A/N: Just a little oneshot because why not! I like the idea of Hotch and Emily not getting along (almost as much as I like them having an affair). I really liked simandzayn's story "No-one has to know" and that's where the inspiration for this came from. So if you like my story go check out theirs after.

Enjoy!

Emily Prentiss was fuming. She could feel that familiar wave of heat go through her body and it was quickly clouding her judgment. A few days ago Hotch had once again dismissed her theory about a killer and now it turned out that she had been right.

Emily had no idea why he hadn't listened to her but what was really getting her mad this time was that he didn't even acknowledge that she had said it, even when she pointed it out during the meeting. Hotch was famous for doing this to her, among other annoying things. The two of them were constantly fighting and disagreeing, and there was always tension between them and the rest of the team was well aware of it too. Especially when Emily turned out to be right because Hotch would never admit it and would never apologize.

It was the end of the day and Hotch dismissed the team from the meeting. JJ put her hand on Emily's shoulder and gave it a gentle squeeze as she left but it did nothing to comfort Emily. Emily watched as her teammates left the room until she was the only one left and tried everything she could to calm herself down and pretend like it didn't matter to her. But it was no use, she needed to yell at him. So she did.

In one swift moment she pushed her chair out from the boardroom table, got up, marched out of the boardroom, and up the catwalk to Hotch's office. She opened the door without knocking and slammed the door behind her. Morgan and Reid, who were cluing up for the day, looked up from their desks and glanced at each other. They knew another yelling match between the two of them was long overdue.

"What the fuck is wrong with you?" Emily yelled as she stormed into Hotch's office, before the door even slammed.

"Emily." Hotch warned, feeling his anger start to bubble up.

"Don't Emily me." She countered. "You completely disregarded my theory two days ago and now it turns out to be true! Why do you never fucking listen to me?" Emily yelled like a teenager yelling at their parents, while taking a few steps into his office.

"I didn't disregard what you said." Hotch replied, raising his voice despite his best efforts. "You just didn't have any creditability at the time. You were just talking out of your ass. "

Emily's mouth fell open. "Talking out of my ass? I was right you fucking prick!" Emily felt her whole body shake with anger but her voice was strong. She was sick and tired of Hotch just ignoring her victories and harping on every single, little mistake.

Hotch watched as the woman in front of him got angrier with each passing moment. He didn't know what it was about Emily but she somehow always managed to get under his skin. He didn't know where it had started or why but she had turned into one of the most infuriating people he had every met.

From Emily's point of view it was very similar but she also always liked to challenge authority, just ask her mother. She just wished Hotch wasn't so goddamn maddening so that she could actually enjoy fighting with him every now and then.

Hotch stood up from his desk. "Really, name calling?" He challenged in a tone that was somewhat calm and level. He huffed. "This is pointless."

"Pointless?" Emily questioned in disbelief. "Why don't you ever take me seriously? Haven't I proven myself to you yet?" She hissed, trying but failing to get herself under control. Hotch didn't respond, just narrowed his eyes at her.

She stepped closer to the desk. "Well, unfortunately for you I have no intensions on trying to please you." She put her hands on the edge of the desk and slowly leaned closer to him, glancing up at him slightly because he was standing above her. "I'm here to do a job that I already know I do well, not try and meet your impossible standards." She took a deep breath and leveled her breathing, despite her racing heart. "So you can just fucking deal with it." She said slowly with a tone that Hotch was sure she learned from the devil himself.

Hotch smirked at her and that made Emily's blood boil again. She wanted nothing more than to smack that stupid smirk off his face. "Everyone else meets my standards just fine." He leaned on his desk as well so that he was eye level with the fuming brunette. "Everyone. Except. You." He stated slowly. "What does that say about you?"

Emily's mouth fell open slightly and her grip on the desk tightened, as she glared at him. She watched as her barely controlled breathing matched his. She couldn't believe how much they fought and how much it affected her. She was hardly able to keep her body from shaking and she had no control over the red flush that was making her face and ears burn.

"You fucking asshole." Emily said in a heated but breathy voice.

"You wanna say that again?" He challenged.

