Fitz jumped when his bunk door flew open, a red faced Jemma storming in and slamming the door behind her as she leaned against the wall, letting out an aggravated huff. He raised an eyebrow, setting his computer aside on the bedside table and sitting up as he gave her his full attention, waiting for her to speak. When a full two minutes passed with not a single word being uttered, Fitz sighed, crossing his legs as he bit the bullet.

"Jemma, what's going on?" He questioned, motioning for her to come sit down. Instead, Jemma let out a growl, pacing the few feet of space between his desk and his bed, running a hand over her forehead and into her hair.

"I'm just… I'm so sick of Skye always…" Jemma rambled, breaking off the end of her sentence to stare angrily at the ceiling.

"Skye always…?" Fitz prompted, raising his hand to urge her to continue.

"Always insinuating that there's something between you and me. I don't understand why she cannot just accept that we are simply a heterosexual set of best friends. I mean honestly, the girl seems to think we're constantly slipping off to have sex in the lab or something. It's just ridiculous," Jemma ranted, throwing her hands up into the air. She missed the look that crossed Fitz's face, the hurt quickly shuttered away behind his eyes as a blush coloured his cheeks.

"Yeah... ridiculous," he agreed, scrubbing at the back of his neck. "I mean, there has to be some way to make her stop?"

"Well denying it is getting us nowhere," she groused, finally sinking down onto the edge of the mattress next to him.

"Well what would you propose as an alternative? Pretend to have sex until she gets sick of it?" The words were said as a joke, heart aching at her rejection of the idea of them ever being together.

"Yes!" Jemma exclaimed, instantly perking up. Fitz nearly choked on his own saliva at her enthusiastic response, his eyes going wide as he took in her expression. He had never thought she would consent to something so crass. In all their time at the Academy, SciOps and now on the Bus they had rarely spoken about anything sexual, Fitz preferring to be ignorant of any sexual conduct that Jemma participated in. His own exploits had been few and far between and something he had never shared with her either.

"Wait...what?" Fitz stammered, blinking up at her with confusion scrawled across his features. "You're... you're not serious Jemma."

"I am. It would be perfect. Skye is always on about us being a couple and denial has gotten us nowhere so why not affirm it? She'll get tired of it quickly because she won't be able to tease us about some hidden attraction or whatnot anymore. As soon as she leaves us along about it, we can go back to normal. It's just a bit of pretend Fitz." Jemma rushed, a beaming smile lighting up her face as she bounded off the bed and over to his desk, grabbing a blank piece of paper which she hastily began writing on it.

"But... I was... just kidding," Fitz mumbled to himself, trying to swallow around the panicked lump in his throat as he watched Jemma spiral in to preparation mode, her hand moving swiftly over the paper.

"We should be able to start tomorrow if things are quiet. Let her see us stumbling into here together at night. Maybe if we're all watching a movie there could be a pointed look before we both leave? Yes, that sounds like a solid plan," Jemma was muttering, nodding to herself. "Fitz, would you prefer to pretend to engage in oral sex or vaginal intercourse?"

XxX

Fitz nearly choked on his sip of water when Jemma got up from the sofa the next evening while they were watching a movie with Skye, an exaggerated yawn being released as she stretched her arms above her head, throwing him a pointed glance as she batted her eyelashes. He tried not to wince at her pointed look followed by the way she swung her hips as she left the common room, throwing a comment about being tired over her shoulder as she went.

He knew she was trying to be seductive in her motions, but he was too busy rushing through the reality of what was about to happen in a few minutes. He cringed, ducking his head down in hopes to draw his attention away from her retreating backside long enough to keep his hands from shaking. He didn't understand why she had to wear such tight trousers anyway – she hadn't been doing that before.

"I... I think I might turn in as well. Long day. Lots of... lab work," Fitz stuttered, getting to his feet without meeting Skye's gaze. She gave a nod in reply before picking at the last of the popcorn, her attention focused on the last minutes of the film.

"Fine, but I'm not telling you the ending," Skye called as he stumbled out of the common area and towards his bunk. He was barely at the door when Jemma's hand shot out, grabbing him by the edge of his shirt and yanking him into the room, not even registering his slight grunt at the force of the movement. As soon as the door was closed, Jemma letting out a fake giggle, she released him, crossing the tiny space to sit down on the floor by the bedside table and picking up a medical journal. He vaguely registered that she had commandeered one of his cardigans, the dark wool swamping her tiny frame.

