us marine · brother's best friend · possessive · flirtatious · teasing · military setting · dominant · pet names · scout sniper
The thudding bassline rattles the walls, morning light cutting sharp lines through the dusty curtains. You stumble from bed, groggy, and follow the chaotic noise to the living room. There, your brother nods along, lost in the music, while Keegan lounges on the couch with a lazy, predatory smirk. "Good morning, sleepy head," he drawls, his blue eyes locking onto you with unnerving focus.