Okay, I did this for an anonymous kink meme, but seeing how little fanfiction there was here made me sad! I hope no one minds if I post it here as well.
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Grell had been hovering outside of William's office door for about an hour by now. At first he had been able to ignore it. The slight sound of pacing feet, a shuffle of clothing, a small intake of breath. Small annoyances in his quiet work environment. He turned a page over, lifting his pen. Just then, there was a click. Only moving his eyes, he glanced up as the door edged open.
"About time." He said shortly. Grell gave an innocent smile—something he did all too well. His lower lip was already flush from being bitten by his own sharp teeth, and the tops of his cheeks were just as pink. Stepping in, Grell closed the door behind him, where there was another barely audible click. Leaning back against the door, hands behind him, he gazed across the small room to his superior.
"You wanted to see me?"
"What do you think that all of this is?" Was Will's short reply as he swept his hand over the mountain of papers on his desk. Grell's expression was one of 'do you think I'm an idiot?'.
"Paperwork." He stated.
"Who do you think warranted this much work, all by their lonesome?" Will tried again, raising one dark eyebrow. Grell's expression fell, and he bit his full lower lip again.
"Oh... Me." He said, though that light smile was back.
"Don't smile. Come over here." The dark-haired Shinigami chastised, standing as he adjusted his glasses. Grell came forward, not to stand in front of the desk, but right beside his supervisor. "If this was anyone else, Grell, I'd have them stripped of their scythe and rank. Why do you think I don't do that now?"
"Because William loves me?" Grell gave his best smile, which would be innocent if his teeth were not so evident now with those wide-spread lips. Will's eyebrow twitched, and he adjusted his glasses by the side again.
"Grell, I'm trying to reprimand you."
"You punished me enough! That really hurt, you know. After all that awful demon-butler did to me, you had to rough me up too!" The red-headed Shinigami's arms lifted up to twine about Will's shoulders, pulling him down a little as his fingers rubbed the back of the dark-haired one's neck. It felt terribly good, after sifting through those papers all day long.
"You deserved that. And what's this 'awful demon-butler' about? Were you not fawning over him before he got the upper hand?" William countered, though the tension was leaving his body already. No, it hadn't vanished. Grell's lithe body was now pressing against his own, the redhead's lips close to his as they spoke, merely relocating 'tension'.
"Just how long did you watch, Will?" Grell asked with a slight frown. "And anyway, I was just playing with him. Did you think I would be unfaith..." Green eyes widened a little. "William, you were—?"
"Don't say that, it's not true." William rest his hand onto Grell's hip, trying to give the other a gentle push away. The shorter Shinigami stuck close.
"It's true! Will was jealous!" Grell chuckled, leaning in to nuzzle William's neck. He gasped as his hips were pushed back—stopping as they abruptly hit the side of the desk. "Ow! That—!" He stopped in mid-sentence when he saw Will's dark expression, as the older man placed a hand on either side of him. Taking in a sharp breath when the other pressed their hips together, he ignored the slight pain of the desk at his back as he shuddered.
"What do you want me to say, Grell? That I watched you blush and fawn over that strange butler, and that it made me angry? Irritated? And if it were possible, jealous?" William's hips gave a slow, firm grind against Grell's, and he smaller of the two gave a small groan. Grell's hands moved to clasp William's upper arms, clutching at his sleeves. He couldn't possibly tell Will how good he looked with that dangerous expression. He chewed his lower lip and nodded slightly. "Well then, Grell... Would you be prepared for the consequences of making me feel those things?" Both of their breath was becoming shorter with each slow grind that the dark-haired Shinigami gave of their hips.
"Y-yes..." Grell managed to whisper, and then nodded his head for farther emphasis. Something like a whimper issued forth from his throat as if to add a 'very much so!'.
"Very well." Silken lips met already damp and swollen ones as William bent to kiss the redhead. Slick tongues came forth to entwine and tangle, each of them short of breath and panting at each break for air. Will's hands relocated to Grell's waist, while the redhead's moved up to wrap around his superior's neck. Bodies slid and moved against one another's, their clothing an obstacle between them. An accidental slip caused Will's tongue to receive a small cut from one of Grell's deadly teeth, and he broke the kiss swiftly with a hiss.
"Sorry..." Grell whispered, though his tone suggested he was less sorry for the nick than for the kiss being ended. William supposed it had been a while since the two had done this, but he still wasn't willing to receive anymore of those. No more kissing today, then. "Ah..!" With a simple move of his hands, Grell was spun in the opposite direction. He didn't need much encouragement to bend over the desk, and he merely offered vocal encouragement as he felt William's hands on his pants. Fingers splayed over the paperwork that was spread out, careless of their neat and tidy piles. He sighed as he felt them slide down his slender legs, and gasped when he felt his arousal taken into the older man's hand. "Mmn... Williaaam."
"Shhh..." Will coaxed as he slid his left hand up under Grell's shirt. His right had encircled the other's already full arousal, fingertips becoming damp as they felt the tip.
"Ah, but...!" Those deceivingly gentle fingers felt every inch of flesh of his stomach, and slid over each small ridge of his ribs until they reached his nipple. Grell arched upwards, his back touch his superior's chest. "Ah...!"
