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Finals week in Hogwarts is eternally brimmed with panicked students frequenting an already packed library, exchanging hastily scribbled notes through the halls and it was consequently stressful for everyone; well, almost everyone but Sirius Black.
Sirius Black who has now taken a seat right across from Remus Lupin who’s got a heavy book propped open on one of the library tables with his parchments spread out around him leaving him with a dull yet consistent headache. He had just finished revisiting one of the chapters for Transfiguration when Sirius had joined him, a playful smirk on his face.
Remus has taken one glance at him before he breathed out an exhausted sigh, "what is it this time?"
Sirius crossed his arms over his chest and gave him a lazy smile, "whatever do you mean, Moony?"
"I know that face, Black," Remus mumbled, flipping to the next page and scanning the words that might end up being the death of him.
Sirius grinned, leaning forward and resting his elbows on the table. He propped his chin against his hands and watched Remus read for a second.
The silence barely lasted a minute before Remus felt a warm foot slide up against his calf and back down resulting in Remus' groan. His eyes found Sirius' across the table again, he asked, "shouldn't you be studying?"
Pushing a hand through his hair, Sirius fell back into his chair, a smirk lingering against his lips again, "maybe."
"Well, why aren't you?" Remus rolled his eyes but didn't move his leg away as Sirius' foot continued it's mischief travelling up and down his leg under the table.
"I've been slaving away to boredom after Prongie left me for Evans and Wormy decided to "study" with some Huffie." Sirius replied, his eyes never leaving Remus’ face – Remus who wasn't looking at him anymore, his eyes scanning the content of his book – "and I've missed my moony, haven't I?"
Remus scoffed.
Sirius' eyes narrowed, the sodding feeling of neglect and jealousy lit aflame under his skin when he couldn't get the attention he sought. He watched Remus for a few seconds before an idea formed in his head and he grinned widely, moving his foot to the inside of Remus' calf, trailing it up further until it reached the inside of his thighs causing Remus to sit up abruptly, his eyes landing on Sirius.
"What in Merlin's beard are you doing?" Remus hissed but Sirius' foot remained between his thighs.
"What in Merlin's beard are you on about?" Sirius replied, an innocent smile forming onto his face. Remus glared as if challenging Sirius, though due to his lack of rest, Remus should've known not to do such a thing as Sirius' foot etched forward and before he knew it, heat spread though his belly and chest.
Remus' eyes widened, while on the other hand, Sirius remaining calm, watching as he leaned further down in his seat, his toes now kneading at the front of Remus' pants with determination.
"Sirius," Remus managed to wheeze, "what-"
As if on cue, Sirius traced Remus' whole growing length starting from the top and ending at the bottom leaving Remus gaping at him.
"What's the matter, Moony?" Sirius asked, voice ever so low and seductive.
Remus exhaled a shaky breath feeling his body grow hot and his face flush, "Sirius, don’t."
Sirius raised an eyebrow as he once again traced Remus' now bulging length through his pants, "I haven’t the faintest what you’re on about, Moons. You’re looking a little peaky, feeling all right?"
Remus didn't get to reply as Sirius presses the ball of his foot down resulting in Remus' breath hitching.
"It seems to me that you're enjoying it, Moony. Do you really want me to stop?" Sirius murmured.
Remus closed his eyes for a second. He couldn't believe he was about to do this… in the library of all places! He glanced around finding everyone in their own world before his eyes snapped back to Sirius who had the biggest smug look on his face.
Taking a deep breath, Remus experimentally moved his hips forward, brushing his aching bulge against Sirius's foot making a shiver rush down his spine.
Sirius smirked, his tone playful, "oh, Moony!"
"Shut up," Remus hissed as his hands gripped the arms of his chair and he thrusted forward without hesitation now, determined to chase after his orgasm.
Sirius bit his bottom lip watching Remus try and control his facial features but failing as his mouth fell open into a silent moan every time he brushed his length against Sirius' foot.
Remus whimpered when Sirius suddenly started applying pressure every time Remus thrust forward.
"Bloody hell, Moony," Sirius breathes out feeling his pants grow tight, "if you could see yourself."
Remus bit his lip, and leaned forward against the table trying to hide his face only for Sirius to withdraw his foot making him whimper in shock, "no," Sirius says, "I want to see you."
Driven by pleasure, Remus nodded quickly making Sirius rest his foot back on the chair and Remus didn't waste any time in brushing up against it again.
Remus' thrusts were getting sloppy and more erratic, his breathing not any better and Sirius couldn't help himself as he snatched a book off the table and balanced it on his thighs before palming himself through his pants.
"Fuck, Sirius," Remus whined, his face scrunched up as he grabbed Sirius' foot not even bothering in hiding it anymore as he thrust against it.
Sirius wasn't any better, his movement frantic as he watched. His orgasm building up.
"I'm-" Remus moaned softly, leaning his head back as he thrust up one last time and shuddered visibly. Sirius couldn't help himself then as he spilled into his pants. Remus fell limp into his chair, eyes glazed and head spinning.
Sirius sat back up after a second or two, moving to place the book back onto the table and grabbing his wand flicking it once for a cleaning spell over the both of them and Remus whimpered at the sensitivity.
He looked down, his eyes finding Sirius, "you're a fucking prat."
Sirius grinned lazily, "So I've been told."