Top Harry Drabble: Harry/Sirius Black

AN: One of my biggest beefs with the movies was that they didn't cast age appropriate versions of Remus and Sirius. They should have been in their early 30's, no offense to Gary Oldman and David Thewlis.

I'm with the popular internet fancast of Ben Barnes for young, book canon Sirius Black and that's who I picture in this fic.


"Ugh. I hated Aunt Marge then and I still hate her now."

Sirius paused in the shadows as he looked at his godson. Harry James Potter. He had grown so much over the past 13 years and Sirius… hadn't seen anything of him. But he looked good and healthy and alive, baggy pants notwithstanding. Sirius turned around, tail tucked between his hind legs, and was about to lope off, find an alley to disapparate when Harry spoke again.

"Padfoot, I know you're there," Harry whispered, turning around and meeting his eyes. The lightning bolt scar showed vivid and red on Harry's forehead but his eyes… Harry's eyes were bright and narrowed in thought, focused intently on Sirius.

Sirius twitched, wagged his tail once, hoping to pass it off as something a regular dog would do. He had things he needed to do, like find the rat bastard that had turned Lily and James into Voldemort and kill him. He needed-

"Sirius. I know where Wormtail is," Harry offered, standing up and taking a step towards him.

Sirius blinked and froze, peering up into Harry's green eyes and struggling to differentiate between James and Harry. Wondered how Harry knew it was him, much less Padfoot. Maybe he didn't.

"You're thinner than I remember," Harry continued idly, crouching before him and offering a hand. "How long has it been since you've had a full meal, cold water and a good night's sleep?"

Sirius swallowed on a suddenly dry throat. Harry's voice was low, quiet and he sounded… old at the same time, like… Thinner than he remembered? How could Harry have remembered something from 12 years ago?

"Come on. Let's get out of here," Harry remarked, reaching out to curl his fingers into Sirius' fur. "It's good to see you."

Sirius stared at Harry and tilted his head in confusion, even as Harry pulled something out of his pocket. It was… a dog collar and leash and Sirius whined.

"Gotta keep up appearances, Padfoot," Harry explained wryly, holding out the collar. "Besides, it's got a charm on it to disguise you. Can't have Remus or anyone else recognizing you right now."

Sirius continued to stare at Harry before letting out a loud sigh and bent his neck. Harry slipped on the collar before cautiously buckling it and standing up.

"I'll explain later, Sirius," Harry offered, shrugging and grinning idly. "I've got plans. Don't worry."

Plans?

"And you're not going after Wormtail right now anyway."


"Alright. You can shift back now," Harry remarked, as he closed the door behind him, slipping off the collar and leash a minute later. "Fudge is gone. I suppose I should figure out what to do with him too. He really was a shitty minister."

Sirius blinked and then transformed back after days spent as a dog. He stretched and cracked his back, stretching his arms up high and then bending at the waist. He finally stood up straight and stared at his godson, meeting Harry's eyes curiously.

There was so much… fond affection in those green eyes and Sirius didn't know… what to do with it. Harry was looking at him openly with love and he… was just standing here, in prison clothes, thin and confused as fuck.

"...Harry?"

"Yeah, Sirius?"

"You know me?"

Harry dipped his head in a nod and Sirius stared at him.

"How…" Sirius broke out into a coughing fit and Harry walked over to the edge of the room they were in, to grab one of the glasses. Sirius had watched as Harry had asked for a full meal from the housekeeper, right after Fudge had left, and hadn't started to eat or drink before they were the only two people in the room.

Harry came back over with a glass of water and held it out to him, looking at it pointedly. "Slow sips."

A noise left Sirius' throat and he immediately grasped it, brought it to his mouth and drank greedily.

"I came back for you, Sirius Black," Harry offered quietly, walking over to sit on the bed. "Came back to my third year."

Sirius blinked and stared at Harry, at his 13 year old godson. "What do you mean… you came back? And for… me?"

"You died in my fifth year," Harry explained, his eyes closing briefly and reopening. "I was never… the same afterward. I missed you too much."

Sirius opened his mouth and then closed it. "You…"

"Yes, I time traveled."

"Bullshit," Sirius whispered, his heart thumping loudly in his chest. "You're lying."

Harry snorted, laying his hands on his lap and curling his fingers over his right hand. "I must never tell lies. You're a Marauder, Sirius. We have our ways."

Sirius grinned faintly. "I solemnly swear that I am up to no good."

"Yes."

