I feel the strange need to apologize for this. But I can't help it. The moment I start writing smut for them it always gets out of hand. I blame my partner in crime for it. We have way too many dirty conversations that are constantly inspiring my muse and I can't deny that I have a very, very, VERY dirty mind. Consider yourself warned! This is rated M for a reason!

I hope you enjoy!

Disclaimer: I don't own anything!

Chapter 1

Was she insane?

Stop it!

Her breath quickened as she looked at him out of the corner of her eye. Since the moment Traci had told her this morning that Sam had broken up with Marlo she couldn't stop thinking about him and now he was walking beside her, talking to her about the case but she didn't hear a word, she couldn't think clearly anymore.

Jesus Christ!

His ass in this jeans. The black shirt hugging his muscles. The holster on his right hip. It must be the hormones. Oh my God! She was horny as hell! And she wanted him! Right here, right now!

"McNally?"

His voice snapped her out of her thoughts and she gulped hard, trying to focus her gaze on his face but it just dropped down to his mid-section and she bit her tongue to suppress the moan that wanted to escape her as she imagined him pushing into her, her mouth around him, sucking him in.

"McNally!" Sam gritted out through clenched teeth, the words barely audible. "What are you doing?"

She couldn't answer, she couldn't form any words as she looked up into his face, her heart beating wildly in her chest as she met his dark gaze. She wanted to run her hands through his hair, she wanted to trail her fingers over his scruff.

"God damn it!" Sam hissed. "Don't look at me like that!"

She licked her lips. Once. Twice. Her eyes flickered back down his stomach, her heart thudding painfully against her ribcage as she saw him growing, straining against the denim.

"I need you, Sam!" Andy breathed, clenching her hands into fists beside her body, pressing her eyes shut. "Now!"

"Fuck!" Sam cursed and Andy's eyes snapped open, a small smile curving up her lips as she saw the hardly restrained hunger in his eyes.

"Exactly!"

"You can't be serious, Andy." Sam groaned. "We are in the middle of the station!"

She leaned closer, looking around if anyone was watching them and shifting slightly she brushed her hand over his erection as she stood up on her tiptoes and whispered into his ear. "Fuck me, Sam! Now! Please, just fuck me!"

He inhaled a sharp breath and pushed her back, grabbing her arm and yanking her towards the interrogation rooms, shoving her into the first observation room they reached.

"Andy, we can't ..." Sam started to speak but Andy was pushing him back against the door, her hand wandering down his stomach. "Geez!"

She pressed her hand hard against his arousal, her fingers closing around him, a soft sigh escaping her as she felt him growing even more under her hand. She couldn't wait any longer. She needed to see him. She needed to feel his naked skin and her fingers unlooped his belt, removing his holster and batch and throwing them on the table, her fingers were shaking as she reached for the zipper and pulled it down, dropping down on her knees in front of him as she pushed his jeans and boxer briefs down.

"Andy, what are you ..." The rest of the sentence got lost in a surprised groan as she closed her mouth around him.

And she didn't start slow and careful. No. She sucked him in as hard as she could, his tip hitting the back of her throat and his fingers tightened in her hair. He knew he should stop her but her hand closed around him, pumping him hard and his hips started to move as he stared down at her, watching his cock slipping in and out of her mouth. Every time she reached the tip her tongue flicked over it and he growled deep in his throat, his hips jerking forward involuntarily.

She was almost driving him insane as her mouth closed more tightly around him and he expected to explode any second as her mouth was suddenly gone, replaced by her hand as she stood up, her lust filled eyes boring into his as she stroked him, her thumb brushing over the tip every so often.

"Oh my God, McNally."

He gripped her belt and yanked her towards him, his mouth crashing down on hers, his tongue delving in as his fingers started to work at her belt.

"Get your damn boots off!" Sam growled into her mouth and Andy balanced on one foot, her fingers opening her shoe laces, almost ripping them apart and the moment she had slipped both boots off his hands were shoving her pants down impatiently.

She was still fully clothed from the waist upwards, she was even still wearing her vest and a small voice in his head shouted at him that this was all wrong. That it wasn't supposed to happen like that. He couldn't sleep with her like that. He couldn't just take her in the observation room. But the voice got lost in the haze that clouded his brain. All he could think about was burying himself in her.

He was still wearing his boots, his jeans was wrapped around his ankles but he didn't care and dropped down on his knees in front of her, lifting one of her legs up and positioning it on the chair and groaning out loud he shot forward, his tongue darting out and licking over her, her taste exploding in his mouth and he grabbed her ass, pushing his tongue into her, getting even more aroused by the tangy taste on his tongue. It had been so long since he last tasted her and she tasted so fucking good. He was sucking and licking her, spurred on by the rotating of her hips, the tightening of her fingers in his hair.

And then he suddenly stood up, plunging two fingers into her a second later, silencing her cries with his mouth, letting her taste herself on him and she dug her fingers in his shoulders, her body arching into his as he pumped his fingers in and out of her and the moment he felt her walls start to flutter around his fingers, he withdrew them, her silent protest turning into a strangled moan as he pulled her leg down and swirled her around. His fingers closed around her thigh and he repositioned her leg on the chair, stepping directly behind her.

