions, I told you to steer clear of him, there's no going back now!

"Hypocrite."

It took every last ounce of my resolve not to throw my phone at his bony back.

"What?"

"Hypocrite. You. You took mine, after all."

I gawped at him. And then numbly repeated what he had dubbed my "favourite" word.

"WHAT?" I tried to know what the hell he was on about. Really, I did.

"You took my music. It stands to reason I can take yours."

I strode across the room, darted behind the sofa and, with all my strength, rocked it forward. As Sherlock went sprawling to the floor in a flurry of limbs and cushions, I hopped over the back of the chair and perched myself on one of the arms.

"I confiscated… CONFISCATED… Your violin, Sherlock. You know damn well why, but I'll say it anyway. You were screeching away – NOT EVEN PLAYING the thing properly…at HALF PAST FOUR IN THE MORNING. And now you've…what…picked all the most toe-curlingly embarrassing songs out of my iTunes and sent them to people? WHY?"

It was a stupid question. I knew the answer before he'd even opened his mouth.

"I was bored."

My phone buzzed, almost timidly, in my hand.

Salt-n-Pepa? Push it? REALLY, Watson? I knew you were desperate when you hooked up with Sherlock but it's no wonder if THIS is how you flirt with people. I'm not interested, BTW. – Anderson.