Thank you so much for the reviews! I appreciate each and every word.
For this one let's just pretend that Tucker is still captain on IAB, nothing serious I promise.

...

He was so lost in thoughts that he didn't listen Rollins calling him the first time.
'Hey", nothing, "Stone are you ok?" Amanda asked furrowing her brows.
"Huh?" He needed to get a grip.
"I asked if you were ok" Amanda said looking at him strangely.
"Uh yeah yeah just thinking about this case" he responded quickly. "So tell me what's that guy Tucker doing here. Something happened?"
"Nothing serious that I know about." Amanda responded "Maybe he just came to see Liv, he used to date her you know? She whispered to him "I didn't tell you nothing ok? Liv doesn't like gossip"
"Sure, no problem" he was shocked. This guy the captain of IAB used to date Olivia? And now he comes to see her. What the hell? He knows that nothing serious was going on between them but he couldn't help feeling jealous of her.
"So are they still seeing each other?" He asked holding his breath waiting for her response slightly nervous.
"Umm no. I don't think so" Amanda told him "but who knows...maybe they are together again"
Well fuck that he thought.

In that moment they heard the door opening and they saw Ed Tucker walking towards the exit.
"Detective" he mumbled to Rollins. He moved his head doing a silent "hey" to Peter.
"Bye" Amanda said with a distant tone. They saw the captain exit the station and Peter stood up quickly.
" Well I have to talk to Liv about the trial" he informed Rollins and made a beeline to Olivia's office.
"Hey" she greeted him when he entered closing the door behind him.
"Hey" he handed the folder to her. "Here"
"Great" she said holding it, reading the content "Glad this case it´s over, it was hard"
"Yes it was a difficult case, that guy is never coming out of prison"
"Want to grab a drink?" she asked him standing up.
"Can I ask you something?" he interrupted her.
"Sure" Olivia looked at him, she was sure he was going to ask about Ed, and to be fair that was her main goal. Make him jealous.
" What was he doing here? He asked her.
"What?" She acted confused.
"What was he doing here? I heard that he is your ex boyfriend" he sounded jealous as fuck but he couldn't help it.
"What the hell? Who told you that?" She asked him. He seemed annoyed.
"So what first Cassidy and now this guy? Is there anyone else you dated in here that i don't know about?" He knew he should retract , her face registered the insult and he felt bad. It was not his intention to hurt her.
"What the hell?" She whispered walking towards him. "Yeah we used to date but is over now. Besides what Tucker was doing here is none of your business " She said to his face.
"Liv" he said grasping her arm "I'm sorry"
She softened, he seemed to feel badfor what he had said.
"You're right. I'm acting like a jerk but I guess I'm a little jelous you know? I don't like to watch every guy here giving you heart eyes".
"What!?" She responded laughing. "Thats not true."
"Come on Liv you know you're a beautiful woman. I know that this is not serious" he said moving a hand between them." But i like you a lot and I can't help it. When I saw that guy in your office I felt something in my chest maybe it's too soon but i have serious feelings about you." He confessed.
She smiled to him. He was so damn cute. The truth was that when she saw him in the bullpen she was with Tucker in her office and she wanted him to saw them, to make him a little jealous. Because she felt the same way about him. She was afraid that it was not reciprocated.
But now that her doubts were gone she couldn't be happier.
"I have feelings for you too Peter." She confessed "And if there's any guy trying to flirt with me you have to know that it's not going to happen because I have eyes for only one." She whispered moving closer to him.

In that moment they heard a knock on the door and distanced from each other quickly.
"Come in"
"Hey Liv. We're heading out, see you on Monday. Bye Stone" Amanda said and Olivia saw Fin weaving at her. They said goodbye to her at unison and she headed out.
" Well I'm heading out too" Olivia said. "Noah is at his friend's house. Want to come with me?" She asked him seductively.
"Yeah" he answered smiling widely.
She laughed at his excitement.