She could feel him brushing over her ass as he pressed one hand between her shoulder blades and pushed her down, a ball of liquid heat shooting straight to her core. She was dripping wet and so hot for him. She needed him so desperately in her that she had to bite her tongue to not beg him to just fuck her already. But she didn't need to beg anyway, his hands closed around her shoulders and he pulled her backwards in the same moment he thrusted deep into her, burying himself completely in her.

Leaning her head on her crossed hands, she drew her bottom lip into her mouth, digging her teeth into the flesh as he pounded merciless into her. For a brief second she wondered if they'd even locked the door but the thought went up in smoke as his hand slipped around her waist, his fingers finding her clit and she groaned loudly, not able to keep the moans in any longer as he rubbed over the bundle of nerves.

She could hear their flesh slapping together, could hear his low groans as he slammed into her again and again. Her walls were already protesting, her muscles began to quiver, the position they were in anything else than comfortable. A whimper slipped over her lips as he shifted slightly behind her, changing the angle of his thrusts and hitting her even deeper. She felt already sore, but she didn't want him to stop, she was in a delirium of slight pain and unbearable lust and she couldn't believe the words that came out of her mouth.

"God, Sam! Harder! Fuck me harder!"

His thrusts faltered for a moment as he heard her command, his fingers stopping abruptly and holding her breath she waited for his next move, afraid he would come to his senses and would just stop. But then she felt him bend his knees, pulling out of her excruciatingly slowly, his fingers still motionless on her clit. The breath she had been holding whooshed out of her as he slammed into her, her head banging against the wall by the force of his thrust and he complied her wish, his thrusts coming harder and faster, his fingers working over her clit frantically and her mouth opened to let out the cry that ripped through her throat but then she could feel his fingers slipping into her mouth and she sucked them in.

She was a trembling mess, wondering how she was able to still stand upright as he fucked her as hard as he could. Closing her eyes, she imagined the picture they must give with her still wearing her vest and Sam with his pants around his ankles, slamming his cock into her over and over again.

This was insane. Where did this insane need to fuck each other senseless even come from?

"God, Andy! You are so fucking tight!"

His hoarse spoken words pushed her over the edge, the orgasm crashing down on her and she bit down on his fingers to avoid screaming out loud, her hips jerking backwards as he kept pounding into her, her walls clenching around him and his hand went to her hip, his fingers burning hot against her skin as he grabbed her hard, keeping her steady as he chased his own release, his thrusts getting more and more erratic until he stiffened, a loud groan rumbling out of his throat as he emptied himself in her.

They were both panting heavily, his arm coming around her waist and pulling her upright. She was almost not able to put her leg down on the ground again, her muscles feeling like jelly. But when he slipped out of her she wanted nothing more than to tell him he should stay, to give her a few more minutes of feeling him inside her. But he was already stepping back and she turned around, reaching for her clothes, suddenly slightly embarrassed about their intense encounter in the middle of the work day. They didn't say a word when they put their clothes back on and Andy already expected him to just leave without saying a word as he suddenly turned around to her.

"Jesus Christ, Andy!" Sam said, rubbing a hand over his face, avoiding her eyes. "I'm so sorry!"

"For what?" Andy asked, not able to keep the annoyance out of her voice. "For giving me exactly what I wanted? What I needed?"

"I shouldn't have ..."

"I loved it, Sam. I wanted you to fuck me." Pulling his head down, she kissed him hard, still tasting herself on him and she felt her stomach clenching as a new wave of desire rushed through her.

God, she wanted him again. She could hardly move without feeling the soreness everywhere but she already yearned for him to be back in her.

"I have to go." Andy whispered against his lips. "Before I'll rip your pants of and let you take me again."

Turning around she walked to the door and without looking back she slipped out, the door closing behind her and Sam just stood there, unable to move.

"What the hell just happened?"

He couldn't remember the last time he had lost control like that. But he couldn't help it. The moment she had stared at him with the hunger blazing out of her eyes he had been lost. All his common sense had fled through the window, leaving only pure passion behind.

They didn't even talk. What was he supposed to do now? Were they back together? Would they give their relationship another shot?

The only thing that was crystal clear was the fact that he already wanted her again and licking his lips absentmindedly her taste filled his mouth and he groaned out loud as he felt his cock jerk.

"Jesus Christ, woman! You are going to be the death of me!"

Okay, that was that. And since I had way too much fun writing this ... this story is going to have a few more chapters. :-)

Oh and I completely forgot ... for everyone who is interested. This gifset was the inspiration for this story. Go on my tumblr (headoverhook dot tumblr dot com) and copy/paste the following adress: /post/62494638869

I have to admit I was tipsy when I first saw that gifset and you don't want to know the conversation I had with my partner in crime about this gifset. But I'm sure you can imagine what we were talking about. :-)