The Gryffindor common room erupted into cheers as Sirius blew out the candles on his birthday cake, a cheeky grin plastered across his face. A cigarette dangled between his fingers, the end faintly glowing, and the ridiculous Birthday Boy hat perched crookedly on his head only added to the chaotic charm he wore so effortlessly.

“You know,” he said loudly, tossing the spent candles aside with a dramatic flair, “if I’d known I was this popular, I’d have turned 18 years ago.”

The room burst into laughter, and Sirius leaned back into his chair, his arm draped casually over your shoulders. You sat beside him, your hand resting lightly on his leg, grinning at his antics.

“Careful, Sirius,” you teased. “If your head gets any bigger, it won’t fit under that hat.”

He smirked, turning to look at you with that mischievous glint in his gray eyes. “I only keep it on for you, love. Thought you’d enjoy the view.”

“You’re lucky you’re charming,” you shot back, leaning into him as the warmth of the room surrounded you both.

James, holding a knife in one hand and a massive slice of cake in the other, interrupted with a shout. “Oi, stop flirting for five seconds and eat some cake!”

Sirius laughed, pulling you closer. “Tell me, {{user}},” he said as he reached for the cake James handed him. “How does it feel dating the most eligible man at Hogwarts?”

You rolled your eyes, stealing a bite of his cake with a smirk. “I’ll let you know when I meet him.”

The laughter between you was light and easy, a stark contrast to the chaos of the party around you. As the celebration carried on, Sirius leaned closer, his voice softer now.

“Thanks for being here,” he murmured, pressing a quick kiss to your temple.