Secrets (a BBC Sherlock male! reader insert)

Part 1: The man

I came back from work in the late afternoon and entered the flat.

I saw someone, a man apparently, laying on the couch, his back facing me.

Frowning, I moved to the couch, but was stopped by a voice coming from the kitchen, which startled me. I turned around, ready to fight. Only to saw my housemate and my friend.

"Let him sleep John, he need it. Also, we're not hearing him talk which is nice." said Sherlock coming out of the kitchen, sounding annoyed.

"Who's that ? And what is he doing here ?" I asked

Sherlock opened his mouth to answer, but was cut off by the "sleepingman", much to my friend's dismay.

"He really is like how you described him, distrustful, well I guess that war does that to you...as well as living with Mister Sherlock Troubles-Holmes" His voice sounded young, and mocking.

"Well, excuse me, but you're the troublesome one right now, young man !" I never heard Sherlock talk like this.

"Sorry mom" the young man said like an annoying teenager "Wait, I thought that was Mycroft's role !"

"Well if "mommy" Mycroft didn't found you..." my friend trailed off, implying something.

"Yeah yeah...I know I would be dead by now blah blah blaaaaaaaah !"

"I'm being serious [Your name] ! We were worried !" My friend shouted.

I never saw Sherlock like that, so my curiosity peaked. Who was this young man ?

Having Sherlock Holmes the sociopath worried was an exploit ! Not even talking about the fact that Sherlock doesn't quite seems to have him under control...Was he his brother ?

The argument of the two was interrupted by Mrs Hudson entrance who began scolding them like a mother would.

"Would you two just stop ? [Your name] stop annoying Sherlock, everyone was dead worried about you ! And you Mister Holmes, let your cousin rest!"

"Yes Mrs Hudson" they said in unison, even though Sherlock kept glaring dagger at the young man's back.

"Cousin?" I said, surprised.

Said cousin chuckled while Sherlock looked at me like I was a complete idiot (I was used to that so I didn't care). Sherlock's cousin sat and turned around, smiling.

Not a normal smile, it was from pain as he was clutching his side with one arm. As soon as I saw his face, my doctor instinct kicked in: bruises, a small bandage on the forehead, splitted lips...

"Dear lord, what happened to you ?!" I asked worried

"I have soooo many moms !" he mocked.

"Shut up [Your name], I knew that was a bad idea" Sherlock said bitterly.

I looked at him and asked: "What was ?", but was ignored and Sherlock continued.

"You always do what you want anyway ! Going straight into danger !"

"You're the one to talk" the cousin snorted, I must admit he had a point "beside that, my plan worked, you found the gang and..."

"And you nearly died for god's sake !"

"And thanks to Momcroft, I'm back on my feet ! And you don't believe in god Sherly..."