A/N: Hey! I've been updating rather quick. I'm on winter break and have a lot of time on my hands to write so you can expect an update at least once a day or more depending on how much free time I have. This was partially written at a restruant in Wicker Park called Mott St. And also partially written while babysiting. Without further ado, chapter 4!

They've been at it for months. And they got really good at it, the whole sneaking around dating thing. If you asked both of them, they'd say it was hot, but exhausting. Jay had a hard time keeping his hands off of Erin at work (pun intended.) And Erin caught her self checking Jay out various times of the day. Sending him text messages telling him to meet her in different supply closets and making out in her car while out on the job. Things would be so heated and sloppy at work, and at home it would be passionate and sensual.

Erin was having a tough time balancing a relationship with Jay and spending time with Voight. On multiple accounts Voight would ask Erin to stop by for a drink or Sunday dinner. And each time, like any questioning father, he would ask if she was in any serious relationship. She felt bad lying to him, but she knew if she were to tell him he'd castrate Jay in a heartbeat. Her and Jay wanted to wait to let anyone know about them. Although, most of the unit was catching on quick when they would leave Molly's together or catch them after what could've been an awkward situation at the district. They were just glad that Ruzek was pretty much oblivious because he has a big mouth.

Jay's younger sister, Taylor, got engaged last summer and her wedding was this month. Taylor had RSVP'd Jay as "Guest, plus one," assuming he would bring a date. Jay had been reluctant to ask Erin, assuming it was to early for her to meet his entire family. But to his luck, she found the invitation Jay had tucked away underneath a growing pile of mail on his coffee table.

She quizzically looked at the invitation, "Who's Taylor? An ex-girlfriend?" She was genuinely curious. And also curious to why he hasn't told her about it since the date was next week.

"Uhh," he laughed and grabbed the invitation. "It's my sister actually. She's getting married next week."

"I can see that." Erin laughed halfheartedly. "Are you going?"

"To be honest I completely forgot about it. I've been distracted by this girl at work." Jay winked in Erins direction. He walked over to her, who was sitting on the countertop. He stood with his arms extended out holding her waist.

"Oh yeah? Tell me more." She said wrapping her arms around his neck and placed peppered kisses along his jaw line.

"Well, she makes it really hard to work around her. She's got this infectious smile and has an adorable laugh. And her eyes. I can get lost in them." Jay said smiling as he kissed her neck.

Erin shifted her neck to give Jay better access."Mmm. She sounds great."

Jay lifted his gaze to Erins eyes as he caressed her hair. "And I'd really like for her to come with me to the wedding." He looked directly into her eyes and gave his signature smirk. God that look killed her.

"You mean, I get to spend a weekend with you, free alcohol, and we don't have to hide our relationship from anyone?" Erin beamed at the realization that for an entire weekend they could be boyfriend and girlfriend. No hiding. No pretending.

"Yep. I want to show you off to my whole family." Jay said smiling ear to ear.

"And I get to meet your family." Erin said, her face glowing.

Jay didn't know what he was worried about, Erin loved the idea of meeting his family. That's why he was reluctant to invite her, thinking that maybe she would think it was too early and she would get freaked out or something.

Truth is, Jays parents have wanted to meet Erin for some time now. Ever since he'd been promoted to Intelligence he raved about his partner to his family.

"So Jay, how's it up with the big dogs?" Jays mother questioned. He had been with Intelligence for about a month and this was his first time visiting since the promotion.

"It's amazing. I feel like I fit in great there." Jay smiled while savoring each bite of his mothers cooking. He had gotten used to take out that he forgot what a home cooked meal was like. "My partners great too. Erin, is her name." The name "Erin" came off to his parents as "Aaron."

"And what is he like?" His father asked.

"Uh, she. Actually. She's hands down one of the best cops I've ever worked with. The other day, she took down a guy twice her size. She's tiny, but suprisingly powerful." He laughed at the thought of this tiny woman tackling down a 200 pound man. "She's not hard on the eyes either. But a girl like that's gotta have a boyfriend." He shook his head and dove back into his meal.

