Work Text:
Harry Potter was nineteen years old and freshly out of the war when he found the photo album.
Grimmauld Place was filled with secrets and distractions and it had been the perfect distraction for him while he hid from paparazzi and stray Death Eaters and people with questions.
.
So he let Luna be Grimmauld's secret keeper, knowing she'd never let it slip where it was. And if someone gave her veritasirum, she'd probably manage to talk so cryptically that they'd give up.
And so life went on like this for six months. Harry had mostly rested for the first month. Tired, exhausted from battling Voldemort as a teenager, he slept in Sirius's bed and breathed in what he assumed was the smell of his godfather and not mould somewhere that he'd have to find.
He'd quote to his mental image of a therapist---his biggest mistake was definitely letting Sirius die. His mental therapist, looking alarmingly like a mix between Hermione and McGonagall in Remus's suit, would say something like "and how does that make you feel, Harry?" and he'd cry into Sirius's bed and and she'd nod like she expected that.
After about a month of lying in his own depression and avoiding his friends, Harry found the photo album.
It was an accident.
He tripped one day on a baseboard and noticed that it was loose. He cursed to himself. A new thing to fix! Then he looked closer and realized what was inside.
It something like Sirius's stash. A few bottles of alcohol, from the 70s. Probably bought brand new. A shoebox of trinkets.
But more importantly, a photo album.
He opened it like it was the holy grail itself.
----
Sirius smiling with Remus.
Sirius and James and Lily and Peter having a water balloon fight.
Sirius in a skirt, legs bare, him pulling it up a little further and giving the camera a wink, and Harry quickly shut the book.
"Alright, this is definitely private." Harry said, licking his lips. "But...its not like he's here to say anything, right?" He asked the air for assurance.
He opened the album again. There were mostly normal photos, with Sirius having fun with his friends. But some of them....
Harry reached inside his pants.
SIrius winked back at him, sliding the skirt up further.
----
The time travel was a compete accident as many things in his life were.
Hermione had wanted to give him closure. As an intern to the Minister of Magic, she managed to somehow get access to the Veil.
"You need to say your goodbyes, properly."
Neither of them realized the guard was a Voldemort supporter.
Harry fell into the veil, pushed into it by a person whose name he didn't even know.
What a fitting end.
----
He woke up.
He had landed in the middle of the Great Hall, he realized as he looked up at the ceiling. He felt concussed. He looked over where a hand had been placed on his shoulder.
Blue, twinkling eyes stared back. Eyes that shouldn't exist anymore.
He opened his mouth, and then passed out again from the shock of seeing Dumbledore alive and well, younger even.
---
Time travel.
What a phenomenon. What a rare phenomenon that had been documented thoroughly thank to the existence of time turners----but yeah, no one knew the Veil did that. Yes, he'd have to deal with healers and scholars researching him, but otherwise, it'd be mostly kept a secret. Just a rough landing with apparition, Dumbledore would say. A freak accident with a new transfer student.
The newly named Harry Evans looked for Sirius Black as he was sorted as a seventh year.
Sirius was the one person who wasn't looking at him, as if feeling guilty.
He had time-travelled too. Harry knew it.
---
Sorted into Slytherin of all places while Harry was distracted, Harry tried so hard to talk to Sirius.
He tried walking up to the Gryffindor table, but Sirius had rushed out of the Great Hall claiming a stomachache. Each, fucking, time.
He tried knocking on the portrait, but no one would let him in.
He was starting to get angry, truthfully.
---
A stupefy to the back did the trick.
---
"I'm so sorry, Harry." Sirius said the moment he was able to open his mouth. Harry was standing over the no longer bound Sirius in the Screaming Shack. "I tried, y'know. I tried to get back, but there's nothing about the Veil in the library and---"
As he rambled, Harry noted that he looked....healthy.
He tried to reconcile the image of his deprived adult godfather, with the downright sexual younger adult in the photos, with the teenager in front of him.
His cheeks were soft, like he was able to eat regularly. He wasn't muscular, but he was an interesting mix between slender but toned. There were no eyebags under his eyes.
"It's fine, Sirius."
"And I----huh?" Sirius blinked in surprise.
It really was fine. He grabbed Sirius and hugged him like his life depended on it. Sirius was frozen in his arms, only to hug him back with just as much ferocity. Sirius's tears against his shoulder.
He needed this.
----
They "became" friends.
It was a shock to the rest of Gryffindor. Sirius Black, friends with a Slytherin that wasn't his brother, or a cousin that he had an exception for? What on earth had happened?
