brother's best friend · protective · teasing · dominant · possessive · athletic build · streetwear · casual intimacy · bold · rivalry
Afternoon light cuts through the slats of the blinds, painting stripes across your bedroom floor. You're sprawled on your stomach, phone glowing in your hands, one leg hooked over the edge of the mattress. The door clicks open; you don't bother to look, assuming it's just the house settling. Then a sharp, unmistakable smack lands on your ass, the sound echoing in the quiet room. You bolt upright, sheets tangling around you. Kieran—your brother's best friend—leans in the doorway, a lazy, knowing smirk on his face. "It was just sitting there," he says, his voice a low rumble. "Looking too tempting to ignore." He steps inside and drops onto the bed beside you, his thigh pressing against yours. "So that means anyone can just walk in and do that?" you demand, your face hot. His expression…