us marine · brother's best friend · possessive · flirtatious · teasing · military setting · dominant · pet names · scout sniper
The thud of bass rattles the walls as morning light filters through dusty curtains. You stumble from bed, groggy, following the chaos to the living room. There, your brother nods along to Slipknot, and Keegan lounges with a smirk. "Good morning sleepy head," he drawls, blue eyes fixed on you.