John's home was small, but fairly nice. As soon as you entered John's home, you were greeted by his kitchen, after that his living room, then a bathroom. Up the stairs, was John's room and the guest room, with a connected small bath room. Across the hall was Harry's room and John's mother's room, which had a connected bathroom also.
John sighed, "wanna go to the living room to work?"
Sherlock shrugged. They walked into the living room and saw Harry making out with a random boy on the sofa. It didn't surprise Sherlock, but what did was John's responsible, mature response.
"Harry! Mum said no boys! You know you're not allowed to! And why on the couch? If you were going to, why didn't you go up to your room?" John said, sounding like an adult.
Harry had broken away from the boy at this point. Sherlock calmly deduced "John, your mother and her are having a fight. Most likely over the missing alcohol. She's quite angry at your mum and most likely wanted her to walk in on them in a compromising position to infuriate her and get her mind of the alcohol. It wouldn't work, this plan of your sister's, seeing as your mother already suspects that her daughter would try something of this nature to get her mind of the alcohol, and has locked her alcohol away, and filled her empty vodka bottles with water to trick your sister."
Harry glared at John, "You little f*ck! You told him about the liquor I stole from mum! I'm going to kill you!"
John had wide eyes, "No! I didn't, I promise-".
"Of course he hasn't told me. Obviously, you need to trust your brother more. His sense of loyalty is almost amazing. I deduced all of my information on presented evidence. And you really should stop your drinking habit now. Having a drinking habit at a young age could lead to alcoholism, although I believe you've already established a good footing on that road," Sherlock intervened.
Harry turned to John and snapped, "Who the hell is this little sh*t!"
"Sherlock Holmes, pleasure to meet you," Sherlock said sarcastically.
Harry was about to kill the curly haired freak.
John saw and intervened, "Sherlock, let's go up to my room."
John led the way to the stairs and, as leaving, Sherlock yelled, "And by the way, the boy you were kissing is gay and has mono!"
When they got in John's room, Sherlock was all prepared for John to tell him to leave. Instead John laughed "Did you see her face? I thought she was going to explode!" Sherlock joined in on laughing with him. They laughed until they were out of breath. Then Sherlock said "So you aren't angry or going to kick me out?"
"Why would I do that? You stuck up for me and made my sister ticked off. It was great! To top it all off, you called me 'amazing'!" John smiled.
"I called your loyalty 'almost amazing'. I suppose, I could call you amazing, though. So our project?" Sherlock smiled too.
They worked on the project and got it halfway done. John's mum had gotten home and called them down for dinner.
John's mum smiled, "Oh, Johnny, I didn't know you had a friend over. What's your name dearie?"
Sherlock answered, "Sherlock," as John blushed at being called 'Johnny'.
"Awww that such an adorable name. Especially for such an adorable child," John's mum cooed.
Sherlock tried not to cringe at being called adorable. John was holding back silent laughter. John's mum smiled at them, "Sherlock, do you like spaghetti?"
Sherlock nodded and smiled graciously. They sat at the table and Harry and her make-out-partner sat with them. Their mum tried to be gracious to Harry's 'friend', "Hello, I'm Ann Watson, and you are?"
"Greg Lestrade, thanks for letting me stay for dinner, Mrs. Watson," Harry's make out friend said.
Harry smiled, "Greg, this is my brother John, and I believe you see this freak is apparently Sherlock Holmes."
John's mum sent a glare at her daughter and changed the subject, "Juice anyone?"
Sherlock smirked, "No, thank you, Mrs. Watson, but I believe Harry and Greg might like some. It's may help their sore throats."
John busted up laughing, Greg looked a little amused, Mrs. Watson was confused, and Harry looked like she was about to commit murder.
Harry glared at Sherlock, "I hope John never brings you back here, ever!"
"Harriett Elizabeth Watson! Apologize this instant. Sherlock is a guest, now be nice!" John's mum yelled at her daughter.
Harry sighed, "Sorry, Sherlock"
Sherlock smiled devilishly, "Apology accepted, Harriett".
John had calmed down laughing and whispered to Sherlock, "That was great!"
Sherlock felt incredibly proud that John was happy with him. After dinner, Greg left and Sherlock called his driver to pick him up. John's mum said before Sherlock left, "It was lovely to have you here Sherlock. Please do come again sometime."
Then she left John and Sherlock to say their goodbyes. John smiled, "That was really fun, and you're hilarious. I didn't know my sister could get that angry, it was genius! You're brilliant! We should hang out more often!"
Sherlock was shocked, "Okay. I agree it was 'fun'. Sometime, we should get together at my house- I mean… if you would want to?"
John smiled brighter, "Sure! Whenever you'd like!"
Sherlock nodded, "Well, my driver is here, I must be going."
"Bye Sherlock!" John said.
Sherlock said, as he was leaving, "Goodbye to you too, John Watson." With that, Sherlock Holmes left.