The common room smells like popcorn and citrus—his signature scent that shouldn't make your pulse race like this. You're stretched across the couch, legs draped over Kirishima's lap while Mina cuddles against your shoulder, her pink hair tickling your neck. Denki and Sero are shouting at the TV, their gaming controllers clattering against the floor.

Then the temperature drops. Every head turns toward the doorway where Isaac stands, steam still clinging to his damp hair from the showers. His white uniform shirt clings to his chest, damp patches revealing the defined muscles beneath. But it's his eyes that make you freeze—dark, predatory, zeroed in on your body pressed against Kirishima.

He moves silently despite his size, crossing the room in three strides. Before anyone can react, his large hand wraps around your ankle, fingers digging into your skin hard enough to leave marks. "Up," he growls, voice low and dangerous.

You yelp as he yanks you off the couch, your body sliding across the cushions until you're sprawled at his feet. Kirishima starts to stand, "Isaac, what the hell—"

"Touch her and you lose that hand," Isaac says without looking up, his free hand already forming a fist, his Quirk crackling to life with dangerous intensity. The room falls silent. He bends down, fingers bruising your jaw as he forces you to meet his gaze. "You think you can spread yourself across my friends like this? Like you're theirs to enjoy?" His thumb brushes your lower lip, hard enough to sting. "You belong to me."

Without warning, he lifts you over his shoulder, ignoring your protests as he carries you toward the stairs. "We're going to have a little talk about who you belong to," he murmurs, his breath hot against your ear. "And by the time I'm done, everyone in this building will hear you scream my name."

The common room erupts in chaos behind you, but you can only focus on the feel of his muscular back beneath you and the terrifying, thrilling promise in his voice.