A couple of months past by since Mark came home. It was 4 in the morning and Olivia was the only one left in the precinct since she had to finish paper work for court. Mark came by to bring her coffee and some food since Tommy was spending the night at his house and watching the kids.

Olivia got up from her desk to get something from the vending machine since she had to keep herself awake while she did the paperwork.

As she walked down the hall, Mark came in and saw her. He sneaked to another hallway to come by her. She walked down the hall and he appeared on the side and grabbed her and pushed her against a wall.

"You scared me, don't do that, it's late at night and…"She started saying but he just started kissing her and wrapped his arm around her waist, since only a couple of months passed by since he came they couldn't keep their hands off each other cause Mark kept blaming it on the time they lost and she kept saying it was because of the government.

"Do what?" Mark asked smiling as he pulled away and licked his lips, which always turned her on. She smiled and gave him a kiss and started to pull away.

"I have papers to finish," She said smiling trying to walk away. He grabbed and pulled her back and started making out with her again. "Where in the middle of the precinct" She said smiling.

"No one is here" Mark pointed out smiling and started to kiss her neck and but his hands in her back pockets. She giggled and put her hands in his back pocket.

"We can't have sex at the place I work" She said smiling.

"Sure we can, trust me I'm good" Mark said smiling and squeezing her butt gently. She giggled and squeezed his.

"I know we could, but we shouldn't," She said smiling.

"Just shut up" Mark said smiling and started kissing her, she smiled and wrapped her arms around his neck. He pulled her to a small hallway and pressed her body against the wall and pressed his body against hers.

"I'm not going to have sex with you in a hallway Mark" She said as she stopped kissing him.

"The crib?" He asked smiling and planting small kisses on her neck.

"No way, I'd rather have sex in a bathroom then those beds" She said sarcastically, he smiled and looked up at her "I was kidding," She said smiling.

"You just got my hopes up" He said smiling "and something more then my hopes are up," He whispered smiling. She started laughing and pulled him out of the hallway.

"C'mon, no sex for you tonight" She said taking his hand and wrapping it around her stomach from the back. He planted small kisses on her neck as they walked together to the bullpen.

"What about Cragen's office?" Mark asked as she sat down on her chair.

"I'm not going to have sex with you in my bosses office" She said smiling as he came behind her and gently massaged her neck.

"Why? I did" He teased smiling, she looked up at him and raised an eyebrow. "Oh wait that wasn't you, must have been before I met you" He teased and pretended to moan, she smiled and gently grabbed his crotch, he jumped up.

"When was this?" She asked smiling still holding a tight grip.

"Must have been a couple of days ago" he provoked smiling, she gave a small tug to panic him. He jumped up and smiled. "Love you, it never happened, please let go of my member," He said quickly as he smiled. She smiled and let go of his crotch. He quickly looked relieved and put his hands over his crotch just in case she tried it again.

"Good, now you know what happens when you mess with me early in the morning." Olivia said smiling as she grabbed a pen and started writing again.

"What do you mean early in the morning? Elliot told me how you said to some guy you wanted his balls in a blender" Mark said smiling and sat on her desk. She looked up and smiled. "But ain't life a bitch" He mocked and ran away from the desk before she could grab him again.

"Ok, mock all you want, but no sex for a week" Olivia threatened and looked at him by John's desk. He smiled and walked behind her and started massaging her neck again.

"So would you put my balls in blender if I asked you for mineral water?" He teased smiling.

"No, your not a jerk, he was" Olivia said smiling as she did notes. He smiled and kissed her on the cheek.

"Can we have sex now?" Mark asked smiling.

"No, one week I'm cutting you off cause you mocked me" She teased him on purpose. He stopped massaging her neck and looked at her with his smile fading. She started laughing.

"Ok, then your punishing yourself cause you cant have me," He said smiling as he ran his hand down her shirt and squeezed her breast and pulled it out quickly.

"I don't get turned on easily like you, doesn't work as well as if I…" She said and brushed her arm against his groin. He let out a small gasp. She smiled and began doing her paper work again.

He smiled and pulled her chair back that she was in and sat on top of her facing her. He grabbed her face and gave her a long passionate kiss. She completely melted feeling his tongue gently massage hers. Once he could tell she was getting into it he pulled away and got off of her.

"Not cool" She said smiling and taking a breath and wiping her lip.

"Guess you're not the only one that knows how to be a tease" He said smiling and licked his lips.

