A\N: A HUGE thank you to everyone who favourted, alerted, read or reviewed chapter one. I hope you all like this chapter just as much. Please review. I take constructive criticism and try to learn from it. Remember if you give me constructive criticism it'll only make the story a more enjoyable read.

Disclaimer: I do not own Chicago Fire, NBC, Global, or the makers of Band-Aid.

Spoilers: None

Warning: Talk about sex.

Parenting 101

Serena let out a soft giggle as she put her hand in Matt's mouth and took hold of his tongue.

Matt was lying on the soft carpet in the family room with both twins in plan sight. Having been working days for the majority of two weeks (he covered for someone at another station for extra money) he hadn't had much time to see Serena and Michael. So he was at home alone with them for the afternoon as Gabby went out to do some shopping and spend some much needed time having lunch with Leslie Shay, her best friend.

"Hey," Matt reached out and tickled her stomach, which caused her to release her grip.

"Ghga," Michael put down his block and crawled towards Matt and lifted himself up onto his chest.

"Okay," Matt wrapped his arms around both infants and slowly sat up. "Lets play a game Daddy calls tickle monster." When he was sitting up he begin tickling each of his young children.

"I'm back," Gabby called as she walked into the house.

At the sound of their mother's voice both Michael and Serena stood up and begin toddling into the kitchen.

Not wanting to deter their independence but knowing that Gabriela needed help carrying in groceries Matt picked both twins, one under each arm.

"Nah!" Serena kicked her legs as fast as she could. She didn't want to be picked up, she wanted to walk.

"Sorry sweetie."

"Nah!" Serena let out an ear-piercing scream as she bit Matt's arm and drew blood.

"Owe," Matt grabbed his arm in pain thus releasing his grip on Serena and sending the infant to the floor. Landing with a thud Serena let out wails and screams.

"Matt," Gabriela rushed into the living room.

"Those teeth are sharp," Matt clenched his teeth as blood trickled down his arm.

"I can see that," Gabriela took her husband's arm and observed it, "Carla," She called into the kitchen, "Come here and watch the twins!"

Carla dragged her feet into the family room, "Why?"

"Because I said so," Gabriela eyed her.

"Fine."

"What's she doing here?" Matt lowered his voice as Gabriela led him towards the downstairs washroom.

"She texted me Shortly after I left Leslie and Kelly's apartment. Asked if we could talk about a few things. So I picked her up from school. She told Freddie to tell Dani.

"Ah," Matt watched Gabriela turn on the tap and gently place his arm underneath it. He watched as the blood began to wash away.

"You know," Gabriela smirked, a smile forming on her face; "You're quite capable of cleaning this up all on your own."

"Yeah but I like it when you do," Matt had a comeback, "It's sexy when you play doctor."

Gabriela couldn't help but blush.

"I think," Gabriela cleaned the wound and placed a Band-Aid on it, "That you'll live. Infants and toddlers bite when they don't have the words to communicate what they want."

"They want to walk but they fall every few steps," Matt sighed, "I want them to walk but…"

"I know. Believe me I know, But they need to practice."

"Yeah I know," Matt kissed her on the lips, "I still want another one though."

"Me too."

"I'll put away the groceries, you go talk to Carla," Matt said as they walked out of the washroom and back towards the family room.

Gabriela nodded her head, "Okay, Carla, why don't we go talk downstairs," She approached the teenager who was half-heartedly watching her cousins.

"I'd like that."

Gabriela led Carla into the basement so they could talk privately.

Shortly after she's left Leslie and Kelly's apartment she'd received a text from Carla asking if she could pick her up. She said she wanted to talk about things, things she didn't want to share with her parents.

Gabriela was glad Carla knew se could talk to her but at the same time, was conscious and knew at some point the information would have to be relayed to Antonio and Dani, or at least to Dani.

"I want-" Carla struggled to find her words, "I want to uh- talk about sex."

Gabriela choked on air. "You what-?

"See!" Carla threw her hands up in the air and let out an overdramatic sigh, "This is why I didn't want to talk to Mom. She still thinks I'm a little kid," She sulked as she lowered her shoulders and slumped in her seat.