"You fucking asshole!" She repeated, yelling this time just to make sure he heard her clearly. "Just because you have no control in your personal life doesn't mean you can take it out on me. You are insufferable! You are the most annoying person I have ever met!" Emily huffed, getting closer to him. She had never been this close to him before. She looked at the features of his face, his strong jawline, and his eyes clouded with anger and displeasure.

Hotch didn't say anything back, he was momentarily distracted by their closeness, the feeling of her hot breath on his face, and the slight smell of perfume that she had no doubt applied early that morning.

"Say something." She countered with venom in her voice. When he didn't answer her she let out an animalistic frustrated and angry noise before grabbing his tie and pulling his face to hers and smashing their lips together. Hotch moaned in surprise but immediately responded by pushing his tongue through his lips. Emily had never done anything like that before and she didn't fully understand why she was doing it but she caulked it up to the anger and pent up tension between the two of them finally hitting the breaking point.

The kiss was heated but awkward because Hotch's desk was between them. Hotch pulled on her arms slightly and she pulled herself onto his desk without breaking the kiss and slid over it to his side, papers and pens falling on the floor by accident and then on purpose as she flicked a file across the room without a care.

Hotch pushed her legs apart and stood as close as he could to her body. "You're cleaning that up." Hotch panted as he trailed open-mouthed kisses along her neck.

"Fat chance." Emily moaned when she felt him suck on her pulse point, as she pushed another file on the floor, just for good measure. Hotch growled in her ear.

Emily pushed his suit jacket off his shoulders and onto the floor quickly as he stripped off her shirt. He trailed his kisses from her neck to her shoulder where he bit her slightly before moving down her chest forcibly. She pushed back against his force and started unbuttoning his shirt. Hotch unbuckled her bra smoothly and ripped it off her body. He put his hand on her chest and pushed her back forcibly so that she was lying on the desk.

"You drive me up the wall." Hotch moaned before biting at her skin and sucking on her nipple harshly and fondling the other one just as hard.

Emily's back arched into his touch and she grabbed a fistful of his hair and kept him in place. "Do something about it." She moaned with a breathy gasp as her body grinded against his.

They both knew it was wrong but there was no chance they would be able to stop. Emily needed to get the hate and anger out of her body. She was tired of his bullshit and she was so turned on that anyone could walk through the door and she wouldn't care. No one would though because it was the end of the day and she was almost positive that everyone was gone home.

He pushed away from her and stood up, partly to look down at her but also partly to show that he was still in control. He stood between her legs as her torso laid on his desk and her head rested on a few books, slightly sideways. Her lipstick was smeared, her hair slightly messed up, heavy breathing that caused her chest to rise and fall rapidly, and a look of desire and hate across her face that made it all the way up to her eyes.

Emily sat up and pulled his tie over his head but before she could throw it he took it and placed it over her head, letting the stiff material lie loosely between her boobs. His lips crashed to hers again and Emily would never admit it but he was a great kisser and she felt her desire spread at the thought of what else he could do with his mouth.

Emily gave up on his shirt and moved to his pants. Her hand teasingly brushed over his erection causing him to moan into her mouth. She made quick work of his belt and then the buttons and then the zipper before pushing his pants and boxers over his hips, all without looking or breaking the kiss. Emily felt him smile against her lips. She pulled away from him. "Impressed?" She asked with a smug look on her face.

"Nothing you do impresses me." He assured as he kissed a path to her neck again, this time biting at her skin as hard as his words did.

Emily scoffed at him. "Fucking dick." She moaned as she tried to stop but couldn't help herself as her body grinded against his when she felt his erection at her center.

Emily dug her nails into his skin harder than necessary and slowly dragged them down his chest and toned stomach, causing Hotch to hiss in her ear. He unbuttoned her pants and pulled her off the desk to stand so that he could push them off her hips. When they landed on the floor she stepped out of them and kicked them aside as Hotch's hands went down her back and grabbed her ass and he groaned in her ear. His hand lifted slightly and he smacked her ass, not hard because he was testing the waters first. She let out a slight gasp of surprise so he smacked her ass again, a little harder this time.

