Chapter is rated M

He watched her come into the bedroom as he rested his back against the headboard. She had a smug grin on her face that made all the blood rush to his groin, he knew what she wanted. He wanted it too. She came and sat down on his lap, her legs on either side of him. She pressed her lips to his, moving her hands around his 'V-lines' under his shirt. Her hands moved up and roamed around his abs, feeling every dip and crevice. Their tongues danced around, fighting each other for power.

She smiled into the kiss, pulling away so she could lift his shirt over his body. He leaned forward off of the headboard, so she could get the shirt off of him. He pushed her onto her back after she finished, giving him the upper hand. His lips assaulting her behind her ears as he slowly moved down her neck and eventually, her collarbone. He was met with the fabric of her shirt. He gripped the bottom of her shirt, pulling it off of her easily and continued his torture to her body. His lips moved down her upper body. Placing a kiss wherever he had the chance to. She shivered under his touch, as aggressive and blunt he was at work, he was calm and sensitive in the sheets.

His lips came down to underneath her bellybutton and he simultaneously started tugging on the waistband of her jeans. She helped him ease them off, followed by her underwear. His hands roamed around her inner thigh, her most sensitive spot. He grinned as he felt her shiver under his hands. He always knew the right ways to tease her.

When his fingers entered her, she moaned softly. They explored her insides and it was driving her crazy. The amount of pleasure she was experiencing at the current moment was unfathomable. She thought it couldn't get any better, but like always, he found her G-spot. He was the first guy in her life to be able to do that. He did it with such ease and finesse that she couldn't understand how he did it to her every time. With his other hand, he always did 'a thing'. He would put some pressure on her abdomen while his fingers rubbed her G-spot. It gave him better access to her spot and it drove her crazy. He loved it.

When she had her first release, he pulled his hands away and fiddled with the belt around his jeans. His groin was throbbing now, he couldn't wait any longer. His tip teased her before he entered. He needed his release. Just as he was about to enter, a shrill cry broke his concentration.

Jay sat up in bed, panting and sweating. The cry from Elizabeth's nursery had just blue-balled him in his dream. Erin began to stir and when she opened her eyes and saw her sweaty boyfriend, she knew what he was dreaming about. Again. It has been 3 months since Elizabeth was born and they were just recently given the all clear by doctors to take her home. They were still adjusting to the new feeding and waking schedules and it no doubt had an affect on their sex life. Erin sleepily rolled her eyes before turning to Jay.

"It's your turn, I just fed her last time so she's not hungry," Erin mumbled. Elizabeth could be heard crying through the baby monitor on Jay's bedside table.

Jay grunted as he got out of bed. He loved spending time with his daughter when she was awake and he wanted to be with her as much as he could, but being up so many times in the night was having a toll on him. He also had a problem walking with his erection.

He slowly proceeded to the spare bedroom which they had converted into the baby's bedroom, taking the baby monitor with him. When he opened the door, he walked over to the crib and bent down to pick up his crying daughter. He held her to his bare chest as he tried to soothe her crying.

"Hey, it's okay. Daddy's here." He quickly noticed she needed a diaper change, the smell was unbearable.

"How's about we get you into a new diaper?" He set Elizabeth down on the changing table and started to undo her diaper, he couldn't help but remember Liam. He remembered how much trouble he had trying to get a new diaper on back then, he still had some minor complications. Elizabeth fussed as he fumbled with the diaper.

"Just give Daddy a second, he's not really good at this."

Finally, he got the diaper on and he picked her back up. "Well that wasn't too hard now was it?" He took her into the living room, carting her around as he tried to lull her back to sleep. She was watching him as she cuddled into his chest. He couldn't help but smile every time he looked or even thought about her. His life was changing so much and he couldn't help but wish his mother was with him. She would've wanted to hold her grandchild, spoil her, take her out to the park. Jay smiled sadly as he was engrossed in his thoughts.

He took Elizabeth back to his and Erin's bed, deciding that it would be best for her to stay cuddled up with them for the rest of the night. She had other plans though. When Jay laid her down in between him and Erin she started to fuss again. She definitely wasn't in a mood to sleep.

"How about you sleep in Daddy's arms?" He spoke to her as if she would answer back. He once again rested Elizabeth in his right arm with her head in his chest. He rubbed the side of her leg with his thumb hoping it would put her to sleep.

After about 5 minutes of intently staring at her surroundings, her eyelids began to droop. Jay tiredly smiled before planting a kiss on her forehead.

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"How about we take a walk in the park today? I think it's a good time to finally take her outside of the house. We cleared it." The small family had been stuck in their apartment for the greater part of Elizabeth's life since she was brought home. It was recommended they don't take her outside too much as it could be dangerous to her immune system. Jay was starting to feel claustrophobic in the apartment and he knew that fresh air could do them all a favour.

"Hmm, I don't know if I want to go. I'm exhausted. You can take the baby if you want." Erin rested her head on her hand while she sat on the couch. Elizabeth was in the rocker near the couch, fast asleep.

"Oh, come on! It'll be our first family adventure. The three of us. The weather is finally warming up! We don't have to go too long… Please Erin." It got to the point where he was begging her. Reluctantly, she agreed.

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They packed too much for the baby, being new to this. There were 3 onesies, 4 bottles and 6 diapers. Just to be safe. They were out of their apartment around 2 in the afternoon. It was warm and the sun was shining brightly in the sky. The most perfect day.

Jay pushed the stroller with the sleeping baby inside and Erin walked next to him. They walked to Millennium Park and admired all the other families that seemed to have the same idea as them. It wasn't too crowded, much to their joy.

They stopped near the Bean and took a seat against one of the ledges. Jay lifted up the blanket that was draped over the stroller, noticing Elizabeth was still out cold. He looked over to Erin who was smiling, watching the kids play with their reflections in the Bean.

"You know, one day we'll have more than one kid and we can watch them play here."

"Let's stick to one for the time being, Halstead." She smiled and looked towards him. God, he loved that smile. He cleared his throat to get her attention again.

"Speaking about my last name…" Her eyes followed his hand as it went into the right pocket of his leather jacket. She knew this moment was coming soon, but it snuck up on her. She didn't think he would do it while they were so busy with the baby.

He stood up, and took her right hand in his left, standing her up as well. Then he bent down on his knee, opening up the box. The diamond was stunning. She could tell that he was nervous.

"Uhh… well I wanted to do this with the baby but obviously she's selfish and has other plans." She smiled at his bad joke, she's always going to love him for them though.

"Erin, the first day we met, my heart wanted to beat out of my chest. Your eyes pierced right through me and all the air rushed out of my lungs. You were literally breathtaking. And when you introduced yourself, I fell in love even more. Even with Voight's rules I couldn't help but keep my eyes on you. For all I know, I've loved you since I first laid eyes on you. We've been through so much, breakups, undercover ops, sabbaticals…" he got choked up thinking of that moment. "But even through all of that, I always loved you. I watched you suffer after having Elizabeth and trust me it was no walk in the park when she was in the NICU for 2 months. But you persisted and stayed confident even when I wasn't and that's something I want to keep in my life. You're my best friend and I don't think I've ever been able to use to statement with anyone except you. So please, why not become a Halstead, and marry me?"

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