"No, no it's good you want to talk about it," Gabriela cleared her throat, "It means to want to be safe."

"All my friends have done it!"

"Carla, you don't' know that."

"Yes I do Tia Gabby! They all know all about it like-"

"I know, I know," Gabriela cut her off; she couldn't believe she was having this discussion with her niece.

"But I didn't until they told me. I'm ready to be grown-up. I even know who I want to do it with."

"Okay, Carla," Gabriela sighed, "First of all its good you feel you can talk to me, you can tell me anything and I never want you to forget that. Secondly sex isn't something to take lightly all right? Your friends may or may not have done it but it doesn't mean you have to. I know you want to do everything they're doing but you need to be your own person. Sex, is supposed to be special and the first time should be with someone you've ben dating for awhile someone who you love and who loves you back. Do you understand?"

Carla shook her head, "How old were you your first time?"

"Sixteen and it was a mistake," She spoke in a voice that indicated the topic was over.

Not getting the hint or not caring Carla dove deeper into her aunt's past. "Is that what you didn't want to talk about a few days ago?"

"Carla," Gabby warned, "Don't push your luck."

"I have a right to know."

Gabriela frowned, "Oh do you now."

"Yeah, if you don't want me making the same mistake you'll tell me." She smirked.

"You think you have everything figured out?" Gabriela eyed her, "Well let me tell you don't. So I suggest you drop your little attitude and talk to me like the young adult you calm to be."

"You don't want to talk about it anyways," Carla grumbled.

"Carla, I'm willing to talk to you about sex, I am however not willing to talk to you about my sex life. That is a private matter."

"Then how come everyone else knows? Mom, Dad Tio Matt…"

"Carla," Gabriela held up her hand, "I'm not discussing this with you."

Carla sighed and decided a change of tactics was in order, "Can I ask why you weren't ready Tia Gabby?"

"We were both to young, we thought we were in love but it was a mistake. Now," Gabriela took hold of her niece's hands, "I want you to promise me you'll think long and hard before you run off and have sex just because you think your friends are. It's quite possible they could be lying too, they might be scared just like you."

"No," Carla shook her head, "They're all popular."

"Carla if these girls are popular because they have sex then believe me they are not the kind of friends you want."

Carla yanked her hands away from her aunts, "Now you sound like Dad."

"Well your father is smart."

"He wants to control me, he thinks just because he's seen the worst in girls my age I'll end up like that. He doesn't trust me at all. I hate him."

"Your father…." Gabriela took a deep breath, what could she say to explain why her older brother was acting like this. "This stuff, parties, drinking, boys, high-school it's new to your father and mother just like it's new to you and Freddie. You're bot growing up and your parents are trying to set the rights limits and understand everything that's happening to you. It'll take awhile for everyone to adjust but if you ever want to talk I'm always here,"

"Thanks," Carla smiled and Gabriela kissed her forehead.

"Now go home before your parents think I kidnapped you."

"Promise you won't say tell anyone about what we talked about? Not even Mom?"

Gabriela bit her bottom lip. She knew from the beginning that Carla would want her to keep their converstation a secret but she still didn't have an answer. Could she keep it a secret? Should she?"

"Okay Carla I will but promise me if you do decide to have sex you'll come to me or another adult you trust about the us of protection."

"Okay," Carla agreed as she headed up the stairs.

"Good now I'll drive you home, go get in the car."

Carla didn't argue she just got on her shoes and walked towards the garage.

"What was that about? Anything serious?" Matt stood from the floor and approached his wife.

"Just girl talk I'll be back in twenty" She kissed him on the lips before getting her own shoes and coat on and heading towards the door.

"Nah!" Serena screamed as she attempted to run away fro Gabriela. "Nah!" She screamed and kicked her feet as Matt easily scoped the one year old into his arms.

"She's been acting like this all day!" Gabriela had to raise her voice over Serena's ear piercing cries. "How long did she sleep this afternoon?"

"Not long, but I didn't think it was a big deal, I thought she was just teething" Matt was now worried he's shrugged off the problem far to quickly.