"Is that really how hard you want to spank me?" Emily challenged, once again seeing through his bullshit. "Bend me over your fucking knee." She said harshly into his ear.

Never wanting to listen to her, he bent her over his desk and grabbed his tie that was still around her neck and pulled on it slightly. He watched her in awe, as her perfect ass was displayed and waiting for him. He massaged her ass and then reeled back and spanked her hard enough to send her forward slightly. She cried out at the shock and initial pain, but her cry turned into a moan as the pain dulled into warm pleasure. He did it again. And again. And again. Each time earning a slightly different sound as her ass turned pink. Emily felt her pussy get wetter and wetter with each spank and the loss of control.

Hotch loved the power and the control, and he especially liked the payback for Emily getting under his skin, even of she did enjoy the punishment. Hotch really believed he could do this all day but his dick ached for attention. He let go of the tie and Emily fell forward slightly.

Emily stood up and turned around to kiss him again. Their tongues battled as Emily sat back on the desk, moaning as the cool surface soothed her ass.

When they parted Hotch took a second to look at her. Her lipstick was virtually all gone, hair messier than before, and hickeys forming all along her neck and chest. He smirked to himself, she was going to be pissed about that. Emily leaned back on the desk again and he watched as spread her legs wide for him. He eyes roamed her body, taking note of her stiff nipples, heavy breathing, and glistening pussy, all because of him.

"Waiting for an engraved invitation?" Emily asked, raising an eyebrow and pulling him from his thoughts.

"Stop talking." He demanded as he pulled her thong off and quickly entered her without warning.

"Oh fuck!" Emily cried as she felt every inch of him be swallowed by her. Her eyes rolled back and her breath caught in her throat. Hotch pulled out of her and entered her quickly again, rendering the same response for Emily.

His thrusts were slow and long and they were sinful torture for Emily. "You're so tight." Hotch groaned through gritted teeth as she felt him tighten her lower muscles more. He glanced up and saw her breathless grin. "You little minx." He growled.

"Come on Hotch." She moaned, egging him on. She grabbed his dress shirt that was still half on him and pulled him closer to her. "Fuck me like I know you want to." She breathed before capturing his lips.

He thrusted into her as hard as he wanted to just once to test the waters and stopped deep inside her. Emily's body tensed as she was thrust forward and she broke the kiss in order to scream.

When he didn't move she rolled her eyes. "Hotch, if you don't fuck me I'll leave." Emily warned and Hotch scoffed.

"I'm sure you will." He countered before starting the pace that Emily was craving. He knew she was just saying that to get under his skin and of course it worked.

Hotch had to loop his arms around her thighs or he would fuck her right off of the slick surface of his desk. Her boobs bounced with her body and it was one of the most mesmerizing things he had every seen. One had left her leg and grabbed her boob, squeezing and pulling on her nipple. It must have felt good because one of Emily's hands did the same to the other boob. Her other hand ran through her hair as she continuously moaned and cursed. It was music to his ears.

He could already feel Emily's pussy start to contract around his dick and he knew she was close.

"Are you going cum already?" Hotch teased with a wicked grin. "I'm just that good am I? You can't control yourself around me."

Emily laughed bitterly. "Fuck you."

She gasped as Hotch's hand played with her clit and she knew she couldn't hold back any longer. Her body tensed, her fingers dug into his shoulders, her eyes snapped shut, her grip on her boob tightened, and her mouth opened slightly as a long, harsh moan fell from her lips. "Goddamn it!"

Hotch watched in awe as her pussy contracted around him and pleasure ran through her body. He got lost in the blissful sounds she was making and the feeling of her body so perfectly molded to his. Emily gasped as she tried to get her breath back as she came back down fro her high.

Her hooded eyes met Hotch's cocky gaze. Emily rolled her eyes. "Shut up." She hissed even though he hadn't said anything. She got off the desk and pulled him to one of the oversized chairs on the other side of desk. She pushed on his chest lightly for him to sit down but he barely moved. She let out an annoyed sound as she pushed him hard enough to knock him off balance and he sat down in the chair. "Was that really so difficult?" She huffed before straddling him.

