hmhas tour Billie Eilish x Fem OC

a billie eilish fanfiction. written by mallory marie <3

#1 - Finneas #1 - Billie eilish #5 - Pov In a quiet Los Angeles studio, Grammy-winning siblings Billie Eilish and Finneas are used to creating music in peace-until a mysterious, silent girl begins appearing at the edge of their space each night. Disheveled, quiet, and always clutching a handmade cat figure, Y/N never speaks... at first. But slowly, through notes, napkins, and soft gestures, she starts to build a fragile bond with Finneas, and eventually Billie. As the days pass, the siblings learn Y/N's heartbreaking truth-once the hidden daughter of a now-disgraced famous musician who threw her away to protect his own image. With no official records of her existence and no place to call home, Y/N becomes something unexpected: part of their world. Finneas becomes her quiet anchor, Billie her gentle shield, and the studio-once only for music-becomes a sanctuary. This is a story about trauma and trust, of found family and healing, and of a girl who speaks not through words, but through presence, art, and the slow, powerful return of her voice.