They were heading out, the bullpen was empty but suddenly he grasped her hand pulling her to his chest.
She gasped, excitement flowing in her body. "What are you doing?"
"I couldn't wait to be alone with you Liv" he groaned in to her ear. "I couldn't stop thinking about you" She moaned in response to his words.
"Me neither" she whispered to him, her lips millimeters away from his mouth.
He kissed her hard. Tongues meeting. She encircled her arms into his neck. She suddenly stopped.
"We can't" their breaths were jagged.
"I have an idea" he intertwined their hands and she followed him to one of the empty interrogation rooms. He closed the door. And looked at her with a wide smile.
"You're insane "Olivia stared at Peter trying to figure out what was going on inside his head. This was so wrong.

He had locked both of them in one of the interrogation rooms, and he had a mischievous smile planted in his face.
Olivia could see how excited he was, and as hard it was for her to admit it, she was excited too, but if they got caught they were going to be in trouble.
"Peter" Olivia said trying to be the voice of reason."We can't. Not in here".
"Chicken" he laughed "Come on Liv. There's no one left in the office" he said. His eyes roaming all over her body " I need you right now" Peter groaned, walking towards Olivia giving her shivers.
He was looking at her like she was dinner and she was wet as hell already.
That was it. She wanted him too.
She sat on the edge of the metal table, licking her lips, waiting for him to do whatever he wanted. He grabbed her hips and looked at her.
Her heart was beating wildly against her ribcage, her nipples hardening against her shirt as he moved up, drawing his mouth excruciatingly close to hers, she could feel his warm breath against her lips.
She was instantly filled with desire, the physical effect he had on her was amazing. Sometimes she hated herself for it.
He leaned in close, his lips moving against hers.
"I want you Liv "he whispered. "Right here. Right now and I know you want me too" Her body erupted into goosebumps in response.
She needed to stop this. They could go to her apartment because Noah was at his friend's house. Or they could go to his. Who was she kidding? That was not a possibility, he was hard as fuck and she was so damn wet. This was happening they were going to have sex on the office. She felt him pushing her up against the table and moaned as Peter started biting at her neck.

Her whole body trembling from the sheer intensity . Desire cursing trough her veins. Her hands moved up, encircling his waist, roaming his back. His hands driving through her hair bunching her silky waves into fists before his mouth moves across the softness of her lips.
"You make me so fucking hot" he whispers into her ear.
She moaned his body was pressed intimately against hers, his hardness against her centre.
"Pleasee" she breathes in response, the answer exhaling into the crook of his neck. She slowly moved her face forward. Her mouth pressing intimately with his, her lips widen, parting his and he was holding his breath as her tongue slided in to meet with his.

He took his tie and shirt and pulled it off and she did the same with hers.
She felt his palm grabbing her lace covered breast. He groaned as he palmed her full breast, his mouth slipping from hers as he exhales against her mouth. He is still holding her breast when she runs a hand down the front of his bare chest, a groan falling from his lips as he squeezes her softly.
She moaned hard and his moved to her exposed neck kissing and sucking her firmly. He rocked against her softly pushing her into the table as she moved her hand to the back of his head, holding him intimately in place as his tongue teased the skin of her neck.
She moaned rocking her hip into his crotch. Peter groaned his hand grabbing the leather of her belt. His mouth was on hers again, capturing her bottom lip, drawing it between his, sucking gently.
His hands moved back up to her cheek, driving through her hair, shivers exploding across her body as she felt her nipples hardening against his chest.
Her hand moved then, undoing his belt as she tossed it off. Her hand starting to roam down his stomach, over the small patch of hair until it stills at the lip of his open pants.

Peter breathed against her forehead as he grasped the clasp of her bra, unclasping it as it gets discarded in one quick movement.
His eyes rake over her bare breasts, across and she swallowed hard when his hand moved back to her pants and pulled the leather out of the buckle before unzipping her pants and dragging it down her hips.

She grabbed his shoulders as he helped her to step out of them. He makes his way back to her, taking her in.
Her arms encircle his neck, their bare skin meeting as she moved their bodies closer. His palms sliding up her back, drawing her more intimately against his chest. She breathed into his necks as she dragged his pants and boxers down. She just wanted him inside her.

