Sherlock sat on one end of the couch and Hamish lay on the other. He had been sitting like this since he changed Hamish's diaper at four in the morning. It was not seven.
"Sherlock, what are you doing?" John asked when he walked in on the two.
"Observing John. It's obvious."
"Ok, why?" John sighed and rubbed his eyes. It was way to early to be talking to this insane man.
"It's an experiment John. I'm trying to figure out how long he will sleep at one time after being changed and fed." Sherlock finally glanced over at John. "Do you need something?"
"Yeah, you can't use your child for an experiment. No matter how important you think it is." John said and picked Hamish up to put him in the cot John had assembled yesterday.
"John, it's sound science so we will know how much sleep we get." Sherlock stood up to defend himself. "Besides I got bored and apparently shooting the wall is not a proper way to fix that problem." Sherlock called after John. He sighed and fell back onto the couch.
"Sherlock I have to go to work. Please don't set the kitchen on fire... again. Don't use Hamish for an experiment either." John called up the stairs then Sherlock heard the door shut. He stood up and wandered into the kitchen to check on the different eyes he had in jars. He heard Hamish scream from the next room. He sighed. It was going to be a long 18 years.
Two months later Sherlock wanted to go back to work. He decided he would tell John when he came back from giving Hamish a bath. He was sitting upside down in John's chair. John walked back into the living room he leaned against the doorway staring at John.
"What are you doing?" John finally asked.
"Thinking. I want to go back to work soon. I'm to bored around here and soon the smilie face will get a twin." Sherlock knew that that was what John was dreading. The last thing John wanted was another group of bullet holes on the wall.
"Fine, but please just find a sitter for Hamish before then." John sighed and wandered into the kitchen to make tea.
"Mrs. Hudson." Sherlock called. After five minuets Sherlock decided she hadn't heard him and went downstairs. He wrapped his robe tighter around him and knocked on the door. As soon as the door opened Sherlock started talking. "Mrs. Hudson, I want to go back to work but I need a sitter for Hamish, would you be so kind and do it for me?"
"Yes, dear, of course." Mrs. Hudson smiled up at him.
"Thanks Mrs. Hudson." Sherlock kissed her on the cheek and bounded back up the stairs. "Problem solved. When's you next day off?" Sherlock looked at John who was sitting in his chair.
"Be ready to go by 8:30." Sherlock began to cut open some eyes and began rambling, so much so he didn't notice John had left for work. Sherlock noticed John was gone when Hamish's screams pierced the air for a long period of time. Sherlock walked over to Hamish's cot that John had put together after Sherlock threw a piece down the stairs. Mrs. Hudson wasn't very happy with Sherlock after they found a small hole in the wall.
"What's wrong Hamish?" He almost expected the child to respond but picked him up after another moment. Sherlock soon found out that his son needed a diaper change. John came home later that night to a shouting Sherlock, crying Hamish and the flat full of baby powder. "I'm rubbish at this John. I don't think I can do this anymore."
"You are doing fine Sherlock, now go get cleaned up. I will put Hamish to bed. I'm sure Lestrade will have a case for you tomorrow." John kissed Sherlock quickly and took Hamish from him. "What are we going to do with that man?" John asked Hamish after they where ear-shot.