Hotch stayed silent as she lined herself up and slowly sunk down on him. "Fuck me." She sighed as she reveled in the feeling of him filling her again. She didn't know how he could be giving her so much pleasure but at the same time annoying her so much like always.

She slowly rode him, making sure to get every inch of him deep inside her. One hand grabbed the arm of the chair to steady herself and the other went to grab her boob again. She twisted her nipple as he hit a sensitive spot, causing her to gasp and look at him.

"You feel so good." Hotch moaned as he stared at the ceiling and held her hips tightly.

"Yeah?" She said in a breathy voice. Hotch nodded. "How good?" She challenged with a smirk and a cocked eyebrow as she kept a steady, euphoric pace.

Hotch's head lowered until he was looking at her again. "Pretty damn good." He moaned, instead of poking fun at her again. He pushed down on her hips to make her grind into him.

Emily's hands slammed onto Hotch's chest, fingers digging into his skin, causing Hotch to moan. She chocked out a gasp as the new wave of pleasure surprised her. "Fuck!" She all but screamed. "Faster." She begged as she grinded on him faster.

Hotch moaned as he felt himself deep in Emily's warm body. He pushed and pulled on her hips as fast as he could. Emily felt tingles travel through her body as she quickly approached another orgasm.

"Again?" Hotch moaned, his cocky grin making another appearance.

Emily's fingers curled deeper into his skin as she looked at him through hooded eyes. "Stop talking." She demanded before she let pleasure take over her body again. Her back arched as her hips continued to rotate on him. Her eyes rolled back as she stared at the ceiling above them and felt herself tighten around Hotch. "Oh god!" She cried as she came for the second time. Her head lowered and she tucked her chin into her body as she felt Hotch get harder inside her. "Fuck." She breathed in a long moan.

Hotch grabbed her hips and started thrusting into her again. Hard and deep thrusts with no rhythm. He knew he wasn't going to last. "Get on the floor." Hotch strained. When she didn't move he growled in frustration and couldn't hold out any longer. He held Emily's hips still as he came deep inside her. She watched as his body tensed and she sighed as she felt him cum over and over.

A string of groans and moans fell from Hotch's mouth as he came down from his high. His heavy breathing matched hers as they both realized what just happened.

Emily got off of Hotch and ran a hand through her hair and leaned back on Hotch's desk. Hotch still hadn't moved. She watched, as the man she still hated so much was seemingly speechless. "Cat got your tongue?" She asked with a smirk.

"Don't flatter yourself." Hotch replied, narrowing his eyes at her. "Why don't ever listen to me?" Emily raised her eyebrow, playing dumb. "I told you to get on the floor!" He said raising his voice slightly.

Emily rolled her eyes and went to pick up her clothes. "I'm on the pill. It doesn't matter." She huffed.

Hotch got up and picked up his boxers and put them on. "You are unbelievable."

They finished getting dressed in a tense silence and it was clear that nothing had changed. She took out a mirror from her purse and looked over her appearance. She wasn't in too rough condition until she looked at her neck and chest and saw her complexion riddled with hickeys. "You motherfucker!"

Hotch wore an evil grin. "I didn't hear any complaints."

"Well you're hearing them now!" Emily said, also raising her voice. "You are infuriating."

"Yeah and so are you." Hotch agreed. They fell into a silence again as they finished trying to be presentable.

"Now what?" Emily asked, a little bit of awkwardness falling over her despite her best effort.

"Well this certainly didn't change anything. You clearly still piss me off more than anyone else. "

"An honor I don't take lightly." Emily quipped.

Hotch didn't feel like fighting again tonight, maybe tomorrow but not tonight. "That's enough. I think it's time to go home."

Emily agreed. "See you tomorrow morning. Sir." She spat as she left his office without another word.

"Good luck covering up those hickeys Prentiss." Hotch yelled as she walked down the catwalk. He watched as she stuck up her middle finger without looking back.

"Eat a dick Hotch!" She yelled over her shoulder before walking through the glass doors and going home. She felt that familiar ball of anger in the pit of her stomach and knew that not a goddamn thing had changed between them, but hey she wasn't complaining.