A/N - I wrote this awhile ago and never realized I didn't post it here so here it is! It's already finished, so I'm going to post all the chapters now :) I hope you'll all enjoy it! 

Also, just going to say that this will not be a Hank/Connor story. Sorry! This focuses more on the family aspect of their relationship!

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Connor steps out of the taxi, feeling the rain come down against his face as he stares at the small house in front of him. The car is parked haphazardly outside on the driveway, leaving tire marks on the unkempt lawn. The blinds are drawn over the window, but light still filters through the cracks indicating that someone is home.

Connor walks up to the front door and knocks. "Lieutenant Anderson?" he calls, waiting for a few seconds as he listens for any source of noise. When he hears none he reaches for the buzzer, giving it a quick push. "Anybody home?" he calls again, frowning when there's no reply.

He's about to reach for the buzzer again when suddenly he hears the sound of footsteps on the other side. The door opens just a crack, revealing a small boy standing behind the door, watching Connor curiously. With a quick analysis Connor confirms the boy's identity. Cole Anderson. Hank's son. He notices the boy's eyes looking him up and down, first going to the band on his arm then towards the model number on his chest. The boy shuts the door in his face, causing Connor's LED to flare yellow for a brief moment at the noise. He's about to knock on the door again when he hears a shout from inside.

"Dad? Dad!" a voice - Cole's voice Connor assumes - yells excitedly. "Did you finally buy an android?!"

"What?!" Another voice - one that Connor recognizes as his partner's - yells back, "what android? I didn't buy an android!"

The door opens again, Cole's head is peeking out to look at Connor once more. His expression is a little sad as he stares at Connor. "I'm sorry. My dad says he didn't buy an android. I think you're at the wrong house."

Connor tilts his head, smiling down at the boy. "I'm Lieutenant Anderson's partner from work. My name is Connor."

Cole shuts the door again before shouting back into the house. "It says it's name is Connor!"

Connor hears a groan on the other side of the door. There's some cluttering and shuffling coming from inside the house before footsteps - heavier ones - approach. Suddenly, the door is thrown open, revealing Hank staring up at him with a dumbfounded expression. The detective is wearing an apron, grey T-shirt and shorts underneath, while he holds a spatula aloft in his hand. He frowns at the android, clearly annoyed at seeing him outside his home. Cole peers around his father's leg, watching the android curiously. "What the f-" Hank stops himself before rephrasing, "What are you doing here?"

"A homicide was reported 43 minutes ago at a sex-"

"At a skiing club!" Hank cuts in, giving his son an awkward smile. "A homicide at a skiing club. Yup, happens all the time."

"It wasn't a skiing club. It was a-" Connor stops himself when he sees a glare being sent his way from Hank.

"Cole," Hank turns to his son, "could you please wait in the kitchen?"

The boy stares up at Hank for a moment, clearly reluctant to go, but with one more 'please' from Hank he nods and heads into the kitchen. Hank lets out a breath then turns back to Connor, pushing him further out the door before stepping outside and shutting the door behind him. "Don't you have any kind of fucking filter for that mouth of yours?" Hank hisses quietly, making sure his voice couldn't be heard from inside the house. "You can't talk about a sex club in front of a nine year old!"

"I was only informing you about the details of the case." Connor answers blankly, clearly not understanding the do's and don'ts of raising a child.

"Not when the kid's around! He hears a word he doesn't know and a minute later he's asking me what it means. I am not prepared to tell him about the birds and the bees just yet."

Connor tilts his head. "Birds and the bees?"

Hank stares at the android for a moment before rolling his eyes and letting out a groan because he is not about to explain what that means to a fucking android. "You know what? Never mind. Just give me the details for the case."

Connor gives him the lowdown on the most recent homicide and when he's finished speaking Hank sighs, running a hand through his hair. "The man just had to die in the middle of dinner time," he grumbles, turning towards his house. Hank opens the door, but turns back around just before he heads inside. "No talk about the case with Cole around. Got it? Otherwise, wait outside."

"Whatever you say, Lieutenant," Connor replies with a small smile that makes Hank groan in annoyance.

The moment they enter Connor spots Cole peering around the corner from the kitchen with Sumo by his side. He's staring at the android in fascination, clearly interested, but too afraid to come closer. Connor doesn't pay the boy any mind. He just walks to the main room, analyzing the old records on the table and the photos on the wall. He notes Hank's music tastes, decorating style, and even searches through the police records of some of the people in the photos. There isn't much to search for though. Most of the photos are of Hank, Cole, and their dog Sumo having fun together.

"Dad needs to go back to work," Connor can hear Hank say from the kitchen. "I'm sorry."

