Happy Halloween! I love love love this holiday so I thought I'd write you a quick chapter about it. Well the chapter is actually kind of long, but it probably would have been longer if I had the time, but I'm going out of town for the weekend. Sorry for rambling.

Fair warning this chapter is probably rated M. ;)

"Jay Halstead, why did I just receive I text message from you that is a picture of a woman barely clothed in a sad excuse for a military uniform?" Erin asked entering their bedroom after coming upstairs for the night.

"It's what I want you to be for Halloween."

"Ha!" Erin laughed at him. "You've lost your mind."

"Come on, Erin. Don't you want to be Major trouble maker?" He tried to say the name the costume store had titled the outfit without breaking into a fit of laughter.

"No. Not even a little. I'm not dressing up."

"You promised we could go to the party at Molly's after trick-or-treating. You have to wear a costume to a costume party, Erin."

Erin groaned. "I forgot I promised to go to that. Can't we just stay home, eat half of the kids candy while they are asleep, and watch horror movies like last year?"

"We did that last year because the kids were just getting over being sick, and we didn't want to leave them with a sitter. I wanna go out this year with my hot wife in a sexy costume."

"Can I just dress up for you at home?" She tried.

"Erin come on. We don't have to work the day after Halloween this year. Voight offered to keep the kids overnight. We can go out drink and have a good time with our friends, and then come home and have an even more fun time." He winked.

"Fine. Let me see that damn picture again."

Halstead smirked and turned the laptop to face her.

"No way. You get cleavage or you get legs, but you can't have both. Not going to happen. Besides I don't think anyone at Molly's would want to see me in that."

"Except for everyone single man, and arguably ever single woman in their right mind."

"Yeah right, Jay. This body has carried and birthed a child. It is not made for that skimpy ass costume."

"That body was meant to wear nothing, but unfortunately that's socially unacceptable."

Erin rolled her eyes. "You'd seriously be comfortable with me walking into Molly's wearing that? With all of those cops and firefighters there?"

Jay's face went stone for a minute thinking about all of the men that regularly hit on his wife when she's wearing casual jeans and a T-shirt, let alone a tiny revealing costume. "If I'm there, and they all know you're going home with me, then yes. They can all be jealous."

"Fine. But that's not the one. Like I said you get legs, or you get boobs, but you can't have both. I'm a mother."

"Okay fine. I'll keep looking."

"Wait, what are you going to be?"

"I'm going to wear my old army uniform."

"Really, Jay we have to have a dorky couples costume?"

"Yes. I need to make sure everyone knows you're with me!"

Two weeks later, Halloween night Erin hugged her children goodbye for the night. Jay was taking them to Voight's while she got dressed for the party. There was no way she was going to Hanks to drop off the kids after she was already dressed. She did not need, nor want her 'father figure' to see her in some tightfitting cleavage-revealing outfit.

"Mommy can't we take our candy with us?" Macy begged.

"So you can pouty lip, and puppy dog eye your grandpa into letting you eat it all? I don't think so. I let you have five pieces tonight and that's enough."

Macy pouted. "Fine. I love you, but I'm mad at you. Good bye." She sassed walking out the front door still in her little red riding hood costume because she refused to change until her grandpa had seen her.

Erin was in the bathroom doing final touches to her hair and make up when Jay tried to enter the bathroom. "Erin, can I come in?" He asked already opening the door.

"No!" Erin shouted pushing the door back closed. "Not until I'm done. I don't want you to see me until I'm all ready."

"Aw come on I have to pee."

"We have two bathrooms."

Jay changed into his uniform and sat on the edge of the bed waiting for her to be done. He didn't want to leave the room and miss her 'big reveal.' He'd never seen her actually dress up for Halloween before, so he was excited.

"You ready?" Erin called through the door.

"So ready. Get out here!"