"Fine, I wont cut you off if you do that again" Olivia offered smiling.

"I'll think about it," He teased smiling. She smiled and shrugged and pulled her chair back to her desk. "Who am I kidding I enjoyed that as much as you did" He said smiling as he sat on her desk in front of her. She was sitting in between his legs. He started kissing her and slowly got off the desk and sat on top of her. She dropped her pen and wrapped her arms around her his muscular body.

She smiled and ran her hands down his back tracing his muscles over his shirt. Both of them got into it that they started unbuttoning each others clothes. They got out of control not even realizing they were sitting in the middle of the squad room with half of their clothes off. Mark didn't have a shirt on and his pants were completely unzipped. Olivia's shirt was unbuttoned all the way and her bra unhooked but still on.

"Fin you getting coffee?" They heard Cragen yell out down the hall. They got startled and stopped kissing and realized they were in the bullpen.

"Cragen's office, go" Olivia whispered hooking her bra. Mark jumped off of her and pulled on his pants and stumbled to get his shirt from the floor and ran to Cragen's office as Olivia buttoned up her shirt.

"Morning, did you even go home last night?" Cragen asked coming in, luckily she buttoned up her shirt all the way by then.

"Oh, no, had some paperwork to finish" Olivia answered with half a smile. Her smile faded seeing Cragen head to his office.

"Hey Cap come here for a second" Fin yelled out from the doorway. Cragen stopped and turned around and headed toward Fin.

"What happened?" Cragen asked.

"I don't think the elevator works, we should go double check it" Fin said glancing at Olivia. She looked at him confused what he was talking about. Cragen nodded and headed out of the bullpen. Fin motioned for her to go to his office.

"How do you know?" She asked with a smirk.

"I heard you giggling, I'm not stupid, I'll stall get Mark out of there" Fin said smiling and left the bullpen. Olivia smiled and went to Cragen's office. She opened the door and Mark was sitting behind the table pulling on his shirt.

"Hey, c'mon, Fin is stalling" Olivia said taking his hand. He smiled and got up. He gave her a kiss as they came out of the office.

"I feel like I'm in high school all over again," Mark said smiling as they walked to her desk and he started kissing her.

"Hey Liv you do the papers…" Casey yelled out coming in the bullpen but stopped when she saw them kissing, they quickly moved away and wiped their lips. "Early in the morning, nice" she said smiling.

"Get a boyfriend Novak" Mark teased smiling.

"Close your zipper Anderson" Casey teased smiling and pointing to his zipper. He looked down and noticed he never closed his zipper, he quickly turned to the side and closed it.

"So you two have a nice night?" Casey asked smiling.

"Shut up Casey" Olivia said smiling and giving her some papers for court.

"Did you two have sex tonight?" John asked coming into the bullpen with Elliot next to him.

"Who had sex?" Cragen asked coming behind them, Fin following quickly.

"No one," Mark answered.

"Then what are you doing here so early and looking happy?" John questioned.

"He came with me to stop by to see Olivia" Casey lied.

"Liar, everyone owes captain 50 dollars" Elliot said smiling taking a paper out of his pocket and reading it. "Casey one week, John one month, Fin 5 months, Elliot 6 months, Cragen 4 months" Elliot finished and pulled a 50 and gave it to Cragen.

"You guys betted when we will have sex in the precinct?" Olivia asked starring at them.

"That's why I tried to get Cragen out of here cause it was his month, if only you guys had sex next month I would have gotten money" Fin said sighing.

"You guys should have told me, I could have made money off that bet," Olivia said smiling.

"Same here, thanks for ripping us off" Mark said smiling.

"Well it wouldn't be fair. Casey was the one that was way off, she gave you one week," Elliot said smiling.

"It's Mark for gods sake, you would think he would get around to it faster" Casey said shrugging.

"Cragen just made 200 dollars, not fair" John said giving Cragen a 50.

"Don't gamble when it comes to Mark" Cragen said smiling and collecting the rest of the money.

"Hey Mark can you step in for me for the annual basketball game against homicide?" John asked.

"When?" Mark asked

"Tomorrow"

"Sure, I have to get going now, you guys should have really told me about the bet I could have swayed the winning" Mark said smiling, Olivia smiled and slapped him on the stomach.

"Lets go, c'mon" Olivia said smiling and pulling him out of the squad room.

"They are so in love it makes me sick" John said smirking.

"Same here" Casey said with a smirk.

"You mean it makes you jealous?" Elliot asked smiling and looking at Casey.