"How… old are you really?" Sirius questioned, looking Harry over and trying to see if he could see any hint of an adult in his godson's body. There were no unnecessary movements, no idle fixations of a teenager that he could see. No sign of impatience. Just a calm, mostly collected man looking at him like Sirius hung the moon.

Sirius swallowed at the sight and drew his hands together nervously, feeling more bare than he had been in Azkaban.

"I am… old," Harry answered, shrugging. "That's not important."

"You're using magic though and you're underage."

"I'm not exactly using my wand now," Harry returned, his lips curling into a grin. "Sirius… it's good to see you."

Sirius stared at Harry and let out a deep breath. "But why… did you come back for me?"

"Albus Dumbledore stuck me with the Dursleys," Harry explained idly, laying back on the bed and holding up a hand. "You were family and the one adult I could rely on to tell me the truth. You were the only one to see through to me. Not just the Boy Who Lived."

"He stuck you with the Dursleys? Shit. He knew they were abusive! Harry, he didn't have the right! I was…"

Harry propped himself up with his arms and looked Sirius right in the eyes, a little hint of… something in his eyes. Sirius wasn't too sure what he was seeing but it looked an awful lot like possessiveness. A shiver went down his spine at the look and he turned away, looking out the window. "You were in Azkaban prison with no trial."

Sirius shuddered and glanced over to the steaming food still right behind them.

"Go ahead. Eat. There should be a bathtub in the bathroom," Harry said, gesturing to the other door in the room. "Clean yourself up and get some sleep. If you need it, I've got a few vials of dreamless sleep in my trunk."

Sirius swayed on the spot, memories trying to break through the door and he swallowed. "I think I'll need it."

"Take one then and don't worry about safety. I've already warded the room," Harry remarked, laying back down on the bed and throwing his arm over his eyes. "Ugh, time travel is unnecessarily exhausting."

Sirius laughed on a dry throat and walked over to sit down by the table.


"No. No… Not… Get off. No!"

Harry flinched and woke up, glancing over to where Sirius was lying, on the floor. They were quiet, muttered words of fear, quiet enough that he wouldn't have heard them had he not been awake.

Sirius thrashed about on the floor, struggling against the blanket covering him and eventually kicking it off. Harry winced again and slipped down onto the floor, rolling his eyes at the memory of Sirius refusing the bed. Though… if he had been in Azkaban prison for the past 13 years, he probably would have preferred the floor too.

"Sirius," Harry whispered, shuffling over to his godfather's side and putting a gentle hand on his closest shoulder. "It's just a dream."

Sirius continued to whine low in his throat and Harry took a deep breath before slipping a hand into Sirius' hair, now clean and shiny after a bath. "You're safe, Sirius. You're free. It's just a dream."

Harry slowly carded his fingers through Sirius' hair, tracing his knuckles lightly over the man's cheek. Sirius was definitely younger than he remembered but it had been a while since his fifth year or… would be a while, he supposed. Sirius Black was 34 years old but he had looked much older when they had met in his first life.

Spending 13 years in Azkaban would do that for someone.

The whimpers bleeding from Sirius' throat slowly quieted and faded away after a few minutes. Harry stared down at Sirius as the man's breathing evened out again and then pulled the blanket back over the man, slipping back up onto the bed.


"Awww, where'd you get the dog from, Harry?" Hermione questioned, as she knelt down at Padfoot's side and held out a hand in offer. "He's pretty. What's his name?"

Harry's lips twitched up into an amused smile as Padfoot booped his nose to Hermione's palm. Padfoot now looked like a golden retriever, all blond fur and clean. Thin but clean. No fleas, no dried blood matted into his coat, no extra long nails. Padfoot's ribs stood out and Sirius still flinched at every other noise but he was alive.

"He was a stray I found on the street this summer," Harry answered, watching as Ron came down the hall too. "I know people don't usually bring dogs with them to Hogwarts but… I was hoping to make an exception for this one. The Dursleys would have treated him awfully and… I named him Padfoot."

Padfoot huffed and Harry's lips twitched up into a smile. The charm on Padfoot's collar was strong but not noticeable, strong enough to hide Sirius' real form but not strong enough that people… Dumbledore or Remus… would realize. "It's what I think… I remember having a dog named Padfoot before… my parents died."

Hermione's eyes softened. "I haven't heard of any student bringing in a dog but there are worse companion animals. A dragon for instance."

"That was one time for Hagrid," Harry retorted, casually, his heart aching as flashes of memory went through his mind. It had been a while since he could tease and play with his friends this way, a long time, and he had missed it. "One time. Besides, it's better than a snake."

