[Shishunki (Sugaru Shun)] Konoko ga, Kou!! [LSC Translation]

A restless boy returns home to find his bratty little stepsister Rui-chan sprawled on his bed, completely naked and shamelessly demanding sex. She teases him with crude taunts—"AHHH~ YOU'RE SO CUTE WHEN YOU'RE MAD, RUI-CHAN" and "I'M ABOUT TO CUM... I'M CUMMING~"—as he struggles to resist her aggressive, tomboyish advances. The petite, short-haired girl overwhelms him with confidence, declaring "YOU SHOULD BE MORE OBEDIENT, RUI-CHAN" while pinning him down, her flushed, slender body trembling as she takes control of the encounter.