Erin slowly creaked the door open and peaked around it only revealing her head and bare shoulders. Her hair was curled and pinned into a low side bun. She had a hunter green vintage Army wedge cap pinned onto her head, and her lips were a shade of deep red.

"Come on, Erin let me see you." Jay begged.

"She swung open the door and stepped out into the bedroom.

"Fuck." Jay spoke in a tone of disbelief while staring at her.

She really had made him choose between legs or cleavage. He'd gone with cleavage, and no part of him regretted that choice now. She wore an army green colored pencil skirt that stopped at knee length, and hugged every curve of her body perfectly. The top was a tight strapless bustier that showed more than a healthy amount of cleavage. Jay was proud of himself for being the one to choose her vintage pinup army girl costume.

He stood up and walked over to her his hands quickly reaching to roam her body. She grabbed his wrist stopping him before he had the chance to touch her. "Hands off. You made me get dressed up for this thing, so now we're going."

Jay laughed throwing his hands up in surrender. "Okay. Okay. Lets go."

Molly's had been transformed into a festive Halloween party. The music was louder then usual, the whole place darker, and an entire area had been cleared of tables to create a dance floor.

Erin stood at the bar chatting with Nadia and Kim. Her elbows rested against the bar leaning forward against it. Because of the way she was leaning her butt stuck out pulling the already tight pencil skirt even tighter against her body.

Jay tried to stay in his conversation with Ruzek and Atwater but he was having a difficult time focusing on anything besides Erin across the room. 'Damn. That is my wife.' was the thought that kept entering his mind. His eyes traveled from Erin for a moment to look around the room. He noticed a man checking her out, and instantly felt territorial.

"I'll be back." He said aloud to Adam and Kevin. He walked up behind Erin sliding his hand across her waist before letting it land on her ass. She turned to face him now leaving her back to Nadia and Burgess.

"What's up, baby?" She grinned at him.

"Are you about ready?"

"We haven't even been here an hour. No kids tonight. I'm getting drunk."

"Fine." He waved over Herman "A round over here. Actually make it two." Multiple shots of liquor later they were definitely feeling it. Jay leaned in to whisper in her ear slurring his words a little.

"I think I was wrong. I don't think I can handle them all staring at you, Erin. I don't like it."

She kissed his passionately, and somewhat sloppily. "There. Now they all know I'm going home with you." She slurred back before chuckling trying to wipe the red lipstick away that she had transferred onto his face.

"Then let's go dance."

"Nuh-uh. I don't dance, Halstead. You know I'm not a dancer."

"It's Halloween. You can be whatever you wanna be." He said pulling her out onto the dance floor.

The floor was crowded and hot and dark. Due to the lack of space you had no choice but to stand right up against your dance partner grinding against them as you moved. It didn't take long for them both to be incredibly turned on.

For anyone that knew them it was obvious they were hammered. They were never ones for PDA, in fact the members of the unit could probably count on one hand the number of times they'd seen them share anything more then a peck on the lips, but right now they were all over each other.

Erin was pressed hard against Jay's body. She stood so one of his legs was between hers and rolled her hips against him to the beat of the music. Jay leaned in and nibbled at her earlobe. Making Erin let out a quiet moan.

"Take me home, Jay."

"You're ready?" Jay asked dragging his lips across her jawbone.

"Yes." She panted.

"Say 'yes sir." He teased her referring to their costumes.

"Jay, I'm serious lets go."

He spun her around quickly pulling her hips into him, so his now hardened member was pressing against her ass. His hands wrapped around her waist, one sliding upwards so it cupped her breast. "Say it or we're not going anywhere."

"Never."

He began to kiss and suckle at the nape of her neck. Erin groaned. "Fine. Fine you win. Yes, sir. Yes, sir I'm ready. Take me home."

Jay chuckled grabbed her hand, and pulled her towards the exit to get a cab, without bothering to stop and say goodbye to anyone. "Finally. I've been waiting all night to get you out of there."