Chapter Text
“You disgusting, slimy little piece of horse shit!”
Black pushed Severus against the wall, hard. They were behind the main building of the school, where the smokers came to hide from the teachers who pretended they didn’t know. The ground was littered with cigarette butts.
“Let me go, you oaf,” Severus grunted.
“I would’ve thought you could slither your way out of here, by your slimy looks.”
“And I would’ve thought you could come up with more diverse ways to insult me by now, but it seems I shouldn’t have expected that much from someone so obviously insecure about his own stupidity.”
Black’s nostrils flared, but he didn’t let Severus win so easily. “Well I’m sorry my insults aren’t up to your standards, your highness. I’ll make sure to take note of that for next time.”
It was a cold morning, and everyone was either in class or sleeping. They were alone outside—Severus didn’t know if he was glad Black’s friends weren’t here to help beat him up or if he was ashamed to realise he couldn't even fight back against one.
“So what is it this time?” Severus asked. “Did I look at your boyfriend the wrong way?”
“You shut your damn mouth,” Black said through gritted teeth.
“Ooh, struck a nerve, have I?” Severus grinned. “Come on, the whole school knows you and Potter are fu—”
“I said shut your damn mouth!”
Black’s hand flew and struck Severus on the side of his face. The blooming pain made tears spring into his eyes, and he ducked his head, hiding behind his hair.
“You know damn well professor Dumbledore only ever writes one letter of recommendation,” Black said.
Ah. So that’s what it was about.
Admittedly, yes, Severus had in parts asked Professor Dumbledore specifically because he knew that’s who Black was gunning for, but he also was one of Severus’s three best options if he wanted a real shot at a scholarship. Professor McGonnagall hated him, so she was out of the picture, and professor Slughorn had been on sick leave this week. So, the old dean it had had to be.
“Just get yours from someone else.”
Severus looked up to find Black had taken a step closer to him. His grey eyes were murderous, his full lips pursed into a thin line, and his usually pale face blotchy red.
“I needed one from him.”
Severus shrugged and tried to reign his smile in. “Well, that’s too bad.”
“You’re a fucking parasite, you know that?”
“Aw, Black, am I ruining your life? You flatter me.”
“How many times do I have to step on you for you to understand you’re nothing more than an insect? Know your fucking place.”
“That would be a lot more believable if you just ignored me, you know? Yet here you are, cornering me while no one’s looking. Real brave of you.”
“Someday you should really learn to just shut your stupid mouth.”
Severus couldn’t help himself. It was always so easy to rile him up. “Or what? You’ll tell your mummy?”
“I don’t need anyone to fight for me.”
A thought hit Severus then. “What did you need the letter for, anyway?” he asked, genuinely confused. “It’s not like you need a scholarship, I bet your parents will pay whatever tuition you want. Aren’t you basically a nepo baby?”
That, for some reason, is what truly sent Black into a blind rage.
“Don’t you dare say another word,” he whispered, pressing his body against Severus, pinning him to the wall. “You don’t know anything.”
His face was even redder than before, the muscle in his jaw twitching in anger. He was breathing hard, just inches from Severus. And between them, something hard Severus could feel against his abdomen.
“Is that…” He couldn’t stop himself from snickering, looking straight at Black even though he had to crane his neck, as the other boy towered over him. “Are you hard right now?”
Black immediately pressed even closer in a movement that Severus guessed was supposed to be threatening but had the main result of making the very obvious bulge in Black’s trousers even more apparent now there was no space left between their bodies.
“Oh my god, you are,” Severus said, damn near cackling. “This is so beyond pathetic.”
“Shut. Your damn. Mouth.” Black was fuming.
Humiliatingly, this is the moment Severus’s dick chose to betray him.
For a few seconds, they were silent. They didn’t move, just staring at each other, taking in the absurd reality that they were both undeniably hard after being seconds away from throwing punches at each other.
And then, Black fucking smiled. “Who did you just call pathetic?”
Severus’s face burned worse than it ever had when he’d been made fun of in front of the entire school. “It’s just… automatic response,” he mumbled, knowing he was only making things worse with that ridiculous excuse.
“Yeah, right. If your nose could be any bigger, it’d grow three inches right now, Pinnochio.”
Severus reached an arm around Black, smacking his hand on his arse and pushing his stomach into Black’s crotch. “I don’t think you’re really in a position to tell me how ugly you think I am, Sirius,” he said. “Your penis seems to be disagreeing with your mouth.”
“First name now, huh? Don’t get ahead of yourself, Snivellus.” Black bent down to murmur the next words directly into Severus’s ear. “At least wait until I’ve made you come.”
“I don’t wa— aaah…” Severus couldn’t finish his sentence, cutting himself off when Black pulled his lobe between his teeth, then bit down along his neck, pushing Severus’s hair out of the way.
“Didn’t I tell you to shut up?” Black said between two bites.
“Someone could see.”
“Don’t be such a damn pussy.”
Black’s hands made their way down from Severus’s neck to his chest, his waist, and started working his trousers open. Severus’s head fell back, resting against the wall, and he closed his eyes, gulping for air. He felt the cold take hold of him the second Black pulled his clothes down, but when he opened his eyes, intent on covering back up, he found himself staring as Black kneeled before him among the cigarette butts.
