There is a slight bit of smut in this chapter but not to much. I apologise to the people who might not like to read it, but for the amount there was I didn't want to have to upload 2 chapters.

Chapter 22

"What the fuck did you say?" asked Elliot grabbing hold of the man's uniform. Olivia got up from the coach as quick as possible, but not quick enough to stop Elliot from throwing the young man through the open door and against the wall in the corridor. Elliot stormed towards the man who was picking himself up from the floor as Olivia got to him and stood between them.

"Elliot stop" she told him as she seen the rage in his face "Baby listen to me" to she said standing between them and cupping his face. "I know you want to hurt him but you can't, think of Eli and the rest of your kids, if you hurt him you won't stand a chance getting Eli".

Elliot glared past Olivia at the other man "You need to calm down" she said "El look at me". Elliot finally looked at her and started to calm down "That's it baby" she said to him as he calmed his rapid breathing. She turned round to face the young man.

"You need to leave now" she ordered him.

"Not without my son" he told her. She felt Elliot tense up again and start to move forward but she put herself between them again.

"Do you really think we are going to hand him over to you just because you say he is your son" she laughed. "We work special victims for the NYPD we aren't just going to hand over a baby to someone because he says he is the father. Now get out of here" she told him.

"I will get him, Kathy told me he was mine, she told me she wanted me to take him and that's what I am going to do"

"Just go" said Olivia. The young man turned away.

"I will get proof he is mine" he shouted "and I will be back to take him" he said as he got in the lift.

Olivia turned to Elliot who was stood shaking "You okay" she asked knowing it was a stupid question to ask.

"He isn't getting my boy" he said going back into the room and picking up his phone and dialling it, his hands shaking.

"Hi Melinda, its El….I need you to run a DNA test for me…..No…No is not a case….I need you to tell me if Eli is mine…..I need it done tonight…Ok see you soon" he said hanging up.

"Let's go" he said to Olivia grabbing his car keys and Jacket. Olivia grabbed her coat and followed him out the apartment. Olivia called Maureen when they were in the car and told her what had happened and to get Eli ready as they were on their way to pick him up, and to no let anyone in the house. Elliot drove fast through the streets.

"El slow down please" said Olivia scared they were goin to end up crashing. He slowed down a bit.

"Sorry" he said "I just want to get there in case it's where he goes next"

"The kids are there do you really think he stands a chance against them….especially Kat" Elliot looked and gave her a small smile.

"I guess not" he replied. "What am I going to do if he isn't mine Liv…..? I can't lose him"

She rested her hand on his leg "Let's see what happens first before we start to worry" she said as they finally pulled up to his house. Elliot explained to the kids and his mom what had happened and told them about the DNA test.

"How long will it take to get the results" asked Kat.

"Not long a few hours if that Mel is going to do it herself for me, so I don't need to wait days"

"Daddy let us know as soon as you find out" said Lizzy.

"I will sweetheart don't worry" he said handing Eli to Olivia and hugging Lizzy who had started to cry.

"Don't let him take our brother "she sobbed.

"I won't I promise you" he said hugging her.

Elliot carried Eli into Mel's lab with Olivia by his side hold his hand.

"Hey Elliot" she said.

"Thanks for doin this" he said "I just need to find out as soon as possible" he said and explained what had happened.

Mel Nodded "Well let's get it done then, once I take the swabs it should take me a couple of hours to get the results"

"We will wait up in the cribs" said Elliot "I'm not going anywhere till I find out"

Melinda got two swab sticks and took a swab from both Elliot and Eli. "I guess now we just wait" he sighed. Olivia nodded and rubbed his back.

"Come on let's get a coffee" she said.

Elliot nodded "You will call as soon as you know" Elliot said to Melinda.

"As soon as it's done I will tell you I promise".

By the time they got up to the squad room Eli was fast asleep again in Elliot's arms. Olivia put down the seat from the car and took him from Elliot and put him in being careful not to wake him.

"What are you two doin here?" asked Cragen coming out his office.

"Waiting for Melinda" said Olivia.

"She is running my DNA against Eli" said Elliot looking down at the little boy.

"Why? At this time of night has something happened?" he asked them.

Olivia looked at Elliot to see if he was going to explain when he just sat she turned to Cragen. "The guy Kathy said was Eli's dad turned up tonight wanting to take him….. So Elliot thought it best to get the test done straight away, at least that way we know how to deal with it"

"I need some air" said Elliot "Can you stay with Eli" he said getting up and heading for the stairs to the roof. Olivia looked at Cragen.

"Go" he said as he picked up the seat with Eli in it "I have him"

"Thank you" she said going after Elliot.

She opened the door to the roof and saw Elliot leaning over the railings. She walked up behind him and wrapped his arms around his waist.

"Try not to worry" she said. She heard him sigh and he turned to face her.

"I keep going over the dates in my head trying to work it out"

"And?"

He shrugged his shoulders "He was born just shy of three weeks of his due date from when I slept with her, I suppose it depends on when she actually slept with him"

She pulled him towards her "El even if it comes back and your not his biological father you still have rights, you know that"

"I know, it's just I ….god it hurts so much Liv, I feel like my heart is being ripped out" He sobbed "I really want him to be mine. What is wrong with me? Why can't I just be happy, it's just one thing after another? Why are you even with me… you could do so much better"

She cupped his face in her hands and kissed him gently "I am with you because I Love you" she said looking him in the eyes before kissing him again.

