AN: I had some down time this weekend since I go back to school next week and just watching Netflix wasn't doing it for me, so I decided to write. This is based on a prompt I got on tumblr, but once I started writing, it changed direction. Kind of OOC, but it is all of my hopes and dreams for Linstead so I hope you like it. This is probably one of my favorite things I've ever written. Please review!

Erin had never been so happy; there wasn't a night when she had fallen asleep without a smile on her face. The one person who was able to do that was her partner, Jay Halstead.

They've been dating for 8 months now. Of course, for the first three they just kept to themselves in their own tiny relationship bubble limited to the restraints of their own apartments, but they didn't care. As long as they were together.

They knew all along that Voight finding out was inevitable; it eventually had to happen whether they told him or he would accidently catch them in the act. They kept it professional at work though, nobody really noticed that something had changed between the two of them. They had always been two peas in a pod, spending most of their free time together. They were comfortable around each other and that didn't go unnoticed by Voight, but he was happy for them. Erin needed someone to lean on when she couldn't come to him. He accepted that, and eventually every sign that the partners became more than just partners he just pushed aside because maybe, just maybe they were good for each other.

There was one case that happened five months ago that had really gotten to Erin. It seemed like their typical drug ring bust, but Erin couldn't help but feel the similarities of the case with her past. There was a 16-year old girl, Ava, who was selling drugs to make sure her mother would be able to get a fix every night. She was dependent on one of the heads of the drugpin and she thought she loved him, but he abused her any chance he could.

Once the case was over, Erin sat in the locker room trying to regain her composure but she just couldn't do it and tears spilled out from her eyes nonstop. She felt a strong hand grasp her shoulder and she looked up and saw Jay. "Hey babe. Are you okay?" He asked as he sat down on the bench next to her.

She sighed, "I honestly don't know. It just all felt so real, like I was looking at myself through a mirror all day." Silent tears started to fall slowly down her face. Jay wrapped his arm around her and she laid her head on his shoulder.

"You know it's okay to feel that way. There's no need in hiding it from me, Erin, I know about most of your past and it doesn't change the way I feel about you. In fact, it makes me like you even more." She smiled up at him.

They sat in silence for a few moments until Erin looked up at Jay and stared deep into his eyes, "I love you, you know that."

Jay smiled at Erin and lightly kissed her forehead, "I love you too." He replied and leaned in and gave her a soft kiss.

Neither one realized that Voight had come in to check on Erin to see if she was okay. He could see that today was tough on her. He quietly opened the door and saw Erin sitting with her back facing him and her head tucked into Halstead's neck. He was about to leave when he heard her say that she loved him and he said it back and sweetly kissed her. He was enraged at first, but then he realized that their interaction reminded him of himself and Camille. That kind of love was rare and he wouldn't be the one to ruin it.

He called Jay into his office the next day saying that he wanted to know how Erin was doing. Jay told him what happened in the locker room, but left out all of their couply stuff. When he got up to leave, Voight blurted out "I know." Jay turned around and looked at him shocked, but he was able to stutter out, "I don't know what you're talking about."

Voight chuckled, "Yeah you do."

"Well what are you going to do about it, because sir, I'm not leaving her."

"Nothing. I'm assuming it's been going on for a while now, and the truth is I have never seen Erin so happy over the past few months and I'm guessing that's because of you. I didn't ever really acknowledge the change in her attitude, but it all makes sense now. She truly loves you Halstead. I can see it in her eyes and the way she looks at you. Just as long as you don't hurt her and you both keep it professional at work, I will support it."

Jay couldn't make out any other words but a quick "Thanks."

"Now get outta here and get your work done."

Jay walked out of Voight's office with a small smile on his face. Only Erin noticed it. She'd been so nervous when Voight called Jay into his office and she couldn't focus on anything but waiting for that door to open. "What was that all about?"

Jay smiled at her and waited a few seconds before answering, "I'll fill you in later. Don't worry about it." Erin didn't question it and went back to her work.

They decided that they should fill in the rest of the team about their relationship the following weekend at Molly's. Erin was anxious and Jay tried to calm her down by telling her that it was just a normal night at the bar for them, but this time he could finally wrap his arm around her.

The whole team, minus Voight of course, sat at table in the back. They had been joking about the case they had just wrapped up for about an hour. Jay could tell Erin was tense, so he decided to take the initiative, "Uhh, sorry to interrupt the evening a bit, but I have an announcement to make." He quickly glanced at Erin who was staring down at her drink and her foot was tapping against her chair. He looked up and everyone was staring at him. "Um, first of all I just want to let you know that this won't affect work at all. So… Well, Erin and I are together." He grabbed her hand bracing himself for any backlash that could come from his announcement.

"I KNEW IT." Adam yelled, subsequently followed by a slap on the side of the head from Alvin.

"We're happy for you both." Antonio congratulated the couple. Erin smiled up at Jay and he smiled back at her. He placed his arm around Erin's shoulder and the conversation between the team continued like nothing had happened.

Since then, Erin couldn't be more content with her relationship with Jay. Sure they had a few tiffs here and there, but they always got through them and had amazing, scratch that, mind blowing sex after them. Jay always put Erin first and she had never experienced that before. She felt safe. They shared the stories of their pasts together and their hopes for the future, as cheesy as it sounds, but they also kept their flirty banter alive which they both lived for during the long days at work although neither one would admit it.

