Work Text:
It wasn’t right to be attracted to someone so young. Oh, the boy was of age. But Sirius still felt old and dirty looking at him, wanting the young redhead.
Merlin, Molly would murder him if she knew he was ogling any of her sons. She wouldn’t care that Charlie was an adult or that he had proven himself capable both with his job and on numerous Order missions. She would be as angry as one of Charlie’s mother dragons. It was ridiculous, but an apt comparison.
The real trouble, as far as Sirius was concerned, was that the boy kept ogling right back. And flirting shamelessly. At first Sirius had thought he was imagining things. But then big brother Bill had commented one day, casual as anything, “He fancies you, you know.”
And Sirius’ mind hadn’t left the gutter since.
So when Charlie cornered him in the back of the library at Grimmauld Place, Sirius’ cock immediately responded faster than his brain. That solid body and those muscular arms blocked his way out and Sirius found the young man watching him from under hooded eyes.
“We should stop playing games,” Charlie said.
“We should,” Sirius agreed, waiting for Charlie’s answering smile before continuing. “A young thing like you shouldn’t be chasing after an old dog like me.”
Charlie barked a laugh. “You’re only 36, hardly ancient,” he scoffed.
“But too old for you,” Sirius countered.
Shaking his head and looking slightly irritated, Charlie said, “I’m not naive or sheltered, much as Mum tries. I tame dragons, for Merlin’s sake.”
Sirius shook his head now, trying to push past Charlie. “I’m not one of your dragons. I can’t be tamed.”
“Are you sure?” Charlie asked. “Or are you just afraid I could do it?”
Merlin be damned. How had the boy learned to push his buttons like that? Sirius growled as he turned his head to look into those ocean blue eyes. But before he could argue, Charlie’s lips crashed into his. Sirius was startled by the barely tethered aggression he felt in the young man as not only their tongues, but their magic began to tangle and twist.
Sirius couldn’t remember the last time he had felt anything this good. The young man was ravaging his mouth, not giving him an opportunity to try to take control. As much as he didn’t want to admit it, that might have been because Sirius didn’t want to be the one calling the shots.
Charlie’s body pressed against his, pushing him back against a bookshelf. Sirius wasn’t sure that the younger man even had to whisper words for his magic to respond and bind Sirius’ wrists above his head. That, however, was a bit too much like Azkaban. He couldn’t tell Charlie in words, but he responded nonetheless, releasing his wrists and murmuring an apology. “I’m sorry. I didn’t think,” in a soothing voice that he must use quite effectively on the dragons. Sirius felt calmed.
“Can you keep your wrists down by your sides for me?” Charlie asked instead.
Having that control, the ability to disobey if he wished, made all the difference for Sirius. His cock hardened further, desperate to have that muscular young body even closer. “Yes,” he whined. He didn’t call the boy Sir. He wasn’t that easily tamed.
Charlie’s powerful body brushed against him, his firm, large cock rubbing Sirius’ own through their trousers. His hands tilted Sirius’ head to the side, exposing his neck. Very gently, Charlie brushed Sirius long, dark hair out of the way and began sucking his way down from Sirius’ ear to his pulse point, leaving marks as he went.
“Your Mum—” Sirius protested.
“Won’t know who did this to you, so we’re safe from her as long as you don’t mark me. You’re mine to be marked anyway,” he informed Sirius.
“And not the other way around?” Sirius questioned, though he knew the answer.
Charlie gave him a look that made Sirius’ cock throb and he dropped his eyes to the ground like the good little sub he secretly was. Or maybe not so secretly. Had someone told Charlie he would be this easy? Bloody Remus. It had to be him.
“Or maybe I could just tell,” Charlie commented, making Sirius realize he had been babbling. Sirius flushed and looked to the ground again, but Charlie caught him under the chin and tipped his face up. “Believe me, I don’t mind.”
Sirius gasped as Charlie’s other hand snuck to the front of Sirius’ trousers, palming his erection and stimulating him. “You’re wearing too many clothes,” Charlie declared.
“We’re in the library,” Sirius pointed out. He hated to sound scandalized, but anyone could walk in.
“I put up wards,” Charlie assured him. “We’re safe and no one will hear.”
Feeling grateful for the foresight, Sirius relaxed into the younger man. Charlie grinned at him and caught his lips again. As he drove Sirius up the wall with his tongue, Charlie was unbuckling both their trousers and getting rid of them. Soon the two of them were grinding against one another in nothing but pants.
Sirius felt like a teenager, like he might come in his pants if this process didn’t speed up. It had been far too long for him. Pulling away from the kiss, he tried to warn Charlie. “I won’t—”
“I’ve got you,” Charlie cut him off. “Come when you need to. We’ll have plenty of other opportunities to work on stamina — if you want them.”