Hermione and Ron's eyes bugged out and Harry grinned, rolling his own eyes. "Guys, I didn't bring a snake with me. That's something that the Slytherins would do."

Sure, he had bought a snake when he had grown older but now… it was fun fucking with people.

"I don't think the professors would mind," Ron said. "The house elves could take care of him while we're in class. Or Hagrid could."


The moment Harry, Ron and Hermione stopped in front of the last empty train car, he froze for just a second before sighing. The three of them glanced inside to see the bundled up Remus Lupin next to the window and Harry closed his eyes at the sight. Lupin hadn't said much about the 13 years he had spent between James and Lily dying and coming to Hogwarts but he didn't look like they had been easy.

Hermione sighed and then gestured inside. "We'll have to take this one. It's the only unoccupied one."

Harry waited a moment for Ron and Hermione to go in ahead of him and then glanced down at the dog at his feet. The dog that still looked like a golden retriever. Padfoot glanced up at him and whined, his eyes going to Lupin inside.

"I know. I'll take care of him too," Harry offered quietly, reaching his hand down to ruffle Padfoot's fur. "He still thinks you did it though."

Padfoot whined quietly again and leaned against his leg.

"Come on," Harry said, gesturing inside. "The charm will hold. He won't know it's you."

"Harry?"

"Just a minute."

Padfoot whined as they walked in and Remus stayed asleep, tugging his coat further around himself. Harry reached down to stroke over Padfoot's back, trailing his fingers over to give a small pull on his collar. Padfoot leaned into his fingers and lay down on the floor of the train car.

Ron and Hermione were already chatting away, with Ron pondering who the professor was.

"RJ Lupin, Ronald," Hermione remarked, crossing her arms.

"How'd you know?" Ron asked, looking between Hermione and Harry curiously.

Hermione pointed to the luggage above them, to the nametag on it, and Ron blushed.

Harry smiled at them and pulled out a book from his own suitcase before putting it above them on the luggage rack. Hermione grinned at him and nodded, pulling out the Daily prophet and reading it over.

Ron reached into his coat pocket and drew out… Scabbers. Padfoot broke out into a growl and Harry tugged him up and close, putting his hand around his muzzle and turning him to look at him.

"Padfoot, later," Harry muttered, meeting Sirius' grey eyes. "Later, alright?"

Remus moved around on his seat and went back to sleep, making Harry breathe a sigh of relief. Remus may have heard them but Harry didn't particularly want to get into the fake origin story of how he had gotten a stray dog and named it for Padfoot just yet.

Padfoot whined, his warm muzzle in Harry's hand, and then deflated. Harry released him, his eyes on Wormtail as the rat curled up in Ron's hand. His charm was good enough to fool even a Death Eater and Harry inwardly smirked.

Ron shuffled back on the seat, pulling Scabbers away from the dog. "Are you sure your dog is trained? I already had to keep Scabbers away from Crookshanks."

"It wasn't Crookshanks who tried to eat your rat," Hermione retorted.

Ron frowned and turned to look at Harry, raising an eyebrow. "So what did my dad talk to you about?"

"He told me about Sirius Black," Harry said, shrugging as if the object of their conversation was not just lying on the floor with them. "Apparently, he was the one who…"

He got up and closed the train car door and then sat back down. "Sirius Black was the one who told Voldemort where my parents lived."

Ron sucked in a strangled breath and exchanged a look with Hermione, who had gone still.

"You mean the Sirius Black who escaped from prison?" Hermione whispered, her eyes wide. "He spent 13 years in Azkaban prison for that. He would have gone mad in there."

Padfoot whined and Harry curled his fingers into the dog's fur, stroking over his sides. "Yes. I do mean that Sirius Black."

"Why do you think he's escaped from prison now?" Ron asked, looking between Harry and Hermione. "Why now? I mean… He just broke Azkaban's record. No one's escaped from there before."

Padfoot huffed out the doggy equivalent of a laugh and Harry's lips curled into a grin.

"I don't know but your dad did… warn me," Harry offered, hesitating and clenching his fingers like he remembered doing in his first life. "He told Voldemort about my parents. Arthur thinks he'll… come after me."

Hermione blanched. Ron paled even more.

"You think… he'll try to finish the job?" Ron questioned faintly.

"Maybe," Harry said, tilting his head. "Or at least that's what your dad thinks."

Light drops of rain hit the train windows as they traveled through the countryside. It was silent for a few minutes and Harry kept his fingers curled into Padfoot's fur, enjoying the warmth that radiated from the dog.