"How much longer is there left of the film?" she questioned, squirming around slightly until she was comfortable, looking up at Fitz as he wandered over to the bed, sitting down on the mattress, his posture rigid.

"Ten... fifteen minutes?" he offered.

"Good, we won't have to worry about faking foreplay then," Jemma mused, tucking a strand of hair behind her ear. Fitz swallowed hard, nodding, as he lay down on the bed, burying his face in the pillow as he felt his cheeks heat at the thought of fooling around with Jemma – even if it was only pretend.

"Where... uh, where are we starting then?" he questioned, voice muffled by the synthetic filling of the pillow.

"Well, I would expect that seeing as you choose to forgo oral sex, we should be about to instigate or having just started penetrative intercourse," she replied, flipping the page of her journal. "That way there will be a significant amount of auditory feedback that we can utilise to make Skye think we're a couple."

"Okay," Fitz agreed, wincing before he pushed himself up to his elbows. "I was... obviously we need to imitate movement as well so I'll... uh, knock the headboard against the wall a bit, yeah?" Jemma beamed up at him for a moment before her eyes went back to the pages.

"That sounds brilliant," she said, voice quiet as she listened for the sound of Skye's bunk opening. The minute she heard the door click, she let out a moan, voice taking on a breathy quality. "Oh Fitz."

The sound of her moaning his name made his own breathing hitch, his heart pounding as he blushed again, blood struggling to decide which direction to travel as his cheeks flamed, arousal suddenly pooling in his belly. He wished he had never agreed to this. That he had the strength to say no to Jemma, even though he knew it was a pipe dream.

"Mmm," he groaned in reply, not trusting his voice for anything more than that. He closed his eyes, rocking the bed slightly to create a soft creaking. No matter what he tried to do to block out the images his mind was conjuring, he couldn't stop them when he heard Jemma whimper. Immediately, he could picture her beneath him, her legs wrapped around his hips as he gently thrust in and out of her, their hands intertwined on the pillows. "God, Jemma," he blurted, cock filling rapidly as he pressed his pelvis to the mattress.

"Oh," the gasp she released sounded almost real, throwing more images into the forefront of his mind. Would she want to go fast or slow? Would she be okay with him being slightly dominant? Would she prefer missionary? To be on top? For him to take her from behind? He grunted, inadvertently thrusting into the bedding and knocking the headboard into the wall as he imagined pressing himself to her back, his fingers tight on her hips. He threw a quick glance down at Jemma to find her still reading. "Oh, harder, please, harder." The words drove him to realise he had stopped moving for a moment, stopped breathing even, before he started to rhythmically push the frame of the bed into the wall.

Jemma, for her part, was fighting to keep her cheeks from turning red, her lungs tight and vision going blurry from the arousal that was suddenly rushing through her at the sound of Fitz's pained groans and the images running through her mind. His noises rattled something loose in her, blood pounding in her ears as she felt her body respond, the heat between her thighs growing slick with arousal. She covertly moved around until she could press the heel of her socked foot into the apex of her thighs, rocking herself against it to try and relieve the throbbing in her clit.

"God, look at you, fuck." His rough voice tore through her already fragile control over her mind, a vision of the two of them suddenly rocketing to the forefront of her mind. He was poised above her, between her thighs, both of her legs pushed back until her knees rested on his shoulders, blue eyes trailing over every inch of her as he moved inside her. Her entire body was suddenly alight with arousal, her knickers dampening even further as she tried to keep her breathing in check all while nearly dizzy with desire for the man a mere two feet away.

Fitz prayed Jemma wouldn't look up, that she wouldn't choose that moment to get up from the floor next to the bed where she was sitting flipping through a medical journal and turn to see how he was no longer simply knocking the headboard into the wall, but was instead rutting against the mattress. Somewhere in the last few moments he had gone from just imagining Jemma beneath him to wanting nothing more than to find release with her.

"Oh, yes, there, right there," Jemma moaned, another page being turned as she let out a groan following her words, the hand that wasn't holding the magazine slapping down onto the nightstand, the noise echoing through the room. Glancing towards her, he noticed that her cheeks were flushed but her eyes never strayed from the paper, only closing as she let out the next falsified noise of ecstasy. "Let's wrap it up for tonight," she hissed, barely loud enough for him to hear before she started to let out exaggerated pants and huffs, increasing in volume every few seconds. "Oh, oh Fitz, I'm going to-" She cut herself off with a high pitched gasp, turning it into a moan a second later.

