Disclaimer: I don't own Sherlock or anything.

Author's note: Please review! Thank you!

John put on his clothes for work and also got Hamish ready to go too.

Sherlock was spending the day helping Mycroft with a government case, so John was looking after Hamish. Mrs Hudson, Lestrade and Harry were all busy, and John had to go into work or he would be fired.

Hamish had promised to be on his best behaviour at the Doctor's surgery. John had asked if Hamish could come, and luckily he was allowed.

Sarah still had a crush on John, and despite John's distain for her flirting, she was his boss, so he just didn't flirt back. He'd tried dropping hints into the conversation like 'My husband' and 'so happy', but Sarah was insistent. Sherlock knew about it, but there wasn't much they could do.

Hamish was ready to go and John packed a little lunch for him. He put Hamish in the buggy. His four year old was actually rather small for his age. But Harry had said that it had been the same with John.

They walked into the surgery and immediately the female doctors went all maternal and started to coo over Hamish.

John smiled well naturedly and got Hamish out of the buggy and set him on the ground while he folded the buggy up.

He went to the staff room and put Hamish's lunch box on the side while Hamish held onto his hand.

"Ah, I heard you were going to bring your little'n today." Phil, a Doctor, said.

"Yes. Nobody else is around to take him. I don't mind. It'll be fun, won't it Hamish?" John said down to his son.

"Doctor." Hamish said with a smile.

"That's right." John smiled and turned back to Phil "I best go get into my office and wait for my first patient. See you at lunch." John waved and picked up Hamish, then went to his office.

His first patient was a woman at the age of thirty. She had bad asthma and frequently came in for a check-up.

John smiled at her from where he stood and Hamish sat on his daddy's chair proudly.

"Oh, who's this cutie pie?" Anna asked.

"This is Hamish. My son." John smiled.

"I'm four." Hamish said and held out four fingers proudly.

"Are you? Is that lovely Doctor named Sarah your wife? She always chats about you when I see her." Anna asked.

"Oh, no. Most definitely not. I'm gay for a start. And my husband doesn't work here." John said.

"I didn't know, sorry." Anna blushed.

"Don't worry. I don't broadcast my private life around." John said gently and gave her a check-up.

Hamish insisted on listening through the stethoscope, but Anna didn't mind.

Hamish waved bye to Anna and they waited for their next patient.

The next patient was an eighteen year old girl who was trying to get pregnant. John had tried warning her of risks to her health, but she was insistent that she was ready. She was actually a very wealthy girl who was in a steady relationship.

As soon as she saw Hamish she said "Aww, he's so cute. Who is he?" she asked at John, who now sat on his chair with Hamish on his lap.

"This is Hamish, my son." John repeated for the second time that day.

"I didn't know you had a son. Is he… three?" she asked.

"I'm four." Hamish held out four fingers.

"Four! I thought four year olds were… bigger?" she asked curiously.

"Oh, normally they are. I'm quite short and it seems he has my height rather than his father's." John explained.

"Oh, now I remember why I recognised you the first time I came to this surgery! You're the guy in the same-sex couple who had a son. I saw in on the news." She said proudly.

"O…kay. Well, what do you need to discuss with me today?" John asked.

"Sorry, can I hold him? If you haven't already guessed, I love kids!" she said with a smile.

"He doesn't really like new people that much. What do you think, Hamish? Do you want to let Hannah have you for a few moments?" John asked.

Hamish looked from Hannah to John, put his thumb in his mouth and cuddled up to John.

"I'm sorry. But don't worry. He's like this with most people." John said supportively.

"Okay. Well, Doctor Watson, I just wanted to discuss…" after eight clients, who were all fine, it was lunch time.

"Shall we go and have some lunch?" John asked Hamish.

"Yes please, daddy." Hamish smiled. He had had a nice day with his daddy, finding everything interesting.

John took Hamish's hand and walked with him to the staff room. All the Doctors were going in too and John sat Hamish on a chair between Phil and (unluckily) Sarah.

"I'll be back in a moment with your lunch." John smiled.

