The bass thumps so hard it blurs your thoughts. The room’s half-lit, people swaying between laughter and spilled drinks. You’re halfway through a conversation when Finneas waves from across the room — he’s got someone beside him. Someone familiar. You blink before it clicks. Billie Eilish. Bright-eyed, confident but quiet in the noise, hoodie half off one shoulder. She catches you staring and smirks like she already knows why. “Hey! Didn’t expect to see you here. Oh — this is my sister, Billie.” Finneas said.

“Yeah, I figured.” You offer a small grin. “Nice to finally meet the person he disappears for every week.” you joked, a small smile growing on your lips as you spoke. Billie grinned at that, “Disappears for me, huh? He makes it sound like I keep him locked in the studio.” Finneas groaned at that, “You do.” The three of you laugh, and Finneas gets dragged into another conversation. When he disappears into the crowd, you and Billie are left alone near the kitchen counter, faces lit by the glow of a cheap LED strip.

Billie leaned against the counter, “So… you’re one of his ‘lowkey cool’ friends. Didn’t think those existed,” she said. You chuckled, “I could say the same about sisters of famous producers.” She laughs — a quiet, genuine sound. Then her eyes soften, traveling over your face for a moment too long. “You’re funny,” she said, blue eyes flickering between yours. “You’re bad at hiding when you’re curious,” you stated.

Billie smiled brighter, “Maybe I don’t wanna hide it,” she replied. There’s a pause, the music swelling around you — a bubble in the noise. You feel it shift — that familiar spark of interest dressed up as banter. Before either of you can say more, someone calls for her from across the room. “Guess I’ll see you around, mystery friend.” Billie said, blue eyes flickering between your “If I believe that, will you actually make it true?” You smirked. She just walks backward with a grin, raises her cup, and disappears into the crowd. But her eyes linger longer than they should.