"If she'd stop squirming I'd take her temperature," Gabriela let out a frustrated sigh, "She feels warm and she didn't eat much for dinner. I don't think its teething. I'm going to call my mother see if she knows."

"Dr. Esmerelda Gonzalez walked into her office just as her personal cell phone was ringing. Her daughter's picture flashing across the screen she swiped and answered it.

"Mom," Gabriela avoided the pleasantries, "Serena has a high fever and she didn't eat. I'd take her temperature but she won't stop crying."

"It sounds like the flu. Your brother mentioned it was going around the children's school. Call her pediatrician and see if you can get a prescription for some medicine."

Now that Gabriela knew what was wrong she relaxed and her medicine training came back to her, "I guess Michael probably has it as well."

"Probably," Her mother told her, "But it's about an eighty percent chance he will."

"Thanks Mom, I don't know what I would have done without you."

"You're welcome sweetie. If you need anything else my lines always open."

"I know, I love you Mom," Gabriela and her mother had always had a good relationship but ever since her father had died Gabriela was sure to tell her mother just how much she loved and appreciated her every chance she got.

"I love you too sweetie," And with a click Esmerelda had hung up the phone.

It was now ten o'clock at night and Matt was trying to give Serena her medication while Gabriela was cleaning up Michael who had woken up only to puke all over himself and his crib.

"Look Serena the train is coming, open up for the train," Matt, for what seemed like the hundredth time tried to get his fussy daughter to take her medication. "Come on sweetheart I promise It'll make you feel all better."

Serena shook her head.

"Yes princess you need to take your medication," Matt told her as he held the spoon to the tip of her lips, "Now open up

Serena kicked her feet.

Matt had almost reached his breaking point, He had spent almost two hours trying to feed his daughter the medication and nothing was working. She wouldn't even take it with water or juice like the pharmacist had suggested.

So standing up he placed the medicine on a nearby counter and went to collect his cell phone. He dialed Esmeralda's number. He figured his mother in-law might be able to help.

"Hi Matt, everything alright?" Esmerelda asked as she held her phone to her ear while she typed up reports.

"I can't get Serena to take her medication. I tried everything the pharmacist suggested but she won't take it. I wouldn't ask if she wasn't to cranky but do you know of anything that might help."

"Gabriela and Antonio used to take it with some yogurt. That might work."

"Thanks. I'll try it."

"If it doesn't work call me back."

"I will," Matt pressed the end button on his phone and walked towards the fridge. He took out a small container of yogurt and grabbed a small bowl from the cupboard. He poured a tiny bit of the yogurt in and then poured the medicine in and stirred it.

As Matt carried the small container over to Serena's high chair the infant's tired brown eyes perked slightly.

"Okay sweetie, lets see if you'll eat some yogurt," Matt dipped the spoon into the bowl of yogurt and offered it to his daughter.

Ever so slowly Serena opened her mouth and swallowed the yogurt. She then had two more small bites before she began to cry again.

"Okay sweetheart, just one more little spoonful and the medicine will be all gone," Matt tilted the spoon into his daughter's mouth. She swallowed most of it and Matt smiled as he lifted her out of her high chair, "Daddy will tuck you into bed. I'll give you a nice warm blanket and a teddy bear," He soothingly rubbed her back as he carried her towards the stairs.

Upon entering the nursery he found Gabriela rocking Michael to sleep. The infant's blue eyes nearly closed, that was until Matt walked into the room.

"Sorry," He quickly apologized to his wife.

Yawning Gabriela waved it off, "Did you give Serena her medication?"

"Yeah I called the expert apparently mixing it with yogurt does the trick,"

Through her sleepiness Gabriela offered a small hint of a smile, "Glad to see it still works."

"Like a charm. The only problem is she might throw it up later but at least she took it."

"If she throw's up you're cleaning her up," Gabriela spoke with seriousness in her voice.

"That seems fair," Matt changed Serena's diaper and then changed her into a pair of warm footed pajamas. He gave her, her favourite blanket and rocked her in his arms as she sucked on it.

TBC

A\N: Please review and tell me what you thought of the chapter.