Fandom One Shots Book Three

Jay Halstead x Cop!Reader

Thanks to JulietteSmythe, Thomas2921, squishyboical for your help in this, I really appreciated it.

Jay stared ahead as the coffee maker shook and rattled as it made what seemed to make the thousandth batch of coffee. Intelligence was in the middle of trying to find a serial killer who was taunting them, leaving messages and riddles for them to solve him. Due to this, there were several evidence boards set up throughout the room. Two of the evidence boards were based around the victims, there were coloured lines and Jay's notes showing the evidence that had been collected as well as any connections Intelligence had made. The third and fourth were old corkboards dragged out from storage, that even Voight and Platt had both remarked that it was strange that they had been held onto all these years. Jay looked over at the bullpen, Voight was in his office fielding calls, Hailey had taken Atwater to go talk to a witness. Ruzek and Burgess were going back over the case files of the latest victim.

You were busy pouring over a riddle that the killer had left behind, you were sitting at your desk, one leg curled under you, the other was bent at the knee leaning on the desk. You had one hand holding your head up; elbow on the desk, your other elbow was resting on your knee. Jay watched as your brow furrowed as you attempted to solve the riddle, your lips moved silently mouthing the words as if that would make it suddenly make sense to you. You tugged your bottom lip between your teeth and nibbled it slightly before releasing it and repeating the motion but this time keeping the lip between your teeth. Jay shifted on the table he was leaning against. He could almost feel your lips brushing against his, softly pressing back, feeling your teeth tease his bottom lip and tasting the coffee you had finished from your lips. He shook himself out of his daze and made up four coffees, one for each member in the bullpen. As he did, he missed your shift of focus, you watched Jay make up the coffees, each different. You watched as his back muscles stretched under his shirt as he reached for another mug from the upper cupboard, you wanted to know what the taunt muscles would feel like under your fingertips when your ran your hands over his back as you kissed. Turning back to the riddle as Jay picked up all four mugs and headed back to his desk. He placed Burgess' and Ruzek's on their desks before handing you yours, "thanks Jay." You rewarded him with a smile, he grinned back at you before turning to his own case work.

A plan was formed, not the greatest that Intelligence had ever come up with, but it was a plan, nonetheless. You and Jay had been volunteered for going undercover as a couple, Jay was dressed in a simple black button-down shirt with trousers and a suit jacket. You were wearing a feminised pantsuit as well, a white blouse the front crossing over each other, your trousers were black and the heels that you had slipped into were also black. You adjusted the gun that was concealed at the small of your back as you pulled your blazer straight. Voight was running through the details, as you and Jay pushed the earwigs in deep. Jay flickered his eyes to you as he checked that he had the bugs and camera's in his pocket and made sure he had his gun secure. His eyes swept over you, admiring the cut of your pantsuit, the way the blazer stopped at your waist and the way your blouse showed a hint of cleavage. Voight told the pair of you that Hailey would be in the SUV around the corner; ready to whisk the pair of you out of the area as soon as you stepped outside.

Hailey pulled up around the corner and both you and Jay got out of the car heading into the building. Hailey drove off. Jay's hand floated at the small of your back, as you both entered. It stayed there as you walked through the halls towards the conference room. Kim and Ruzek were going to be watching in the van across the street. At first you and Jay distracted the suspects. Jay's arm had snaked around your waist keeping the appearance of a loving couple. Ruzek was making snarky comments about you and Jay pretending to be a couple. Jay was trying to ignore them; you were biting your lower lips occasionally to stop yourself from wither snapping back or laughing at them. Burgess and Ruzek gave the all clear, that you had the chance to plant the bugs and cameras. This meant that you and Jay were free to leave, the suspects moved to talk to someone else so the pair of you slipped out of the room. Jay walked slightly ahead of you, it was mostly a holdover from his days in the military but now it was more than that, it was to protect you. Jay knew that you could defend yourself, but he didn't want to lose you, and walking partly in front of you was giving him some sense of control of the situation. You kept an eye on your backs, watching to see if someone had noticed the pair of you leave. As both of you were planting the bugs and cameras, you kept an eye out for anyone coming your way. As you both left the office area and were heading to the exit, Burgess told you that you both had to find somewhere to hide, she had spotted through the hacked cameras in the hallway that someone had left the conference room and was heading your way. You both looked around for a spot to hide, Jay found it first; he slipped a hand around your elbow and tugged you towards him.