Their love is a once in a lifetime sort of thing. They were soulmates. They were meant for each other. Voight started it all when he assigned Jay as her partner. Every day since they learned something new about the other. Erin was head over heals in love with him. Jay felt the same about her.

They never talked about the next step, but they both knew that they would be together forever. No matter what obstacle was thrown in their way, they would make it through it. Hell, they got through the constant threats on their lives because of their job and they came out scotch free from Voight's first ultimatum about their relationship. Erin knew the day would eventually come when Jay got down on one knee and poured out his feelings, stumbling once or twice, and she couldn't wait to say yes. She didn't care about a huge proposal or a huge wedding, she just wanted to be officially Mrs. Jay Halstead.

She never thought she would ever think that. She was Erin Lindsay. She didn't think the day would come when she would become that girl. The girl who would take her husbands name willingly without a fight. Who had she become? She was still a bad ass, but she was in love with a hot, strong, and passionate guy, so who could blame her.

It was a crisp Friday night in Chicago, not too warm but warm enough that Erin though she could get away with not wearing a coat. Jay, of course, told her that she would get too cold because she always did, but she was too stubborn to listen. They were walking back to their apartment, formerly Erin's, after dinner at the Purple Pig when Jay could feel Erin shiver under his arm. "Seriously. I told you that you would be cold."

"I'm not cold I don't know what you're talking about." Erin tried to play it off, but she knew it wouldn't work.

Jay smirked. "So you don't want my jacket then? I guess you'll just have to freeze your cute little butt off while I'm warm."

"Shut up." They walked for about another block when Erin couldn't take it anymore. She stopped and cut Jay off from walking any further. "Okay, fine. I'm freezing. You win. Can I pretty please wear your jacket." She looked at Jay with the best pouting face she could muster.

"It's not gonna work." She wouldn't stop looking at him with that face. He sighed, "Babe, you know I can't say no to that face." He started to take off his jacket.

"I know. You've always had a soft spot for me."

"Always have. Always will. You owe me."

"With what?" She gave him a quizzical look. He raised his eyebrow and gave her his signature smirk. "Well that was a given. It's date night, Jay, how could it not end with steamy sex. Now let's hurry up so you don't freeze your cute butt off."

"Wow. I've got a cute butt."

She slapped Jay softly, "Don't let it get to your head."

"Well of you keep complimenting my body then something other than my ego will be growing." Erin started to blush.

"Well we better hurry then."

They reached their door ten minutes later. Erin was fiddling with the keys trying to get the door open. "Any day now. I'm kind of cold here." Jay complained.

"You know next time you could bring two jackets so when I steal one you'll be fine."

"Or you know you could bring your own."

She finally is able to open the door, "You know you love it when I wear your coat."

"Maybe a little." He walks over to the counter to set down his keys and wallet. "Hey can you grab my phone from my left side pocket?" He knew full well that she wasn't going to find a phone.

"Yeah sure." She hangs up the jacket and then started to search the pockets and fished out a small black jewelry box. She gasps, "Jay."

"I was hoping that you would find it when we were walking home, but I guess my plans never really go the way I want them too." He chuckles and walks over to take the box from her hands. "I know we're not really the cheesy couple who makes googly eyes at each others and confesses our love dramatically. Okay maybe a little."

"We are a little cheesy but go on." She could feel tears start to surface.

"Erin Lindsay, yes you are the most stubborn and toughest woman I've ever met, but you are also the most loving and most sensitive person I've ever met. The day we met I knew we were going to have a long future ahead of us. It took us a long time to get to be more than just partners, but I wouldn't change any of that for the world. I could go on and on about they many things that I love about you, but I don't think either of us could stand here for that long without ripping each others clothes off. But you are my soul mate, we fit together perfectly and I wouldn't want to spend the rest of my life with anyone but you so, Erin Lindsay, will you marry me?"

A single tear fell down her cheek, "Yes. A million times yes." He lets out a breath that he didn't know he was holding and kisses her passionately. He pulls away from her, opens the box and reveals his grandmother's ring. "Jay, it's so beautiful." He slips it on that finger and she can't help but stare at it.

"I was so nervous you would say no."

"In what world would I say no. I would've said yes back in the locker room where I first told you that I loved you."

"Well that's good to know." He smiles and holds both sides of her waist gently. "Now I don't want to sound needy or anything, but I would like to take my brand new fiance to the bedroom and show her how happy she just made me."

Erin can't help but feel her cheeks redden. She nodded giving Jay the signal he needed to pick her up and throw her over his shoulder to carry her to their bedroom. He lays her down gently and they make love for hours until they're both so exhausted they can barely move. Erin lays her head on Jay's bare chest and whispers words that have been on her mind since the day she told him she loved him, "You are the best thing that has ever happened to me, besides Voight saving me of course."

Jay laughs, "Did you really just bring up Voight when we're laying in bed together. Naked. Talk about a buzzkill."

Erin laughs back and looks up at him , "I just wanted you to know that I love you and nothing will ever change that."

He kisses the top of her head, "I know, I love you too. You're just so fun to mess with that sometimes I can't help it."

"Jay Halstead. You might want to be careful with your next words because what we just did might not happen for a while then."

"Oh sure. You can't resist me though so don't say what you can't do babe."

"Shut up."

"You love me."

"I do. And I will never let you forget it." She moves up to give him a quick peck. And they fall asleep in each others arms just like they will for the rest of their lives.