"Most women would have run by now" he sniffed "I mean what the hell do you see in me…. I have five kids a crazy ex-wife who tried to kill you…."

"El I knew all this about you before we took our relationship further, I want to be with you because of all that. I am not most women. I love your kids because they are part of you and your ex-wife will be going away for a while so we don't need to worry about her, and as for what I see I you…" she said looking up at him "What I see in you is a caring, loving father who happens to be my best friend swell, plus you also as sexy as hell and totally amazing in bed which is always a plus. She grinned up at him.

"You're amazing do you know that?"

She shrugged "I have been told that every now and then" she reached up and pulled her head down to hers and kissed him

"Liv take the pain away, just for a short while help me forget, I've got so much anger and rage built up inside, I'm so scared" he asked her as he continued to cry his hand moved up under her shirt and his fingers stroked her back and his mouth went to her neck, and he gently sucked and bit her.

"I'm here for you baby, just tell me what you need" she sighed as she felt his mouth on her neck.

"I need you, I need to be in you" he said pushing her away from the railings and up against the wall, pushing himself against her.

"So do it El, Fuck me Baby, do what you need to do" she told him as she felt his erection push against her.

She felt his hands go to her trousers and undo the buttons and he pulled her trousers and panties down roughly in one go. She kicked them off as he undone his own trousers and dropped them. He looked her in the eyes as he did and she seen the hurt and pain he was feeling over what was happening to his family. He lifted her up and she wrapped her legs around him, she knew this was going to be hard and fast, he just needed a release for all the pain and anger, and she didn't mind him using her for that. He looked her straight in the eyes as he rammed into her his eyes never leaving her.

"Fuck El" she gasped as he entered her and her back hit the wall. He gave her a few seconds before he started moving hard and fast into her.

"I'm sorry baby" he grunted knowing he wasn't being gentle.

"Don't apologise "she said as he pounded into her "Just …..let it all go"

She wrapped her legs tighter around him as she pulled him into her.

"God you feel so good" he panted "So hot and tight" he knew his release was going to be quick; he knew he was using her for his own benefit, but he needed it. He also knew he would make it up to her. "shit baby" he mumbled into her neck. She felt him tense up as he rammed into her deep and stopped as he spilled inside pushing in again and again till he was totally spent.

He dropped his head to onto her chest and controlled his breathing.

"Thank you Baby" he panted as he pulled out of her and dropped her legs carefully to the ground.

"Anytime "she told him wrapping her arms around him "And anything to help" she ran her fingers through his hair "I would do anything for you El".

He lifted his head and looked at her "I will make it up to you I promise".

"I know you will" she smiled. "Come on let's get back to Eli". He nodded and pulled his trousers up as Olivia done the same. Once dressed again he took hold of her hand and they walked back into the building. He stopped suddenly and Olivia looked back to him

"SHIT LIV! I didn't hurt your back against the wall or your chest did I?" he asked suddenly remembering about her injury.

"No I'm fine ….my back is a bit sore, but you can give it a rub later "she said nudging him and smiling.

"Okay it's a deal" he smiled back.

Elliot and Olivia went into Dons office, their Captain was sitting rocking Eli who was crying.

"He has just woke up" he told them, "Started crying straight away".

"Probably hungry" said Elliot taking him from his Captain. Olivia got a bottle out the bag and handed it to him.

"Why don't I get you a coffee?"

"Yeah okay I will just stay here and give him this"

Elliot and Cragen left the office and walked across the office.

"How's he doin?" asked Cragen.

"Holding up… he is scared he is going to lose him. Any news on Kathy?"

"Looks like they are going to try and take it down the crazy route, which after speaking to Haung doesn't sound too far off, she definitely aren't thinking straight."

"I just don't want the kids any more hurt than they already are, it's hard on everyone. I know she tried to hurt me but….. Her life was falling apart, she got stuck in a lie she couldn't get out of. Then I and Elliot happen it must have been too much for her"

Cragen shook his head "I don't believe you. That woman lied, cheated and tried to kill you and you still find a way to actually feel sorry for her."

She smiled at him "To long on the job…. Seeing the story from both sides".

They finished making the coffees and carried them back to the office. As they opened the door they both stopped. Elliot was asleep in Cragen's chair with Eli lying on his chest also asleep. Olivia smiled and backed out the office closing the door. "Let's just leave them" she said.

"El…..Elliot…. wake up". He felt a hand shaking him and slowly opened his eyes; Melinda was crouched down by the chair beside him. His rubbed his eyes and finally focused on her.

"Wha…. What time is it?" he asked a bit groggy still.

"Time to take …..Your son…. Home" she told him smiling.

Elliot's eyes shot open suddenly awake.

"What did you say?" he asked sitting forward holding onto Eli.

"I said take your Son home" Melinda repeated her smile getting bigger.

"You… You mean he is ….."

She nodded "Yep well 99.9% sure anyway"

"He's mine" he said again looking down at Eli "You hear that little man, your mine" a huge grin appeared on his face and he stood up flinging his arm around Melinda "Thank you" he whispered to her.

"I'm just glad I could give you the good news" she laughed. He looked over to the door Olivia was stood next to Cragen tears on her cheeks but a smile on her face. She walked over to him and wrapped her arms around him and Eli, kissing his neck.

"Come on let's get him home to his brother and sisters and tell them the good news" she said.

Last chapter coming up I think, might do an extra long one with extra helpings of some serious M Rated bits to go out with a bang. Thanks for all the great reviews and kind words.