Those fleeting moments, the ones that changed everything, remained eternal.

Sirius leaned back in his chair, swirling a glass of firewhisky between his fingers as he smirked across the dimly lit study. They had been reminiscing about the war—those moments that had shifted everything. And now, it had led them here: to this conversation about that night at Grimmauld Place, the night that had forced Sirius to face his true feelings for Severus.

"Alright then," Sirius drawled, his tone light but with a hint of mischief. "Tell me the truth. That night at Grimmauld Place—what did you really come for?"

Severus arched an eyebrow, his gaze steady. "I told you the truth then. I was concerned about the Mark and needed to check the library."

Sirius scoffed, rolling his eyes. "Oh, come on, Snape. The real reason."

Severus let out a small sigh, his face an unreadable mask. "That was the real reason. I thought Regulus might have looked into it when he had second thoughts." A faint glimmer of amusement crossed his features. "And there was the added benefit of shutting Lupin up."

Sirius' eyes widened in realization, and he couldn't help but chuckle. "So, the second time… your real goal was to search his room."

Severus gave him a small, wry smirk in return. "Indeed."

Sirius tilted his head, intrigued. "Did you find anything useful?"

"Not about the Mark," Severus admitted, swirling his own drink idly. "But that's where I got the preliminary ideas for severing the Horcrux from Potter."

"Regulus. The man proved you can be both brave and brainy." Sirius exhaled slowly, shaking his head with a half-grin. "Funny, isn't it? That was our first argument on the train."

Severus's gaze flickered briefly, the memory of their first encounter on the Hogwarts Express flashing in his mind. Sirius had arrogantly dismissed Slytherins, and Severus had retorted with sharp words about Gryffindor recklessness. It had been the beginning of years of animosity—and now, here they were, talking like old friends. It was strange, how time had changed things.

To Sirius's surprise, Severus gave the slightest nod, acknowledging the sentiment.

Sirius smirked, leaning forward. "Well, you are a living proof yourself. You are the embodiment of the virtues of all Houses—cunning, clever, brave, and loyal. I'm still wondering how the Sorting Hat didn't have a crisis over you."

Severus's lips twitched. "Dumbledore once said something similar," he murmured, voice laced with dry humor. "Though when he said it, it felt more like an insult to the Slytherin House."

Sirius rolled his eyes dramatically. "That's why you'd make a better Headmaster than him."

Severus gave him a flat look, unamused. "Flattery won't secure your position, Professor Black."

Sirius grinned, leaning in with mock seriousness. "That's okay. I only crave tenure in one position." He placed one hand over Severus's chest.

Severus's lips quirked—just slightly—as he caught Sirius's hand, pressing it against his heart. "And that position has already been filled."

Sirius felt warmth spread through him at the rare softness in Severus's gesture. His other hand still cradled his glass, but his mind was elsewhere, turning over the moment, the words unspoken between them. Finally, he gathered the courage to ask, his voice quieter now.

"So… what was the moment for you?"

Severus took a slow breath, and released the hand he's holding. His eyes flickered momentarily toward the fire, as though considering how much to reveal. "When I survived the war," he began, his voice low. "And the place I wanted to return to, was here."

Sirius blinked, startled by the confession. He hadn't expected that, not after everything that had happened. "I… I thought it would have been the night you showed me your Patronus, at the latest," he said, his voice betraying a slight tremor. "That night felt… different. I thought that was the moment for you."

Severus's gaze softened, but there was no humor in it. "No," he said quietly. "That night… was when I decided to let Lily rest in peace. It was when I realized I had to stop holding onto her ghost and start living for something—someone—else."

Sirius's heart caught in his chest. He hadn't expected Severus to say it so plainly, to admit it without the usual shields of sarcasm or sharp deflections. And for a moment, the silence stretched too long, thick with things left unsaid.

His fingers tightened around the glass, something uncertain clawing at his chest. "Wait," he said, his voice quieter now. "Then what was that kiss about? When you promised me a next time?"

Severus remained silent for a long time, his expression unreadable. Then, finally, he spoke, his voice measured but distant, as if recalling something long buried. "My mother used to promise she'd leave my father if it got too bad—next time. Every time." He exhaled, the sound nearly imperceptible. "But next time never came. Until it became the last time—for her."

Sirius inhaled sharply, words failing him.

It wasn't about the promise itself—it was about what promises meant. Severus had never believed in them, not really. And yet, that night, he had given one to Sirius.

Not out of love. Not out of certainty.

Out of a desperate need to believe, just once, that some "next time" could be real.

Sirius swallowed, his throat tight. He didn't know what to say. He wanted to reach for Severus, to touch his hand, to tell him that this was different. But the weight of it, the sheer depth of everything between them, made the words stick in his throat.

So, instead, he did the only thing he knew would not fail him.

He shifted.

The familiar warmth of his fur spread over his skin, the world sharpening into muted scents and sensations. His paws pressed against the floor, his body settling into something simpler, something safer.

Severus, watching the transformation with the faintest of sighs, shook his head and smiled, though it was laced with something deeper—something that neither of them could quite name. He reached out, his fingers brushing gently behind Padfoot's ear, the movement tender in its quiet understanding.

"Before I made my first friend," Severus murmured, his voice soft, "I'd always wanted a dog."

Padfoot let out a small whine, tilting his head slightly as if in agreement, his dark eyes looking up at Severus with an expression that said everything without words. He couldn't find the right response—not as a man, not as Sirius. But as Padfoot, he could offer this small, comforting gesture.

Severus sighed again, his hand lingering for a moment longer, fingers brushing through the soft fur. "You're not the only one who needed someone to come home to," he added quietly, almost to himself, though he knew Padfoot could hear him.

Sirius stayed in his dog form for a moment longer, his eyes locked with Severus's, understanding passing between them in the silence. It was how he knew how to offer comfort, how he could bridge the gaps they never quite knew how to cross in words.

And for them, that was enough.

Notes:

Severus endured a lot throughout the story, including interrogation and torture as a spy, but each time he returned after long absences, he always pulled himself together. Every time we saw him, he seemed unaffected.

So, for him, admitting his vulnerability is worth more than a thousand "I love you"s.

By the way, when Severus said the Patronus confession wasn't the moment he didn't mean it was just about Lily. It was because of Sirius—and his help—that Severus finally chose to let go of her. That moment wasn't about love yet, but it was a commitment—he chose Sirius.

I think their relationship will always be defined by actions and unspoken words. After a lifetime of loneliness and betrayal, they finally found someone loyal who will stay till the end.

Severus's love language is very subtle and can sometimes be easy to misinterpret. If you ever want clarification on his hidden messages or true motives, feel free to ask!

Both the main storyline and the ending explore the characters' inner worlds and growth. To me, this story isn't just about love or relationships—it's an exploration of loneliness, betrayal, courage, and healing, as well as the process of relearning trust after experiencing pain.

This is especially evident in the extra chapter. From their conversations to their silent intimacy, every detail reveals past wounds and present honesty. Their relationship unfolds gradually rather than through a sudden shift. I wanted it to be realistic because, for both Severus and Sirius, love wasn't something they understood from the start—it was something they approached hesitantly, after years of distance and pain, until they finally found understanding in each other.

For Sirius to accept Severus exactly as he is, and for Severus to promise always, albeit silently.

Sorry for the long author's note! I wanted to keep Severus's emotions subtle in the story, but now I have a million things that I don't want to leave unsaid lol

Thank you all for reading! I couldn't have done it without you—or my beta, ChatGPT.
The plot bunnies have been with me since 2017, and I'm so glad I finally saw this story through to the end!