"Is the end of the world coming or something?" James had laughed, and Sirius had laughed, and Harry felt pain at the sight of his younger father being so happy and oblivious.
Sirius kicked him under the table, a warning look---he knew what he was thinking.
He laughed too.
"Y"know how it is. Sometimes you just need to have good company at the end of the world." He slung an arm back around Sirius. Remus quirked an eyebrow at them. He looked knowing.
"Or maybe you're another one of his conquests." Peter muttered. Remus punched him in the shoulder. They both froze, then let go of each other like their skin burned.
"Peter, I'll kill you." Sirius hissed.
"Eh?" James blinked, surprised. "You never usually get upset at comments like that...is it true?"
"No! No, no, no, there's nothing going on between me and Harry!" He looked at Harry, desperately. "Right, Harry?"
Harry, thinking of the photo album, poked at his potatoes and got up. "I think I need to go."
"Harry?"
---
Hogsmaede had a club. Harry never knew this. He wondered if it closed down after it became a popular destination for students, or if the war interfered.
He watched Sirius dancing with a man and a woman at the same time. They were so close to him. He was wearing a skirt, again. He hadn't seen it in person before.
He vaguely guessed Sirius wasn't exactly your regular man, but he didn't know that he wore skirts in public and let men grind their crotches up against his backside in club.
Harry clutched his drink and chugged it down. He didn't have liquid luck, but he had liquid courage in this moment. He descended into the crowd and the crowd let him in.
"Harry?" Sirius was tipsy. He wasn't drunk---he had seen Sirius at his worst before, one day in Grimmauld place. But he grinned at Harry as if seeing his godson once again. "Dance with me, Harry! You never been here, right? It'll be fun!"
"That's the plan." Harry smiled lopsidedly, grabbing his hand, and looking at him not as a godfather---but as a man. He pulled Sirius to his chest. He could feel his heart beat racing and wondered if Sirius felt it too.
He wanted nothing more than for Sirius to realize his intentions.
"Lets dance, Sirius." He whispered into his neck, pressing his lips against his collar bone, and Sirius shivered.
----
"You have to be good to Sirius or we'll destroy you."
Harry looked at James Potter who was glaring at Harry, his arms crossed. He looked like he was trying so hard to be Hermione and he didn't even know who Hermione was, that Harry couldn't help but laugh.
"I'm serious!" James snapped. "I'm not going to say Slytherins are all evil bastards, or anything cliche like that, but Sirius is our friend. It's..." He trailed off. "It's obvious. Somethings going on between you two and it's not some sex friend thing, and I want you to be good to him."
This was a conversation James should've been having with someone else, in another timeline, about Harry. Not to Harry about his godfather.
He nodded feeling dumbfounded, despite knowing his own actions was what lead to this.
What even was his life?
---
Sirius initiated it. It took until Christmas to really get on his nerves, to make Sirius snap. At James suggestion, he had begun offering him gifts. Flowers. Sirius loved to be spoiled by his lovers, apparently, and he was right.
A month and five days into Harry appearing in the past, Sirius was pressed up against Harry's backside with him on the ground.
"I shouldn't," He muttered into Harry's ear. They were in the Room of Requirements and somehow, even though they went with the plan to destroy the Hocrux....the Room of Requirement thought of something else.
It even prepared condoms.
Harry looked up into Sirius's mad eyes. He was too far gone, his hard-on pressed up against Harry's leg.
"We shouldn't." Harry agreed. He tugged on Sirius's pants behind him, humming to himself. "It'd be wrong."
"But it's not like anyone knows." Sirius leaned forward; lips pressed against his godson turned friend turned lover.
---
The descent into madness was a long steady process. Harry didn't know what triggered it. Maybe it was his parents death, giving him some issues. Maybe it was Sirius in a skirt, stripping for the camera. Maybe it was everything and anything all at once.
But kneeling before Sirius in that moment felt right and if that was madness, he'd accept it into his life willingly.
Sirius grabbed him by the hair, pushing his cock further into Harry's throat. They were the only ones in the world. The only ones who knew the full extent of what they were doing.
"Harry, Harry," He gasped out loud. "Harry, what are you doing to me?"
"Sucking your cock well, hopefully." Sirius laughed and he laughed and then Sirius came into his throat, and Harry felt like this was the right place to be. Here, in the past, being fucked against a floor in the Room of Requirement by Sirius Black.