A/N: I just read an article that 99th Precinct is in Park Slope, Brooklyn. I know nothing about New York (aside from the few times I have been to visit) let alone Brooklyn, let alone a specific area of Park Slope, so I am going to look stuff up, and make stuff up, but honestly I'm really going to take A LOT of liberties, and just try to make my story flow and go in the way that I want it to. With that in mind, here is the next chapter.

Don't own Brooklyn Nine-Nine

Chapter 5: The Family Business

The partners approached the precinct; Amy was actively trying to ignore Jake. He was telling her things that he found out about her last night. He was telling her stories about herself in middle school, and how she had been during high school. Stories about boys, and things that your siblings and close friends tell others to embarrass the person so much.

"And then Frankie told me that you dated the same guy!" He laughed. "How embarrassing for you!" Amy rolled her eyes not taking the bait, going around him to her desk, to drop off her stuff.

"He was cute," Amy said shrugging at her partner not giving him the reaction that he wanted, when the Captain came out of his door to greet the newcomers to the precinct.

"Santiago, Peralta my office." The captain said to the two top detectives.

Santiago smiled; and walked confidently to his office. Jake followed behind her, smiling at the way she was absolutely euphoric at the notice of the Captain.

"Yes Captain" Santiago beamed, elated that she was being singled out by her supervisor.

Her hangover seemingly disappeared when in the presence of her pseudo mentor.

"Sit" the captain said in his commanding tone.

"Last night, two officers were dispatched to a noise disturbance where the officers brought in party goers in for drug possession. They have found that one is Detective Santiago," Holt began.

Jake laughed at the statement. "I don't think so. Santiago had a wild night but I'm pretty sure that she didn't do drugs."

Amy gave him a death glare, not comprehending what was going on.

"Sir," She began.

"AMY!" A dark haired man said smiling down at the detective sitting in front of the Captain's desk.

"Emilio" She smiled at him trying to restrain herself from embracing her brother.

"Yes, Hello, detective, I was just beginning to tell our best team about the case," The captain said, and Amy smiled, a smile that displayed just how pleased she was at the complement. Her hard work was being acknowledged.

"Awww…. Good for you kid" Emilio joked, going to ruffle his little sister's head. She expertly maneuvered him; in a way only a sibling can know how to get away from their assailant.

Jake smiled, and ruffled her hair for the older Santiago earning him an elbow to the gut.

"Yes, well Detective Santiago would you bring Jake Peralta, and Amy Santiago up to speed."

"Yes, Captain Holt," he said turning to the team, when a man identical to him came through the door,"

Amy knew who the other man would be. Her other goof ball brother, his twin's partner. Those two never did anything apart.

"Oh right on time!" Emilio said. "This is my partner."

"Hi Amy?" The older man said giving his little sister the thumbs up and smiling, before joining his brother.

"Okay sorry for the interruptions, Captain Holt" One of the twins said, well Jake assumed they were twins because they were identical in every way. Brown eyes the same as Amy's, dark features, the same height, and had matching smiles plastered across their face.

With a nod from Holt the two continued, by introducing themselves.

"Well by the way for those who do not know us, I am Marco Santiago" the man who just entered the room said, and pointing to the other man, "And this is my partner Emilio Santiago," He said looking at the pair of detectives sitting in front of him.

"So are you Santiago's brothers, then?" Jake interjected.

"No relation" both said with a straight face, which earned them an eye roll from the youngest in their family. With a shake of her head, and a smile from her brothers, she said "Come on, get on with it guys? What is the case?"

Amy wanted them to get on with it; she didn't need to be associated with the three idiots for longer than she had to.

"Yes, was your name Alicia?" Emilio said regarding his sister.

Jake barked a laugh, which cause the captain to intervene.

"Detectives would we let them know what is going on, if you would not mind?" He said without any cadence of a question, just the threat to get back on track with informing his team.

"Oh, yes, sir," Marco said speaking up for the partners giving a genial smile to the older man. "Well, as we know you were investigating several B&Es a few weeks ago at the Park Street Apartments, all of which to this day remain unsolved."

Both of the detectives nodding remembering the weird circumstances of the break ins, however nothing more was coming in about it, so the cases went cold.

Emilio picked up where his brother left off. "Well the break ins have been linked to a drug ring we have been tracking." He said seriously.

"We have linked some of the dealers to that apartment complex, and some parties that the deals go down at occur at those apartments." He detailed.

"That explains the amount of cash they had at in their apartments'," Jake said making the leap before Amy, could think back to the case, and how it would correlate with drug dealings in the neighborhood.

"We have infiltrated the dealers, and plan to deconstruct the organization from the inside, to get at the suppliers, and the top guys in the organization," Marco continued seamlessly from where his partner left off. "We have been undercover with them for awhile now, explaining why we were at the party, that you guys broke up last night" The man said smiling at his little sister.

"Marc," Amy interrupted her brother, "As cool as this is, what does it have to do with Peralta and I?"

"Shhhh…Santiago this is a drug bust, so cool," He said pechantaly to her partner, "Continue please, ignore her she doesn't understand what cool means," He said waving a hand at her, " What kind of drugs are they dealing? Will you want us to go undercover also?" Jake said getting increasingly more and more excited at the prospect of a kick ass case, one he would not let that ass hole Pembroke take from him.