"Well she sounds amazing. You should bring her around soon so we can meet the girl who keeps our boy in line." His mother said, placing her hand on his.

"Sounds like you've got a crush on her." Jays father said, looking at his only son.

"Hah, yeah. Something like that." Jay said, smiling.

It was the weekend of the wedding and Jay and Erin were packing up Jays car, ready to drive to Skokie, where Jay grew up. The wedding was being held in a church in Evanston, and the reception was at a nice hotel overlooking Lake Michigan with a view of Chicago in the distance.

The drive wasn't too long and Erin didn't complain of Jay diving since she didn't know where she was going. Erin couldn't help but feel a little nervous about meeting Jays family. To be honest, she's never met a boyfriends family and she was worried that she would make a fool out of herself.

"I can hear you thinking over there." Jay said without taking his eyes off the road. During this time of day on a Friday, the roads were fairly empty, but the last place you wanted to be was I-94 with construction going on and people driving like idiots. He instinctively grabbed her hand and brought it to his lips. "They're going to love you, you know."

Before they knew it, they were pulling up the driveway to Jays parents house. It was a little after 10pm so he just let himself in not knowing if anyone was awake. To his suprise, everyone was still awake awaiting their arrival. Sitting in the kitchen was Jays mom and dad, his older sister Cassie and her husband Daniel. Their two kids, Jacob and Matthew were asleep already.

"Jay! You made it in one piece!" His sister soft-yelled from the kitchen, not wanting to wake the kids up.

Jay grabbed Erins hand leading them into the kitchen. "So this is where Jay grew up.".

Jay laughed. "Guys," he pulled Erin into his side. "This is Erin. Erin, this is my mom, Laura. My dad, Mike. My sister Cassie and her husband Daniel."

"Oh! Erin, your partner?" His mother asked, waving her finger between the pair.

"Partner, and girlfriend." He said, rubbing his hand up and down her arm.

"It's really nice to meet you all." She turned to Jays parents. "You have a lovely home."

Jays mothers smile was ear to ear. "You two make a beautiful couple." This made Erin smile. It was nice to be recognized as a couple. Something that they haven't heard from anyone else other than themselves.

Jay had made a non-verbal communication with his father. He had given him the slow nod of approval. Knowing that his parents liked Erin just made him fall even harder for her.

Erin turned to face Jay and he automatically knew she was ready for bed due to the look on her face. "Alright guys, it's been a long week and I think we're gonna crash." Jay said pointing his thumb behind him, gesturing towards the stairs.

"Well alright, sweetie. We were all going to go out for breakfast at Annie's at 8 if the two of you are up for it." Jays mother asked the pair.

Erin looked up to Jay, and then to his mother. "Yeah, that sounds nice."

"Alright, well goodnight you two." His mother beamed.

"Night guys" Jay gestured towards the group, his arm still draped around Eris tiny frame. She looked back and smiled at the group.

Jay grabbed their bags that they left at the foot of the stairs and made their way up to his old bedroom. He got him and Erin situated for the night and went to the hallway to grab some extra blankets and towels for the morning, where he was met by Cassie.

"You did good, baby brother. She's cute." She said in a congratulatory tone, squeezing his shoulder.

"Yeah, she's amazing." Jay smiled. "How are the kids?" Cassie's twins. They were about 9 months old.

"They're a handful, I'll tell you that much. They've missed their Uncle Jay though." Cassie lived further into the Chicagoland suburbs in Plainfield. With Jays hectic schedule and her with the twins it was hard to check in.

"Huh, well then they take after their mother." He joked as she playfully smacked his shoulder.

"And with that, goodnight, Jay." She said as she walked into her bedroom.

Jay walked back into his room, seeing Erin already laying in bed dozing off. He climbed in next to her, and right away she nuzzled into his side. He placed an arm over her, stroking her hair slightly. Her breathing evened out and with that she was asleep. Jay placed a soft kiss ontop of her head and settled in for the night.