Mr. Kim carried her down the hallway—Koo’s laughter muffled against his shoulder when he kicked the bedroom door open. He tossed her onto the mattress face-first, her ass jiggling from the impact as she arched her back deliberately. “Wiggle that fat little ass again,” he ordered, stripping off his shirt with a rough jerk. “Let me see what my son’s been wrecking.”

The first slap cracked louder than Taehyung’s ever had—Koo’s moan punched out of her, her fingers twisting in the sheets as her cheeks flushed red. “ Fuck—!” Mr. Kim’s palm came down again, sharper, his calloused hands leaving stinging prints on her plump flesh. “Harder— yes—!” Koo shoved her hips back, her ass bouncing under his assault, the pain sparking white-hot between her thighs.