"Daddy! What's to eat?" Hamish asked loudly.

"A ham sandwich, an apple, yoghurt and also a small packet of haribo for being so well behaved." John smiled and went to the counter to get Hamish's lunch ready and make himself a cup of tea.

He sat Hamish on his lap and encouraged him to eat. Hamish was very happy with the haribo.

"He's so much like you! He's adorable!" Sarah said enthusiastically as Hamish licked off the yoghurt from the corner of his mouth.

"I think he's a little more like Sherlock. He's incredibly intelligent." John smiled.

"Hmm, yeah, he's more like you though." Sarah said, only accepting that he was more John as if she hated the idea of Sherlock being a part of Hamish too.

"Well, with all due respect, I disagree. Yes, he's like me, he's also like Sherlock. But he is himself. Hamish isn't just me and Sherlock jumbled up, he's his own person." John said.

"So, tell us, John, how was your day? Did you cope well with Hamish with you?" Padma asked.

"He was very well behaved. Curious about everything I did and said, but questions are good. So I am very proud of him." John smiled.

"Daddy pwoud?" Hamish asked up at John.

"Yes, vey proud." John smiled and kissed Hamish's head.

His phone started ringing and he got it out of his pocket.

"I have it?" Hamish asked, trying to get hold of the phone.

"No, Hamish." John said firmly and picked up.

"Hello?" he asked.

"You're on your lunch now." Sherlock said on the other end of the line.

"Yep." John said and said to Hamish "It's dadda, Hamish."

Hamish started bouncing where he sat "I speak." He said.

"Hamish wants to speak with you, love." John said to Sherlock.

"Put him on." Sherlock instructed.

John held the phone against Hamish's ear and Hamish said "Hello dadda."

His grin widened at Sherlock's voice.

"Dadda, where are you?... Uncle My need your help?... Daddy and I doctors… Fun… Daddy is pwoud of me, he says… Okay… Love you too dadda… bye bye." Hamish held the phone up to John.

"Aww, wasn't that so cute?" John asked Sherlock.

"Very cute. Is he alright?" Sherlock asked.

"He's fine. He loves it here, actually. He questions absolutely everything, but that's good." John smiled.

"Yes. I'll probably be home at six o'clock." Sherlock said.

"Good. Hamish wants to watch 'finding nemo' with us." John said fondly.

"Okay. See you then. I love you." Sherlock said.

"I love you too. Bye!" John said back.

"Goodbye." Sherlock said and the call ended.

Sarah sat grumpily in the chair next to them.

"Daddy?" Hamish said as he ate his last haribo.

"Yes, pumpkin?" John answered.

"This lady loves you. But you don't love her, you love dadda. So she's grumpy." Hamish said bluntly.

Sarah ran out of the room and everyone fell quiet, most of them having heard what the boy had said.

"Hamish, you're not meant to… oh, you wouldn't understand. You have to be careful with people." John advised as the receptionist ran after Sarah.

"Why, daddy?" Hamish asked.

"Because people have feelings. You'll understand a bit more when you're older." John sighed.

"Daddy. I don't know." Hamish looked confused.

"I know. Can you come with me to say sorry to Sarah?" John asked.

"No." Hamish said.

"Why?" John asked.

"I didn't do anything wrong." Hamish frowned.

John sighed and said "Here, eat the rest of your haribo."

In the evening John told Sherlock all about how well behaved Hamish was, but how he embarrassed Sarah, but he didn't really do anything wrong, but still, John had felt bad.

They sat down on the sofa together. Hamish sat between his dads and they watched finding nemo.

John was enjoying the film just as much as Hamish, well, nearly as much. But Sherlock had deduced the whole plot of the film, so he got bored. He ended up reaching over and gently stroking the nape of John's neck. John leaned into his touch and turned to face Sherlock. They leant over above Hamish and shared a small kiss.

"Daddy, dadda, you have to watch the fishies." Hamish said.

John smiled and ruffled Hamish's blonde curls and returned to watching the film with a small smile.