Cole pouts, looking more than a little annoyed. "But you promised we would have burgers today!"

Hank smiles, patting the boy on the head. "Duty calls."

Cole looks disappointed as he turns away, arms crossed. Hank, apparently having seen this behaviour before, just chuckles. "How about I take you out to the playground when I get back. How does that sound?"

The boy perks up at that. "The one by the bridge?" he asks curiously, a twinkle in his eyes.

"The one by the bridge," Hank confirms with a smile.

Cole seems to consider it for a moment. "We can bring Sumo right?"

"Of course!" Hank says, ruffling the dog's fur.

"Then it's a promise!" Cole says as he leaps into his father's arms, hugging him tight as Hank gets to his feet with a laugh.

"Then I'll go get changed and call the neighbour. I'm sure Mr and Mrs Greene will be happy to watch you for an hour or two." With that Hank disappears into his room, leaving Cole alone with the android.

Connor is sitting on the couch in the main room, waiting patiently for Hank to return as he listens to the news broadcast on TV. His hands play with his coin, flipping it back and forth from hand to hand before rolling it across his knuckles. Cole walks up to him, Sumo at his side as he stares at the coin dancing across the android's fingers. Connor turns to first look at the dog, then the boy, his hand still playing with the quarter. He's not really sure what to do. He isn't exactly programmed to deal with children. He's a detective, not a care-taker. The last child he talked to was the little girl who had been held hostage by Daniel and he can hardly count that as an interaction with a child. He said what he would have said to any other hostage in that situation and he doubts Hank would be happy if he treated Cole like a hostage.

"How do you do that?" Cole asks, mesmerized by the coin being flicked back and forth.

Connor looks down at his hands, eyes following the quarter. He thinks for a moment, LED flickering yellow as he tries to come up with an answer. He doesn't really know how he does it. He just knows that he can. His hands tend to move on their own, catching and tossing the coin without much need for him to think. The action is instinctual, almost second nature to him at this point. He throws the coin up into the air then catches it on the pad of his finger, letting it spin for as long as he can maintain it before catching it in his palm. "I don't know," he answers honestly, frowning.

"Well, how did you learn how to do it?" Cole asks, leaning in closer to look at the coin.

Again, Connor frowns. The LED in his head still swirling yellow. As far as he can remember he never had to learn. He always just could. He doesn't even know if the action had been programmed into him. He had found the coin on his way to that first case and while waiting in the elevator he had pulled it out due to boredom. After that he would always find himself playing with the coin whenever he grew bored or needed to think. The action soothed him, calmed him, and Connor didn't know why.

A popup shows up in the corner of his vision.

Software Instability ^

"I just always knew," he answers, staring down at the coin in his hand.

"Can I try?"

Connor turns to look at Cole, LED turning back to blue as he smiles softly. He hands the coin over to the boy, watching with amusement as Cole flips the coin through the air towards his other hand only for him to miss and have the coin drop to the floor. He furrows his brows, picking up the coin and trying again only to be faced with the same result. Sumo nudges the boy, as though giving him encouragement as Cole tries again and again.

Connor watches the boy practice, calculating the trajectory and angle of the toss. He gauges the strength of each subsequent flick and the probability of Cole succeeding. He finds the number to be a low 20%. Despite this Cole keeps trying and with each throw the probability steadily rises. For some reason Connor wants to see that number rise to 100%.

Software Instability ^

"You're aiming too high," Connor says, "try angling your hands 5 degrees towards the floor."

The boy looks down at his hands, frowning. He flicks the coin again, a little lower this time. He still misses, but it's getting closer. The probability of success increases.

There's a knock at the door and Hank rushes from his room, wearing a fresh set of clothes. He reaches for the door while calling to Connor. "Are you ready to go, Connor?" Hank asks while an elderly couple enters the house. With a quick scan Connor identifies them as Mr and Mrs Greene, Hank's neighbours. They greet the Lieutenant with a smile as Hank apologizes for asking them to watch Cole again. Hank turns back to Connor, eyebrows scrunching together when he sees Cole standing next to the android.

"Ready, Lieutenant," Connor says and gets to his feet, about to follow Hank out the door when Cole tugs on his pant leg.

"Your coin," he says, holding the quarter out towards the android.

Instead of taking the coin Connor pushes the hand away. He smiles, "Keep it. Practise and show me when you succeed."

Cole grins, already looking down at the coin to continue practising.

"Come on, Connor! We haven't got all day!" Hank yells from the door. "And Cole," his voice softens as he turns to his son, "be good for the Greene's ya hear?"

"I will, Dad!" Cole calls back, focus still on the coin.

Connor takes one last look at Cole before heading out the door with Hank.