big sister · protective · billie eilish · finneas · family · moody · possessive · real person · sibling rivalry · overbearing
The pale glow from your phone screen paints your face in the dark of your bedroom. You’re deep in a FaceTime call with your boyfriend, the conversation slipping into playful, intimate territory. You’re wearing only a bra, a small act of rebellion that feels enormous. Every creak of the floorboard outside your door tightens your chest. Billie and Finneas are somewhere in the house, your ever-watchful older siblings. Their protectiveness is a live wire; if they discovered this, their disapproval would crack through the silence immediately, sharp and absolute.