After John had the baby he went back into the military. John had been gone ever since he came back for Hamish's 5th birthday. He had left the day after Hamish's 4th birthday. This time he missed Hamish's 6th birthday and didn't send any letter or anything. Sherlock was starting to get worried, John would at least send a letter. If he didn't that meant the worst, and Sherlock didn't want to think about that possibility.
It was even worse on Hamish. Before John left the first time they had a ritual every night. Sherlock would put Hamish in the bath and help him brush his little teeth, then John would dress him and tuck him in bed with a kiss on the forehead. Hamish got used to that but when it stopped he got distressed. Sherlock would do all those things except with a hug instead of kiss of the forehead. Hamish had several nightmares each week, which made him crawl into Sherlock and John's bed. He would worm his way under his dad's arm and sleep peacefully.
One night Sherlock felt extra sad, it was a day before John's birthday and it had been 93 days since his last disappearance.
Sherlock finished putting clothes on Hamish and carried him to his full size bed. Sherlock went to put Hamish down on the bed but Hamish wouldn't loosen his grip.
"When is daddy coming home?" Hamish asked in a whisper.
"I don't know baby, but he will be home soon I'm sure of it. Now sleep and dream good dreams about daddy okay?" Sherlock set the boy on the bed and tucked him in. This time he kissed Hamish's forehead and turned off the light and closed the door.
Sherlock slept on the couch this particular night because he had no strength to trudge to his room. John was outside the door to their flat. He waited until exactly 12:00 midnight to enter the flat.
"Go away, if you steal anything I will help detective inspector Lestrade find you." Sherlock grumbled. John waked in and knelt next to the couch and smirked.
"I don't think Lestrade would want to know what I stole from you almost 7 years ago." Sherlock looked back and a squeal came from his throat. John laughed as Sherlock pulled him to this chest in a bone crushing hug.
"Dad! Nightma-DADDY!" Hamish screamed wiggling his way in the middle of Sherlock and John.
"Hi baby!" John exclaimed hugging both of the most important people in his life. Happy tears were trickling down Sherlock's face and he accepted Hamish into the hug. They hugged for what seemed like 3 hours but in reality it was about 2 minutes. John pulled away and reached for his bag. "I got you a present baby." Hamish squealed with delight bouncing on Sherlock's knee. John pulled out a combat toy plane and carefully handed it to Hamish. "You can play with it but be very very careful, okay?"
"Thank you!!!" Hamish squealed and climbed into John's lap.
"Did you miss me?" John asked wrapping his arms around his son's body. Hamish nodded furiously and so did Sherlock. John laughed and kissed Hamish's hair.
"How about we get you to bed, hmm?" John asked. Hamish let out a sudden yawn. John chuckled and carried him to bed. "Oh I also have something else." John showed Hamish a teddy bear. "This is a teddy bear for my little bear cub. If you're ever sad or lonely, you have a little friend to keep you company." Hamish took the bear and cuddled it closely as John tucked him in. John kissed Hamish's forehead and turned the light off. He turned around and his lips were attacked by another pair of lips. John smiled and wrapped his arms around Sherlock's middle pulling him to their room. Sherlock pulled back and smiled.
"Good evening John." Sherlock whispered. John smiled and pressed his forehead against Sherlock's.
"I'm retired, did you know?" John asked striping down to his boxers.
Sherlock shrugged, "so?"
"Soo, that means that I'm on leave...forever." John says with a little smirk climbing under the covers. Sherlock striped down to his boxers as well and slipped under the covers with him.
"So that means...." Sherlock trailed off thinking and covered John's mouth so he could figure it out. "You never have to risk your life for people who aren't important to you?"
John chuckled and pulled Sherlock's hand away. "In a way you are correct."
Sherlock hummed and snuggled close to John. John tucked his head under Sherlock's chin and let Sherlock wrap his arms around him.
"I love you." Sherlock whispered.
"I love you more." John whispered back.
"No you don't." Sherlock whispered back.
"That's an expression like normal non-sociopathic people use, love." John explained. Sherlock sighed and turned off the lamp. John giggled softly and Sherlock show of defeat and slowly fell asleep.

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Johnlock Oneshots
FanfictionA bunch of oneshots about Johnlock some may be sad, some maybe happy, angsty, fluffy, smutty, and anything else really.