A/N: 5 year olds can be real stupid sometimes. Just saying.

Mycroft left and Matthew got a scolding about running off, but Molly had to do some work after that, so she left him to his own devices. Matthew grabbed a stool and sat next to Sherlock. "Mr. Sherlock, who was that?"

"My brother, Mycroft. Why?"

"He seems a lot like Mum."

Sherlock snorted. "No, your mum is nicer. Mycroft's the most irritating man on the planet, the fatty."

Matthew laughed. "How's that different from Mum?"

Sherlock looked over at him quizzically. "Why do you even care?"

"…They both seem so lonely. Maybe they could…could…" Matthew didn't know how to describe what he wanted to say. "Maybe they could be lonely together?"

Sherlock's eyes lit up in understanding. "You think they should go out together?"

Matthew nodded. Sherlock smiled. "I'm in. I'd love to see Mycroft make a fool of himself. How do you think we should get them together?"

"I'm not sure. But first, we've gotta make them friends, or at least friendly, right?"

Sherlock nodded thoughtfully. "Maybe we could stage a chance meeting?"

Matthew looked at him blankly for a minute before saying slowly, "There's this little café that me and Mum go to a lot and like. Would that count?"

"Yeah, I think. I could set up a lunch with him there on the same day you go."

"We eat lunch there every other Saturday. Would 3 days be enough time for you?"

Sherlock nodded and stuck out his hand. "You have yourself a partner."

Matthew shook the hand and smiled.

Matthew and Molly were standing in line at the café on Saturday when they heard a familiar voice on the phone behind them. Matthew turned around and smiled. "Hey, you're the man who walked me back to the morgue Wednesday!"

Mycroft looked down at him, irritated, before snapping on last thing into his phone and hanging up. "Yes…Matthew, isn't it?"

Molly looked at who Matthew was talking to and was quick to apologize. "Oh, I'm sorry, Mr. Holmes. Matthew, don't bother the man!"

Mycroft smiled thinly. "No, it's fine, Ms. Hooper. My brother arranged a meeting here today, and some problems popped up at the office after I left. I'm just stretched a bit thin. You haven't seen him enter, by any chance?"

Molly shook her head apologetically. "No, sorry."

"You could sit with us until he gets here!" Matthew offered.

"Matthew!"

Mycroft held up a hand. "No, it's fine. I'd actually appreciate the company."

The three of them ordered their food and sat at a booth in the corner. Matthew was the one to break the ice. "So what do you do at your job?"

Mycroft just shrugged indifferently. "It's not very interesting. I just hold a small position in the government."

"…So, what do you do?"

"Boring things like parking regulations and security."

Matthew nodded. "My job is being a kindergartener. It's hard work sometimes. I'm really good at maths, but I'm bad at letters."

"So, if you're good at maths, what's 20 minus 17?"

Matthew answered without hesitation. "3."

"Very good," Mycroft said appreciatively.

Molly took a sip of tea before saying, "He gets his smarts from his dad. Worked in IT for a little while before getting transferred."

Mycroft recognized the story about Moriarty when he heard it, and just nodded in a way that said, don't worry, your secret is safe.

Molly smiled gratefully. Matthew looked between the two. They were sort of talking. But sort of wasn't good enough. "Mum, can I go to the bathroom?"

"Yes, but be quick."

Matthew left the booth in hopes they'd strike up a conversation with him gone. Plus, he really had to go to the bathroom. He was washing his hands when he saw a man with black eyes and hair wearing a white tee, jeans, beat up sneakers, and a neon green cap walk in. He came over to Matthew and asked, "Are you Matthew Hooper?"

"Yes," Matthew said, not sure about this strange man who knew who he was, but he shoved the feeling aside, favoring curiosity instead. "Who are you?"

"Oh, I've been looking for you for 5 years! I suppose you wouldn't recognize me, would you? I'm your dad."

Matthew's eyes widened. "Really?"

"Yeah." The man removed colored contacts to reveal striking green eyes. "You have my eyes. I'd recognize those anywhere."

Matthew smiled. "Wow! Why haven't you visited before?"

"I never knew where you were. So imagine how happy I felt when I recognized your mother standing in line with you!"

Matthew smiled. "Nice to meet you! What's your name?"

"James Moriarty. Though most people call me Jim."

Matthew stuck his hand out and Jim shook it. Matthew dug around in his pockets and pulled out a scrap of paper and a pencil stub. "I'd like to talk to you more, but Mum said that I needed to be quick, she'll get worried."

"Sounds like your mum. Tell you what, if you give me an address for the mailbox you use, I'll send you a letter and you can use the return address to mail me back, and we could be pen pals!"

Matthew nodded and quickly wrote down his address the best he could. "I'm not very good with letters, I'm better with numbers," he apologized.

"Me too! It's okay, I can read it. I'll send you a letter by the end of the week, okay?"

Matthew nodded. "Thanks! Is…it okay if I call you dad?"

Jim smiled. "I'd love that, Matt."

Matthew smiled at the nickname and walked out of the bathroom, pleased to see Molly and Mycroft were talking pleasantly together. He walked up and Molly glanced over at him, giving him room to sit before returning to the conversation. That's when Sherlock decided to walk in and steal Mycroft back. "Mycroft, where have you been? I've been waiting next door for 15 minutes!"

"Next door? You must have sent me the wrong address." He turned back to Molly. "Sorry, looks like I have to go. Could we continue this conversation later? Over dinner, maybe?"

Molly smiled. "Sure. It's a date. I can get someone to babysit Matthew."

"I don't need to be babysat!"

"Watched, then." Molly said as she rummaged through her purse, pulling out her phone. "Here's my number…when should I expect you?"

"Does seven work?"

"Seven's perfect." She got his phone number and smiled as he left. Matthew smiled. This might just work out!