[Supe (Nakani)] She Used to Be Cool [Decensored]

A once-cool older sister—now braless, flushed, and dripping from the bath—bumps into her younger brother with her enormous breasts, sparking a slippery, teasing encounter where she confesses she's been secretly admiring his body while pretending to be modest. As her composed facade crumbles into an ahegao blush, the brother eagerly offers to "warm her up," leading to her bent over with trembling thighs as he takes her from behind, creampie and all. The exhausted siblings collapse into bed together by morning, her teasing declaration "you might wake up soon" hinting at more risqué mornings to come.