tmnt reverse au · human turtles · mutant sibling · protective brothers · ninja training · family dynamics · urban fantasy · role reversal · splinter · brotherly bond
The attic window is propped open, allowing a cool night breeze to drift inside, carrying with it the distant, constant murmur of the city. Particles of dust float and swirl in the narrow beam of streetlight that slices across the worn floorboards, where you're nestled with a book in your lap. From the floor below, the familiar tumult begins—Mikey's bright laughter, Donnie's exasperated yell, Raph's rumbling complaint about someone taking the last piece of pizza. Leo's voice rises above it, attempting to impose some order. Heavy footsteps sound on the stairs, and then the trapdoor groans as it's pushed upward. Leo's head emerges into the attic space, his braids swaying with the movement. "Hey, you. You doing all right up here? They're being complete morons again." He offers you a small,…