“Merlin,” Sirius groaned as Charlie’s hand slipped inside Sirius’ pants and the first touch of skin on skin nearly sent him over the edge. “Yes,” he hissed, both answering Charlie’s backhanded question and begging for more.
The moment Charlie whispered a lubrication spell, Sirius began moaning and whimpering. He didn’t want to give up this feeling for anything, wanted it to last, but he knew he couldn’t.
Gasping, Sirius begged, “Let me feel your cock.”
“Be my guest,” Charlie invited, “Your hands are free.”
Wasting no time, Sirius pushed at Charlie’s pants, moving them down until his enormous cock was out of them, the weight of it resting in Sirius’ hand. Thank Merlin, Charlie whispered the lubrication spell again because Sirius’ mind was too shot at the moment to remember it. He could barely string thoughts together he was so overwhelmed by Charlie’s touch and the feel of a hard cock in his hand.
Sirius stroked Charlie, happy when the younger man began to pant as well. It was that sound combined with Charlie’s talented fingers rubbing over the head of his cock that brought Sirius to his end. He grunted and groaned as he came, his hand still on Charlie’s cock, unable to maintain motion while his whole body reeled from its release.
He was shaking and needed to sit, but he leaned heavily on Charlie instead, trying to catch his breath. Charlie milked Sirius’ cock with his hand, wringing every last bit of release from his body before scourgifying the mess. “Don’t want to leave any on the books,” he said with a laugh. He gave Sirius a quizzical look then. “Would you like to be on your knees or is this too much for today?”
Charlie’s voice was gentle again, commanding in a way meant to calm. This was a choice, to be based on Sirius’ capabilities after so long without, but Merlin did he ever want to please Charlie. “On my knees,” Sirius replied.
Charlie’s eyebrows rose and he smirked. “You’re dying to taste my cock, aren’t you?”
“I can’t wait another day,” Sirius admitted, lowering himself to the floor. He quickly pushed Charlie’s pants the rest of the way down his legs, tossing them to the side before taking his cock in hand.
Charlie’s breath stuttered as Sirius ran his thumb through the pre-cum on Charlie’s tip, then putting his tongue to it. Charlie was well lubricated already, with the tasteless lube produced by the spell, so Sirius was able to easily slide his hand up and down Charlie’s cock as he experimented with the tip in his mouth. He ran his tongue around it, exploring what exact movements made Charlie respond.
Surprised that Charlie wasn’t commanding more, he saw that the young man was watching him and seemed almost to read his thoughts. “I’ve wanted you since I met you, Sirius. I know this is your first time since Azkaban and I’m not messing it up for you. Take your time.”
How the boy knew that, Sirius wasn’t sure, but then considering how shaky and helpless he was to Charlie’s ministrations, maybe it was just too obvious. Either way, Sirius was glad he wasn’t expected to be at the top of his game yet.
As much as Charlie had told him to take his time, though, Sirius felt impatient. He wanted to suck on this cock, large though it was, and gag around it as Charlie fucked his throat. Logically, he knew he wasn’t ready for that, but he couldn’t wait until he was.
For now, Sirius focused on taking in as much of Charlie as he could manage, letting his fist do the work on the rest of his length. Charlie groaned and growled for him, then cried out when Sirius finally began to suck, hollowing out his cheeks and running the flat of his tongue along the bottom of Charlie’s thick cock.
“Nnnnnngh,” Charlie moaned. “Just like that, Sirius. Merlin your mouth feels so good.”
Sirius was surprised to feel the throbbing of the cock in his mouth changing, already clearing close to the edge. “I’ve been wanting this. I won’t hold back long,” Charlie said, explaining the situation even as he moaned. Sirius could feel the younger man’s hips shaking, as though he were holding back from thrusting like he wanted to. Merlin, Sirius couldn’t wait for that day.
Sucking harder, he reached a hand down to toy with Charlie’s balls, startling a moan from him. “I’m gonna come, Sirius,” he managed just before his cock started to spurt down Sirius’ throat. He sucked down the salty substance as though it were the most delicious thing he had ever had in his mouth, continuing to suck until Charlie’s moans ended and his giant cock was finally limp.
“Merlin you’re good at that,” Charlie managed to say, pulling himself away from Sirius and swooping down for a kiss. He seemed to have no problem with tasting himself on Sirius’ mouth. This young man was a perfect match for all the things Sirius loved. He just wasn’t sure…
“Don’t overthink it,” Charlie commanded. “Remember I said you’re mine — to mark and to use. Unless you don’t want to be.”
“Oh, I want to be,” Sirius agreed before hesitating, “But I’m not sure it’s right.”
“It’s only wrong if we let it be,” Charlie argued. “I’m of age, and I’m the one in charge.” His voice was filled with absolute confidence.
Sirius breathed out, loving that he could let himself agree. “Okay,” he managed to say between kisses. He was well and truly tamed.