"Ah-ah, you said you'd face the consequences didn't you? We're in the office, Grell. Mind your manners... and stay quiet." William teased, his smile evident in his voice. The tight ring of his fingers slid down back to the base of Grell's arousal, his little finger rubbing a small circle there. The fingers of his left hand rubbed in the same slow circle, before delivering a light pinch to his nipple. Grell's mouth opened to protest the order of remaining silent, but Will's reprimand was quicker. "Make a sound... and I'll stop." He threatened. Teeth clicked shut, and a high—but quiet whine was heard instead. His body writhed under the dual sensations he was undergoing, tears of frustration on the edges of his closed eyes as he kept his jaw shut tight, least he give in and cry out as loud as he like.
After a while of this, Grell spoke up as quietly as he could manage. "W-Will, nnh! ... If you—ah!—don't... stop...!" He warned simply, fingers now clutching the edge of the desk, as he'd run out of paper to crumple. William relented at last, hand leaving the trembling redhead's body, with only a small whimper of complaint from the other. He opened the top drawer of his desk, retrieving the small bottle of lotion. It wasn't the best for lubricant—expensive too, but they didn't have much of a choice, and it was better than saliva. He coated his fingers in the slippery substance as Grell stepped out of the pants that had gathered at his ankles. The redhead spread his legs invitingly, glancing over his shoulder at he dark-haired Shinigami. His red-framed glasses had slipped half-way down his nose, and his hair clung to his cheeks and forehead, damp with sweat. Those full lips were lush and pink, and William almost wanted to go against his decision and kiss them despite the risk.
Instead he brought his slick fingers up along those creamy thighs, causing Grell to shudder as his green eyes half-closed. A sigh passed those swollen lips as one of them pushed its way inside of him, and Will answered it with one of his own. It really had been a while... The feel of that tight heat on his fingers alone nearly drove him to skip a few steps. Instead he remembered himself, moving the finger around before he added a second. They both moved slowly as they stretched the younger Shinigami's body, causing the redhead to whimper and wriggle as he clung to the desk as if it offered some relief to the necessary teasing. After a third and then a fourth had been added to the job, William decided that he was ready—or that he couldn't wait any longer. Sliding his fingers free, he opened the front of his own pants skillfully with his clean hand, freeing his by now straining erection.
"Remember..." He whispered as he leaned down over the all too ready redhead, lips brushing against his ear as hot breath fell over it. "...Quiet." Just as he finished speaking, he pushed forward into the tight, welcoming body. The both of them emitted low groans through clenched teeth, which lasted until William was fully sheathed. Grell's lips opened so that he could breathe deeply, as Will's own panting tickled the hair by his ear. After only a moment of stillness Grell moved his hips back, giving the other a sign that he was more than ready. William, never one to not meet expectations, complied as he pulled back. The next thrust that he delivered was hard enough to shake the contents of the desk. Pens shook in their holder, and the ink bottle rattled dangerously as it was jolted. Grell's hips, too, met with the harsh wood of the desk, despite the wood biting into his fingers as he held it to prevent that. Luckily the next thrust that was delivered swiftly was enough to steal the breath that Grell had been building to cry out, and he was able to close his mouth in time to instead give a low and desperate groan.
William's clean hand wrapped up in the other's long red hair, tilting his head to the side as his other hand—still slick with lotion—traveled down to re-wrap Grell's temporarily neglected arousal. He stroked the other as he continued his pace, ignoring it even as the ink-well toppled over to cover one paper with its black contents. His tongue came forth to bathe Grell's neck from the edge of his collar up to his ear, his glasses pressed against his temple. He listened to the desk shake and to the papers as they fell. "A-ahh...! Ha, hnnn!" The redhead fought to hold his sounds back, not used to keeping quiet—specially not under such circumstances! Will did not admonish him for his small slips, but still he did his best, unwilling to take the chance that this would end. "Will...!" He gasped, one hand slapping onto the desk for leverage, but slipping on the ink there. "Ah, no... ohh!" The new stain on his perfectly white shirt was forgotten by the next thrust.
"Grell..." The whisper was unexpected, low and deep. The redhead didn't even know if William had realized that he said it. Still, it struck him to the core, and his body reacted accordingly. It could only take so much, after all. Hot white seed spilled over Will's hand that stroked him with each powerful thrust, and he kept his high moan from becoming an outright cry of ecstasy as it would have been otherwise. The dark-haired Shinigami smiled, though he continued to thrust a while longer before his own body was sated. Lips trailed kisses cross Grell's face and neck, a gentle contrast to his passionate thrusts. The redhead began to whimper, his glasses falling from the end of his nose where they had been precariously perched for some time now.
"Williamm... do it... come inside...!" Grell begged, turning his head to the side again. That was all it took for the straight-laced Shinigami to give in as well, as he did just as the other asked, groaning low as he sent his essence deep into the redhead's body.
Half an hour, one stained shirt, many ruined papers, lightly bruised hips, and two muttering Shinigami later, the two were dressed again. While Grell complained about his shirt and the ink that would not come off of his hand, as well as the bruise on his 'delicate' hips, Will complained about the papers that he would need to have re-written so that he could fill them out all over again—and at the fault of the very same person that warranted such work in the first place! Still, the both of them wore much more pleased expression than they had begun with. Just as Grell was set to leave, having at last given a half-hearted apology to his superior, William stopped him by calling his name. He barely turned in time to catch the object thrown his way, and he blinked down at the key questioningly.
"Wait for me at my place." William said stiffly, as he adjusted his glasses. "I'm not quite through with you." Grell smiled as he gave a nod, leaving the office, which was not so tidy as it was before he had entered—as happened to most things, including people, after Grell.