"We will get to that part, but its cool right?" Emilio said with the same excitement as Jake.

Amy put two and two together, Jake was exactly like them, good at what they do but had a laid back approach to police work, that she would never be able to do herself, but could respect because of the results that they got.

"We have hit a plateau in our work and we know that a big deal is coming in, we just need to know when and where, and all the work we have been doing is not getting us any closer to this information, and time is running out." Marco continued impressing upon the partners the importance of what they were doing.

"We believe that one of the officers in your precinct is feeding them information or may be involved with the operation." Marco said looking back at the Captain. "We began to hit road blocks when the break in's began to occur, this may not be true, but it is an angle that we have to peruse just incase, because'

"Your covers could be blown" Amy added to her brother's last sentiment.

They nodded.

"Now we brought the two of you in because we can trust you," Emilio continued, " Well Amy is blood, and loves the law way too much, to be involved in a drug operation, and honestly if you were I would just tell on you to mom, and she would come after you" Emilio said childishly trying to lighten the serious mood that had come into the office, even Holts facial expression twitched signifying a sort of emotion, which was not always definable.

"Well, we looked into your partners financials, and well they are a mess." Marco said looking at Jake, "Concluding there is absolutely no way that you are making any money from kickbacks from a huge drug operation,"

Jake nodded, and Amy agreed with that accurate portrayal of the financial ruins that would be Jakes bank statements and credit score.

"Yeah, I do not have any money" Jake said not very concerned, which always astonished Amy.

"What did you need with a tiger cub that rented by the hour?" Marco added, questioning Jake.

"That is actually a funny story," Jake said looking over at Amy, as he was about to tell him all about the 'worst date of Amy's life', Santiago cut him off.

"What do you need our help with?" she reiterated her earlier sentiment.

"Well," Marco said, "We want Jake to keep an eye out in the precinct, and report back to us on any odd behavior, or out of the ordinary happenings with the cops here. Also look at other drug activity around Park Street Apartments.

"We want you to keep track of the files on the break ins, make sure they aren't tampered with, and just keep an eye out around the station, Holt will be doing the same from his position."

Amy could see Jake visibly deflate, he was not one to ask for more desk work, but his observation skills would be an asset to anyone's team. And being a cool undercover opp, it kept his attention, regardless of being in the thick of it among the dealers or in the office sifting through paperwork, and watching his co-workers.

"As for Amy, we were going to try this something new," Marco continued.

"We are both backed into a corner about this and if you tell Ma we put you in a dangerous situation, she will without a doubt kill the both of us," Emilio added.

Amy opened her mouth to urge them for a third time to get on with it, when Emilio continuing cut her off.

"Amy," He looked at his younger sister with concern, "we have brought this up with the Captain, and he is behind the plan as long as you are. This decision is entirely up to you. I will completely understand if you say no" rambling on about nonsense until Amy gave him an incredulous look.

"Well we want to bring you to the next party on Friday." Marco said taking over from his partner. "We have two plans that we have in mind,"

"First being that with you there, it will be easy to tell if the police mole is there at the party. You know your co-workers better than we do and will be able to spot them." He said pausing.

"And the second," Amy said urging him to go on.

"Well the second is a last resort plan in a sense." He said, "Well, Luca, the drug dealer who we have gotten close to and is having the party Friday, has a bit of a weakness for the ladies. Strong willed, and dark haired, pretty girls" He said with a shy smile.

"The last people who brought him in got the information out of one of his girl friends at the time. With this in mind, we were hoping you could possibly get his attention, and then he would give up some information, however this was a long shot." Marco said.

"Yeah, Amy do you know how to attract men," Jake said with a laugh at his partner.

"Peralta," Holt warned.

"Well that is not the only plan we have," Marco said to the detective, "We are mostly trying to possibly spot the police mole."

Once they stopped, Amy was deep in thought. It was an incredibly dangerous plan, and it could blow their covers, but if it was going to help her city, she was in, without a doubt.

"Are you guys in?" Emilio asked the two of them hopeful that they could count on the other two detectives to help them on the case.

"Yes," Amy said without hesitation. Garnering a look from each of the other men in the room.

"Amy," Jake said softly, worried for his partner's safety, "You should think a little more on this." Care and compassion filling his words, with each syllable he spoke to her.

"Nope I am in, if it is going to help, and they have done the necessary research and have weighted out the risks against the rewards which, I know for a fact they did or they would not be wasting our time or even telling us about this, I know I should do it." She said confidently.

Her brothers grinned, the captain nodded his approval, and Jake was fidgeting in his seat.

"Captain how should we proceed with our case load." She asked the superior officer, not waiting for anyone to put up a fight. She was going to go undercover, that was final.

Someone please help me change my title! I REALLY REALLY don't like it and I really want to change it. I thought that I would have made up a new one by now. However that is not the case. If you feel so inclined please give me a shout out with your ideas. Send me a pm, or put it out there in the reviews, I am super serious I am so blocked on what to call this and I am really getting frustrated with the title I stupidly choose. Hope you liked this chapter next one will be coming soon. Also I could not help but make the 21 Jump Street reference, it was too easy.

~C