"Blimey, what a way to start the year," Ron finally spoke.

Harry laughed and Hermione let out a strangled sound.


"I need to go use the bathroom," Harry remarked, standing up and peering at Hermione and Ron and then finally to Lupin. "I'll be right back."

Ron nodded to him and ran his fingers over Scabbers' back again. Harry barely withheld a scowl and then gestured to Padfoot, seeing his godfather stand up and walk over to his side.

"Come on. I don't want you going after Scabbers, alright?"

Padfoot huffed and let out a quiet growl but stayed by his side as they walked out into the train aisle.

"We're going to the Slytherin train car," Harry remarked quietly, looking out the window to the increasingly beautiful landscape around them. The rain was coming down even harder than it had been when they had started and fog was swirling around the train itself.

Padfoot paused in his walk as he looked up at Harry, staring at him like Harry had grown a second head.

"It's… part of my plans," Harry answered the unasked question. "And… you should probably stay with me, given that there will be dementors arriving in five minutes."

Padfoot froze as the fur on his back stood up, as his tail instantly moved to between his hind legs. It looked odd on a golden retriever but then again, Padfoot was well within his rights to be stiff as a door now.

"Padfoot, you're safe," Harry muttered as they walked, passing students who nodded to him and blinked at the dog by his side. "I won't let them hurt you again. I promise. I'm a fair hand with the patronus charm. You'll see."

Sirius stared up at him and Harry ran his fingers through the fur on Sirius' head, scratching at his ears. "Trust me. You'll be fine. Besides, it'll be fun."

Sirius blinked at him and Harry snorted.

"Come on. Lupin taught it to me in my third year," Harry offered, as they began to walk again. "Stay quiet and follow me."

They walked through the train cars and all the way to the one at the front, where all the Slytherins congregated on the train. The moment they strode through the doors, the students that sat in the front stopped talking and stared at him, their eyes narrowing. Harry nodded to them and surveyed the train car, seeing Draco, Pansy, Blaise, Theodore Nott and all the others.

He looked around for an empty seat and spotted one, a few seats in front of where Draco's gang was, and sat down, pulling Padfoot close to him. It was silent in the car and every single Slytherin student was staring at him and the dog now, their expressions ranging from disbelief to disgust. Draco was staring at him with outright hostility and Harry was pretty sure there were a few people going for their wands.

"What the fuck are you doing, Potter?" Draco questioned, his eyes narrowed and suspicious.

Harry nodded to him and leaned back against his seat idly, keeping an eye on the windows. The windows which were icing up. The skies had gone darker around them and cold slipped inside, making Harry shiver slightly. Padfoot jumped up onto the empty seat next to him and shuffled into him, almost ending up on his lap.

Harry pressed a kiss to Sirius' head and met the man's wide grey eyes. "It's alright. You're safe here."

"What's going on?" Pansy asked, her voice high.

"I don't know," Blaise said, his hand on his wand now.

"Potter, are you doing something?" Draco questioned, standing up. Crabbe and Goyle stood up too, drawing their wands.

Padfoot whined and Draco's gaze was drawn to the dog.

Harry gently moved Padfoot over and stood up, calmly drawing his holly wand. "I'm just sitting here or I was. I'm not doing anything, Draco."

Draco stiffened, tilting his head in confusion at Harry's use of his first name. The windows iced up even more and Harry turned to look behind him, feeling the dark presence of the dementor even before he could see it. Padfoot growled and trembled on the seat, low whimpers bleeding from his throat again.

"If you mean to hex us..." Draco started, his voice trailing off and ending on a high note as the dementor floated towards them.

Harry and Padfoot were in the center of the train car and Harry watched as the creature floated past a few Slytherins before pausing. The students who it passed went pale and shivered, backing up more than a few steps. And then the dementor stopped, turning its cloaked hood Padfoot's way.

Harry stepped in front of his godfather and moved out into the train aisle, standing in front of Draco and his friends. He stared at the hooded figure, hearing the eerie howl of the dementor and then wove his wand. "Expecto Patronum!"

Prongs leapt from his wand and charged, antlers bowed down to collide with the hooded creature. The patronus light flooded the train car and he could hear yelps from behind him, a loud growl from Padfoot. Light and warmth rose and encased the car, throwing the dementor out. Prongs collided with one of the creatures and collected it on its' antlers, running out of the car and throwing the dementor out.

The light of his patronus overflowed from the train car they were in to the others, with Harry feeding power into it enough that some of the Slytherins could feel it. Draco's eyes widened and Blaise's narrowed.