“What are you doing?” he breathed out.
“What’s it look like?”
And without further ado, Black opened his mouth and licked Severus’s cock from tip to balls. Severus’s entire body shook from the wave of pleasure that hit him. Black looked up at him as he took him into his mouth, just the tip at first, giving small, teasing licks over it.
The cold wind made Severus shiver and he had to bite his lip to stop himself from moaning when Black moved forward, taking more of him into his mouth and circling him with his tongue as he pulled back. He hollowed his cheeks, sucking in a way that made Severus’s knees go weak and his mind go blank, and then, just as quickly as it had started, it stopped.
Black stood up, looked down at Severus’s throbbing cock between them, and chuckled. “Well, who would’ve thought greasy-haired-Snivillus had such a pretty little dick?” He wrapped a warm hand around it, pumping it slowly. Severus gasped. “Who would’ve thought you’d ever let me touch you?”
“Stop talking,” Severus tried to say, but it came out more like a moan.
“Why? I’m giving you compliments for once, you should take them.”
“I don’t want anything from you.”
The statement was somewhat contradicted by the leaking precum at the tip of his cock and the desperate sounds he was now unable to stop himself from making.
Black let go of him, then seized his hips and turned him around, pressing him face to the wall. “Well, I want something from you.”
Severus’s arse clenched in reflex against the cold, and he stood frozen, not knowing how he got here nor how he’d live with himself after, yet determined to see it through. He heard Black pull his trousers down behind him, and then he felt his warm hands back on his hips, holding him still as Black’s cock pressed against the small of his back.
A hand moved over his cheek, fingers digging in, until one brushed over his hole. Severus shivered again and balled his hands into fists. Black took his hand off, then brought it back—the finger was now wet. He circled Severus’s hole a few times before entering, one digit, two digits, then a second finger.
“Fuck!” Severus cried out when Black moved further in. It hurt, but he didn’t want to tell Black that.
“Stay still.”
“Fine.”
Black’s fingers moved more and more easily as Severus forced himself to breathe steadily and unclench his muscles. He closed his eyes, remembering Black’s tongue on his cock, and focused on the pleasure that was slowly building again at the base of him.
“Just fuck me already,” he bit out when Black started to slide a third finger in. “We haven’t got all day.”
“I was just tryna get you ready,” Black answered, and Severus could hear the sneer in his voice. “I’m not exactly small.”
Severus rolled his eyes. “Oh, get over yourse— aaah, fuck,” he moaned, once again interrupting himself.
Black had pulled all his fingers out at once and was now pressing the tip of his cock to Severus’s hole. Severus pressed back impatiently, humming contentedly when Black pushed all of the way in, slowly.
“So fucking tight,” he moaned. “Oh fuck, oh fuck, oh fuck…”
The pressure made Severus nearly delirious. Black hadn’t lied—he was big. Bigger than Severus had ever imagined. (Yes, Severus had sometimes wondered, and then the picture in his mind had been rather appetising, so he’d taken to thinking about it whenever he wanted to get off. It wasn’t a big deal.)
Except now it was real, Black was thrusting in and out of him rapidly, without seeming to care if he hurt Severus at all. It did hurt, the stretch just enough to burn, and Severus was holding back whimpers, but he could take it. He wanted to show Black that he was able to handle it, to handle him. He would take it all without a complaint and prove he could not be broken so easily.
He could hear Black panting and felt his breath on his nape. His movements were a bit erratic, pulling out and pushing back in at a broken rhythm, hands strong on either of Severus’s hips.
“God, Snape, it’s like you were made to be fucked,” he said, shifting them so the angle was just right.
Severus let out a mewl at the next thrust. He felt every brush of Black’s cock inside of him, hitting just right over his bundle of nerves, again and again until Severus saw stars. His pleasure seemed to pulse inside him, from his insides to the tip of his cock, hitting him continuously like relentless waves.
They shifted again, and Black moaned as he thrust once, twice, and stilled, dick spilling inside of Severus.
“Oh, fuck,” he said, panting.
“How eloquent you’ve become,” Severus mocked.
“Shut up.”
“Make me.”
So Black reached around him and took his cock in hand again, stroking him with a firm grip. He let his thumb brush over the head, and Severus came with a loud cry. Everything went black and quiet as he let his orgasm wash over him, pushing everything away that wasn’t right here, right now.
Black waited for another few seconds before letting go of him and pulling out. When Severus turned around, they were both still half naked and catching their breaths.
“That was…” Severus couldn’t find a fitting word, so he trailed off instead.
“Yeah.” Black sighed and ran a hand through his hair. “Unexpected.”
“To say the least.”
They stared at each other, then both put their clothes back on.
“Don’t act like this is awkward,” Black said before Severus could add anything more. “It doesn’t change anything.”
“Right.” Severus nodded. “Obviously.”
“It didn’t mean anything. Just needed to get off, and you were…”
The lie was too big for him to even finish, but Severus didn’t mind. He knew where they stood. And judging by the look Black was giving him now, they would find themselves back here soon enough. It was just a question of finding the right opportunity.
“See you,” Severus said, and he turned and walked away, knowing those grey eyes were following him.