"Here" Sherlock said, handing you a stack of photographs. You were thankful you had eaten breakfast at Speedy's Café before seeing them, although blood and gore did not usually make you feel squeamish. They showed lacerations of the skin of the three victims- one in which was decorated by a shark's tooth stuck in the middle of a bloody scar. You tugged at your (F/C) tank top nervously; you were going to be shown the actual evidence today. The waves crashed over the golden-brown sands of the beach, cyan seawater barely missing your boat shoes.

"Where is John?" You asked out of curiosity.

"He said that he was busy. Blogging, I assume." His blue-green eyes scanned the beach around you. The beach had been cluttered with do not enter tape and the scenery would have been peaceful if not for the danger in the water. You were walking alone and were thinking to yourself that it would have made a good date, walking on the beach. You quickly caught your mind wandering, though, and decided to focus on the case, when out of nowhere, the brilliant detective grabbed your hand as you were walking. You did not know what to do, so neither of you said a word, although you had caught a glimpse of a blush on his right cheek.

You finally came up to the scene; the police where everywhere. A woman in her late teens to early twenties was dead on the beach. Her skin was ashen pale, and a fly landed in her open eye as she lay motionless. You shuddered.

"Her name was Grace Kay. She was nineteen." Lestrade said to Sherlock, nodding to you.

Sherlock leant over the dead woman's body, scanning for evidence.

"Any ideas?" Lestrade asked.

"Nine so far." He responded. His gaze turned to the wounds on her neck.

"What do you think, (Y/N)?" Sherlock asked.

"Huh? Oh. I think that it's kind of weird that it's on the neck. Most sharks go for the feet or legs, from my research." You leaned down to better see the bite. You noticed a tooth inside of the neck wound, and used your gloved hand to take it out.

"Ah. Definitely a Great White." You said, examining the sharp white tooth.

Sherlock smiled.

"Brilliant! Are you noticing a pattern?"

"Yes. On the male victim, the wound was on the chest, but on the women, it was the neck. Something is attracting the sharks to that area of the body…but why?" You trailed off.

"That is exactly what we need to find out… Come on, (Y/N)! We are going to the lab!" He took a few samples, and hailed a cab back to London.

CLICK! CLICK!

Your best friend smiled in front of the cameras, holding up a pink bottle of perfume. She wore a long goddess-like gown of the same color while laying down on a solid white sheet , fans blowing the gown and her long (H/C) hair ever so slightly.

"You are a brilliant model!" The photographer said, shaking her hand after stepping away from the camera.

"Thank you." She said humbly.

She changed into her favorite T-shirt and jeans and walked back to 222B, where you were sitting at the table eating Ramen noodles.

"How was it?" she asked merrily.

"Good. We found out some interesting things." You said nonchalantly.

"Did he…" She asked.

"Did he what?" You asked curiously.

"No..nothing. I have a date with John. See ya!" You stared as your best friend, now wearing regular clothing, ran out of the door with her jacket and phone.

I wonder what's going on… you thought. Your phone beeped.

(Y/N),

Thank you for helping earlier. You saved me a lot of time from my work. Will you be able to come over tonight?

-S H

'Sure! What for?' You texted. Your phone beeped after a minute.

I need you to sleep with me.

-SH

You raised your eyebrows.

'Sherlock…' You texted him.

I am doing an experiment on sleeping alone versus sleeping in a cohabited environment, and trying to find out which is better for the immune system. I need you to be there. John wouldn't help.

-SH

You giggled.

'Okay! What time?:)' You texted again.

Nine.

-SH

You looked at the clock. It was time. You threw on a scarf and a navy jacket over a nightgown and skipped to the apartment next door. You knocked on the door to 221B.

"Hi!" you said as Sherlock opened the door. He was dressed in pajamas and a robe. You shivered underneath the coat you had on; the nightgown you had on wasn't very warm or insulated.

He closed the door and offered to take your coat. You let him, and suddenly felt indecent in your sleepwear. Sherlock seemed not to notice or care, so it calmed you down.

"So…How's this experiment going to go?" You asked because you were curious.

"It's pretty simple. We sleep in the same bed, and I will scan our blood for the amount of white blood cells then versus now."

"Oh." You didn't like needles, but decided to be brave about it.

The two of you walked into Sherlock's room, which was clean, but had books strewn throughout. You saw his bed, a nightstand which held an alarm clock and a lamp, and a window with the curtains closed.

"Well…goodnight then." You crawled underneath his sheets. They smelled good; clean, like a hint of cologne and the smell of old books and earl grey tea. You rested your head gently on one of the pillows. He crawled into the other side and the mattress sunk a bit. His form warmed up the sheets quickly, or at least, you had imagined it. You fell into a gentle slumber along with Sherlock.

You woke up about two hours later for no apparent reason. You decided since you couldn't sleep that you would at least help with the experiment. You wrote down some notes about the way he slept, and you were taken aback when you realized just how peaceful he looked in the light of the lamp.

His cold sea green eyes were now gently closed by his lids. His dark curls were like that of a child's, messed up but still curly and youthful. His cheeks were a pale pink color, as if he had been dreaming of something that he was passionate about. A small, slow breath came out of his lips, in and out.

His lips. They were so full, and so soft. You were embarrassed to admit it, but in that moment, it tortured you to know that yours would never be able to touch them. You stepped closer to his sleeping form. No one else was here. It was just the two of you. But could you get away with it?

I can't steal Sherlock's first kiss! , you thought to yourself.

But no one will ever know, said your inner mischief-maker.

Smiling, you bent down to his face, hesitating just above his lips. You leant all the way down, an attraction pulling you closer and closer…

It was paradise. Your heartbeat raced, and you felt a thrill run through your veins. You lingered there for a few seconds more, all thoughts of right and wrong going away from you.

I was Sherlock's first kiss, you giggled in your mind. You were about to leave the room to get the bizarre feeling of accomplishment, mischievousness, and infatuation combined out of your system when you heard a bag fall to the floor behind you. You turned around to see who it was.

Oh no, oh no, oh

"H-HI John!" You said as nonchalantly as you could.

"What the he-" John stood with a sassy, I-caught-you-in- the-act sort of way.

"SHH! SHH It's an experiment!" You said, checking to make sure Sherlock was asleep. Luckily he was.

"I found you, scantily clad, in the bed of my flat mate, kissing him, and you're telling me that it was an experiment?" He asked.

You did not utter a word.

"He never said anything to me…" He walked closer to you, arms crossed, smiling sardonically.

"T-that can't be right. He asked you to be a test subject." You stammered.

"No he didn't." John said.

"That's not what he told me!" You said childishly.

Sherlock woke up, sitting in the bed, rubbing his eyes.

"What's this all about?" He asked irritably.

"NOTHING!" You said. Nothing, tra-la-la…

"(Y/N ) was telling me about your… experiment." John said.

Sherlock raised an eyebrow.

"Well, I told you, didn't I?" Sherlock said.

"No, you told (Y/N), though." John said.

"You must not have been there when I asked, John. Now, if you'll excuse me, I have an experiment to run." Sherlock walked into the bathroom and slammed the door.

Sherlock's POV

He walked up to the bathroom mirror, gazing at the corner of his lips.

. The color of (Y/N)'s.

He smirked to himself, washed his face, and walked out of the bathroom.

"The results were positive indeed…" He said to no one in particular.