Harry closed his eyes and inhaled deeply, extending his power outward to make sure no dementors were left. The fog curled back and the windows de-iced, letting in warmth again. Sounds came back and the darkness he had felt slowly vanished. He opened his eyes slowly to see Padfoot staring at him in awe, his eyes wide.

Every single Slytherin, from the first years to the seventh years, was staring at him with wide eyes. Harry turned to meet Draco's eyes and nodded to him, raising an eyebrow.

"Draco, we need to talk," Harry offered, gesturing for Padfoot to come to him. He quietly turned around and led Padfoot out of the train car, heading to one of the empty compartments they had passed.


Sirius stared up at Harry as his godson closed the compartment door behind them, his eyes wide and his heart beating like he had just run a mile. He watched as Harry seemed to grow several inches, aging before his eyes, growing into a man of 30 years old. His shoulders grew broader, his legs lengthened, and his whole body matured. The whole process took a minute or two and by the end, he watched as Harry slipped off his glasses.

"Harry."

"Yeah, Sirius?"

"That was…"

"Yeah, I know," Harry remarked, meeting his eyes easily. He was only slightly breathing hard and Sirius stared some more, remembering their first night together and hearing Harry's voice during the night. Remembered feeling Harry's fingers comb through his hair.

"That was fun to watch," Sirius started, lifting his shoulders in a small shrug. He grinned as he looked in the direction of the train car that held the Slytherins. "Why did we do that again?"

"We need to get them on our side," Harry explained idly, walking over to sit down on one of the seats and leaning his head against the train wall. His eyes closed and Sirius took a step towards him, bumping their knees together. He knew Harry would have already warded the compartment even without telling him, knew without a doubt that Harry would keep him safe.

Harry's eyes opened lazily, as if he hadn't just blown the few dementors off the train with a patronus charm, and watched as Sirius slid onto his lap. Harry reached out and slid his fingers into Sirius' waist, curling into his hips and held him. Harry raised an eyebrow and Sirius groaned, leaning in halfway, to meet Harry's lips.

One of Harry's hands moved up his sides, tickling his ribs, and Sirius moaned, melting into the touches. Heat sparked and a strangled whine left his throat as he felt Harry's hand cup his neck, running hot, teasing circles into his skin.

The kiss started out warm and light, just a soft touch of lips to lips and Harry drew away first, meeting his eyes. "Are you sure? I'm going to protect you whether or not we do this, you know."

"I know. You're a true Marauder," Sirius remarked, feeling his cock stir within his slacks. He grinned at Harry's smirk and rolled his hips, bucking into the man in front of him. Harry groaned and tightened his fingers, swallowing up a moan with a wet, hot kiss.

"Fuck," Harry muttered, licking into his mouth and thrusting in, getting one of his hands under Sirius' pants and curling around his cock to stroke him. "I missed you but I didn't… Sirius, you're my..."

"No, no, that's for future Sirius and Harry to think about," Sirius croaked out, melting into Harry's hands and arms, arching into his fingers for more. "I want…"

"You want touch, huh?" Harry asked, nearly petting him, one hand at his neck and one on his cock and heat roiled through him. "Shhhh, Padfoot. Shhhh. I'll get us both off."

He whined at the name and bucked into Harry's fingers, moaning as Harry nipped at his mouth. His nerves lit up with touch, with warmth and pleasure and no pain.

"I didn't know you'd be this loud," Harry muttered, stroking him faster now. His hand left Sirius' neck and he whimpered at the loss only for Harry to rub over a nipple, rubbing the cloth over it and Sirius groaned, trembling with need and want and… Harry's breath tickled his neck as he licked a path up his bare neck, digging his other hand into his sides. "You're close, aren't you, Sirius?"

"Like it when you call me Padfoot," Sirius whispered, arching into him again.

"Hmm?" Harry pressed a kiss to Sirius' throat and swallowed up another whine as he drew him into a kiss. "Padfoot?"

Sirius let out a strangled whine as Harry smiled, running his fingers over his cock and squeezing.

"Come for me then," Harry said, pulling him closer, enough so that Sirius could feel Harry's hard cock through his clothing. "You're safe. You're free. I want to see you come. Padfoot, now."

Sirius whined and pleasure ran through him, making him see stars behind his eyes. His toes curled and he would have wobbled, would have fallen off Harry's lap had it not been for his arms around him.

"Yeah, that's it," Harry whispered, pressing a kiss to his forehead. Sirius groaned and slumped into him, feeling Harry run soothing circles into his back. "I love you."