Hearing her say his name in such a way was too much. His hips hitched more frantically against the bed, his hands gripping the headboard with ferocity as he felt his body reacting without his full consent.

"Oh fuck, Jemma," he growled, eyes squeezing shut as release hit him, his cock twitching frantically as he came, soaking the fabric of his trousers. He felt dizzy with it, panting harshly as he buried his face in the duvet, grunting through the last few aftershocks.

A minute passed before he was able to unclench his fingers, releasing the wooden headboard and lowering his hand down to rest on the pillow, his heart still pounding beneath his ribs as he tried to steady his breathing and not let Jemma know that he had… and in his trousers no less. He flushed crimson at the thought of her getting up, expecting that they would watch a film or talk and him needing to duck into the bathroom to clean himself up. What if he had leaked onto the bed too?

'God, she'll never be able to look at me in the face again when she realises that this meant… that I… that hearing her, like that, even if it was fake for her was… God, it will fuel my fantasies of her for years…'

Amidst his internal panic, Jemma stood up, stretching her arms above her head, her back cracking slightly from having been sitting on the floor for the last half an hour before she wandered into Fitz' bathroom, the tap clicking on a second later. She returned a few minute later, her clothes deliberately rumpled and hair dampened at the roots with water. She had even done something to the skin on her neck, a red mark showing just above her collar. She smirked, shaking her head.

"Tired?" She asked, noticing how Fitz still lay prone on the bed, his left hand clutching at the pillow as he tried not to squirm under her scrutiny and at the feeling of his own release cooling against him.

"Mmm," he replied, not trusting his voice not to crack or reveal how wrecked he actually felt.

"I should go," Jemma commented, the statement their agreed upon end of their fake tryst. "I'll see you in the morning?"

"Mmhm," Fitz answered, trying not to pay attention to the feeling in his stomach as Jemma raised the back of her own hand to her lips, creating a kissing sound against her own skin before heading for the door, slipping out into the hall with only a split second's glance in his direction. Once he was sure she was gone, Fitz pushed himself up, grimacing at the feeling but sighing in relief when he noticed the duvet had survived unscathed save for being rumpled where he had been thrusting against it. He staggered into the bathroom, stripping before climbing into the shower, making sure the water was only lukewarm at best.

He hoped Jemma didn't want to do that again. He wasn't sure he could survive the embarrassment if he came in his pants again and she noticed. He also wasn't sure if he would ever be able to look at her again without imagining her moaning his name.

XxX

Jemma made back to her bunk in a matter of seconds, both immensely pleased that she didn't run into Skye or anyone else, while also being aggravated that her preparation of looking sex rumpled had been for naught. Her thoughts vanished almost as soon as her door was locked however, her pupils still blown wide from arousal as she frantically tugged her belt out of the loops, unzipping her jeans and shoving them down slightly. She hoped Fitz hadn't noticed the state she was in.

Biting back a whimper she shoved her hand into her panties, not bothering to tease herself like she normally would, but rather immediately shoving two fingers into herself, the heel of her palm grinding against her clit as she fucked herself with. She vaguely registered how her panties were completely soaked against her knuckles, but she was too glad for the way she was able to quickly bring herself close to the brink.

She hadn't thought about how faking sex with Fitz would actually affect her. Hadn't realised how turned on she would get at the sounds he would make. At the way her name would sound with his accent between moans and grunts. She wondered if Fitz has noticed how turned on she was. Had he seen the way she had been trying to subtly grind her clit against the heel of the foot she had curled beneath her? Had he been able to smell the arousal on her?

'Oh fuck, Jemma.'

The way he had moaned her name reverberated through her mind, a soft groan slipping from her as she shattered against her own fingers, muscles clenching tight rhythmically where she tried to maintain her pace of aborted thrusts, unable to keep her hand between her legs for more than a moment before she had to yank it from her knickers, grabbing at the wall to keep from collapsing to the floor as the last dregs of orgasm washed through her.

A few moments passed before she managed to stagger to the bed, shoving her jeans and panties off before crawling beneath the covers naked from the waist down. It was only as sleep started to pull her under that she realised two things. The first was that she was still wearing Fitz's pilfered cardigan, the soft wool giving off the scent of his cologne and something that was purely him. The second was that they were going to have to pretend to have sex again if they wanted to convince Skye that they were, indeed, a couple.

"Damnit."