"Shut up" Casey mumbled smiling.

Olivia walked Mark to his car outside the precinct.

"I can't believe they betted on us" Mark said smiling as he wrapped his arm around her waist.

"I'm so getting them back," Olivia said smiling putting her arm around his waist.

"What put their balls in a blender?" he teased as he put his hand in her back pocket.

"Yes, but I have to find something for Casey" She said smiling.

"You leave my friend alone, she has suffered enough not having a boyfriend" Mark said smiling as he pulled out his keys.

"She does have a boyfriend, she started dating Josh again"

"Josh? Josh, Tommy concert Josh?" Mark asked as he unlocked his car.

"Yes that Josh and don't become very brother on her like you always do" Olivia warned.

"Fine, I'll tell Tommy to do it" Mark said smiling and gave her a kiss and got in his car.

"Leave her alone, she likes Josh and he is actually a nice guy, call me when you get to work ok?"

"I will, love you"

"You too, bye" She said giving him a kiss and closing the door.

"Bye brown eyed girl" He said smiling and drove off. She just smiled and headed back to work.

Mark got home from work at 9 that night, Jenny and James were playing video games in the living room and Tommy was in the bathroom getting ready to go to a party.

"Hey guys" Mark said as he came in the house and saw Jenny and James. They said nothing since they were playing the game. He bent down and gave them a kiss on the cheek.

"Dad, c'mon I'm going to lose" James whined

"Daddy not now, I have to beat him," Jenny complained. Mark rolled his eyes and took her remote control and played for her until James lost. Jenny started laughing. James just rolled his eyes.

"Kiss, now" Mark said smiling, both of them gave him a kiss on the cheek. He smiled and went to see what Tommy was doing.

He got in the doorway of the bathroom and looked at his hair and made a weird face.

"You look like John Travolta in Grease," Mark said smiling and raised an eyebrow.

"Halloween party, Grease theme" Tommy explained.

"Weird, anyway don't use up all of Olivia's hairspray or I'm making you buy more" Mark said smiling and shaking his head.

"I wont, can I burrow some money?" Tommy asked as he put finishing touches on his gelled up hair.

"For what?"

"I need to put gas in my car" Tommy lied but hoped Mark wouldn't notice.

"Liar," Mark challenged crossing his arms on his chest.

"Ok, never mind" Tommy said and went out of the bathroom. Mark grabbed him by the shirt and pulled him back.

"For what Tommy?" Mark asked in a low voice.

"Nothing, I don't need money" Tommy answered. Mark gave him a look and started digging through his pockets "I'm not your suspect, you don't need to search me" Tommy said annoyed. Mark pulled out a small bag which he knew was marijuana. "It's a friends," Tommy said quickly. Mark grabbed him by the collar of his shirt and pulled him into his room and closed the door.

"Mark…" Tommy began.

"Not a word" Mark said angrily. Tommy just stood there and stared at the ground. "How long have you been using this?"

"Not long, like a couple of weeks" Tommy answered quietly.

"Why?" Mark asked glaring at him. Tommy just shrugged.

"First your doing this but you have the balls to bring it in my house, with my kids around, Second your not going anywhere tonight, so take off that stupid hair, your staying here tonight" Mark ordered.

"Look I know you might be my uncle but you can't really tell me what to do, I'm 23 and I can do and go where I want!" Tommy yelled.

"I really don't care if your 33 or 43, your lucky I don't arrest your stupid ass for this, Tommy this is illegal, its marijuana, what the hell do you think I'm going to say!" Mark yelled.

Olivia got home and could here Mark and Tommy arguing in her room. James and Jenny standing by the door and listening.

"You two, bed now" Olivia told them when she them.

"Mom, Tommy and Dad are yelling at each other," James said trying to hear.

"I can see that, go to bed now before I take your video games away, both of you, lets go" Olivia said taking them by the hand and leading them to their rooms.

"Mark you did crap when you were a kid, give me a break!" Tommy yelled.

"I never did illegal crap!" Mark yelled back, Olivia came in the room slowly, both of the guys stopped arguing and looked to see who was coming in.

"What's going on?" Olivia asked closing the door behind her.

"Marijuana, that's what" Mark said and threw her the bag and looked over at Tommy.

"Your smoking this Tommy?" Olivia asked in a shock staring at him.

"Don't ask questions you know the answer to" Tommy said smartly.

"Don't smart off to me Tommy, especially not in my own house," Olivia said giving him a look.