Olivia started to stroke him, his fingers sinking into the dip of the waist , his mouth was on hers, urgent as she fisted his cock. She started to increase the rhythm, he was moaning in response and suddenly his hands were slipping beneath her panties and they both moaned in unison as his fingers trailed across the wetness. Her hand stilled on his cock and as Peter trailed his fingers between her folds, rubbing her her clit.
She kissed him moaning as his fingers found her entrance; he moved her legs apart and wasted no time slipping two fingers inside. She threw her head back and his mouth was immediately on her, biting and sucking her neck. Olivia felt his fingers slide in and out of her. Her fingers sinking into his biceps.

"Fuckkk Liv," he groaned against her mouth "You're so tight" and she could barely breathe at the intensity. Perspiration was lining her back where he was holding her firmly, her body meeting his fingers. She needed to something so she started to fist his cock again.

"Oh yeah" her low moans and his groans filling the interrogation room as she bucked as the base of his palm flushed up against her clit. Her nipples scraping against his bare chest with each movement.
Peter pushed his fingers out and moved his hand up cupping her jaw as he kissed her firmly, his tongue dipping into her mouth as he spreaded her legs with his hips. She widens her legs to accommodate him.

"Pleasee" she whimpered against his mouth, sucking his lower lip.

He couldn't torture her anymore so he guided himself into her entrance, gently starting to penetrate, Olivia moaned as he moved deeper and deeper. They both gasped as he filled her entirely, relaxing into each other. His finger grabbing her hips as he started moving inside her.
She felt him sliding part way out of her before driving firmly back in.

"Oh godd" she moaned, unexpected pleasure rippling between her legs. He waits then, stilling against her, allowing her body to settle once more before he drives forward a second time, and she hissed in response as he continued to drive repeatedly between her legs, her breath starting to hitch with each thrust. She moved he head up and they locked eyes as he moved harder into her.
"Oh yeah"
'Yessss"
"Fuck Liv"
"Yessss" she hissed against his lips , his lower half moving firmly back into her. She moans arching into each thrust, using the small amount of leverage she has to meet him. He groans in response, their hips meeting faster.

"Livvvv," he groaned into her neck, rocking firmly into her when she felt her walls clamping around his cock. She holds her breath, desperate to feel the climax. He is groaning in her ear now, barely able to cling to a lick of control now as he pummels inside her.

Her body bucks into his, her moans were louder now at the pleasure that's coursing through her lower half.
"Shhhh" He kissed her trying to muffle her moans. They were at the office after all and though it was empty they were in danger to get caught.
He was picking up speed, hitting all the right spots and the need for release was building deep inside her. She could feel him getting harder inside her and she knew he was close as well.

He drives forward once more, moving his hand between her legs and she gaspsed when she felt his thumb on her clit.
"Fuckkk" she stilled against his movements, her climax knocking the wind out of her, tremors of pleasure wracking through her body.
He groaned and cursed as he felt his own orgasm building in response as her walls pulsing around him and it isn't long until he is bucking into her, she felt him gasp and his body tensed as his sticky heat spilled between her legs.

He stilled against her. She doesn't move. Their breathing was erratic and jagged until slowly they started to slow down until their chests were expanding and contracting in unison.

"Jesus Liv," Peter groaned against her neck.
"Mmmmm," she responded, her voice weak, her throat hoarse, tremors still rocking through her body as he slowly rocked his hips into her still pulsating body. "Olivia" he whispered against the soft skin of her neck.
She was holding her breath in anticipation.
"I'm yours"
Her heart thrums in response at his confession as her lower half clenches around his cock. That was all she needed to hear. She had strong feelings towards him. She felt safe with him, loved.
"And I'm yours" she whispered against his neck. He let out a breath, he was waiting for her rejection but she surprised him.
And his lips curled upward because this was just a matter of time. They started this not knowing that they were going to fall so deep for each other but this was getting serious and he couldn't be happier.

...

This shot was a little bit longer Hope you guys liked it :)