"Whatever" Tommy mumbled and stared at the ground.

"Keep going smart ass, I'll arrest you," Mark threatened crossing his arms on his chest and starring at him.

"Stop being such a god damn cop, for once, you want to lecture me about stupid things go ahead, after that you can go to witness protection and leave your family!" Tommy yelled and knew right away he was out of line "I'm sorry I didn't mean it" He added quickly and started to move away.

Mark and Olivia just stared at him, both of them shocked by what he said.

Mark lost it and grabbed him by the neck and pushed him up against a wall. Olivia quickly followed trying to pull back Mark.

"Say that again you stupid son of a bitch" Mark said angrily squeezing his neck.

"Mark stop it, your going to choke him, stop" Olivia said trying to pull him away, Tommy tried to breath but couldn't "Mark stop now!" Olivia yelled. Mark let go of him, Tommy fell down and started coughing and catching air.

"Mark, c'mon" Olivia said calmly trying to pull Mark away from Tommy. He just slowly moved away and sat on the bed and stared at the ground. Olivia went back to check on Tommy.

"Are you ok?" She asked kneeling down by him.

"I'm fine" Tommy said calmly holding his neck and starring at Mark.

"Lets talk about this, c'mon," Olivia suggested.

"No, there's nothing to talk about" Tommy said getting off the ground.

"Tommy we are just trying to help, you need to talk to us," Olivia said placing one hand on his shoulder.

"Not now, can I just go home?" Tommy asked looking at her.

"C'mon" Olivia said opening the door to the room and leading him out side. Tommy went out of the house and just stared at the sky. Olivia came to his side and also stared at the sky.

"I'm sorry" Tommy said.

"About which thing?" Olivia asked looking over at him.

"Everything, I know the way I talked to both of you was out of line, and for smoking that stuff and for bringing it into your house, I'm sorry" Tommy said sincerely and sat down on the steps of the porch. Olivia looked at him and sat down next to him.

"I'm glad your sorry, Tommy, Mark shouldn't get what you said get said to him and especially by you or anyone from his family, your smart and I know that, everyone knows that, but you shouldn't say something like that to him" Olivia said stroking his back.

"I know, I lost it and was completely out of line, I know and I feel horrible for saying it to him" Tommy said putting his head in his hands.

"I understand you were mad, and so was he, but your like his son and he just doesn't want you to throw away your life with stupid stuff like marijuana" Olivia said stroking his hair. Tommy nodded and hugged her. "Promise me you wont do it again"

"I promise, I'm sorry" Tommy choked out.

"I trust you, I trust you with my kids, so can I trust you not to lie to me?" Olivia asked holding him.

"Yea, I'm sorry I brought it in your house, can I go to my apartment now?" Tommy asked letting go of her.

"Yes, no party ok? I can tell by your hair you were getting ready to go to a Halloween party. Grease theme?" Olivia asked with a smirk. Tommy smiled and nodded.

"I'll go home, thanks Olivia" Tommy said and got off the steps.

"Sure, and Tommy whoever got you into smoking that you need to lose that person cause they are just a bad influence, and I'm telling you this cause I love you, ok?" Olivia said looking up at him.

"Ok, I will, tell Mark I'm sorry, goodnight" Tommy said and pulled out his car keys.

"Goodnight" Olivia said. He nodded and went to his car and drove off. Olivia sat on the porch and just starred at the sky.

She felt something cover her. She looked over and saw Mark put a sweater around her and sit behind her so she was in between his legs.

"I heard what you said," He said placing his chin on her shoulder and wrapping his arms around her.

"Which part?" She asked smirking.

"Everything, I eavesdrop" Mark said with a smirk.

"Good, how you holding up?" She asked placing her hands over his.

"I almost choked my nephew to death, just glad you were there" He said quietly and starred into the sky.

"You were mad, its understandable, he should have never said what he said" Olivia said looking at him.

"Maybe he is right, who am I to give him a lecture when I went away for two years and left you alone with the kids" Mark said and kept staring at the sky.

"Look at me baby," Olivia said looking into his eyes. He looked at her "it wasn't your choice about going away, what he did and what you did were completely different things, don't think like that, ok?" She said in a low voice. He just nodded and rested his head on her back.

"I love you" he whispered and held her tighter.

"I love you too," She whispered. They sat there holding each other and starring at the night sky.

A/N: i know the chapter is bitersweet but somtimes that just makes it better! please leave reviews!