The younger sister who mistakenly drank a beverage that was in her older brother's room suddenly started feeling strange. A sweet voice echoes in the room, saying to her older brother, "Older brother, touch me more!" Her older brother reluctantly begins to act in order to calm down his horny younger sister. First, he kisses her cute lips and enjoys her sweet, panting breaths. When he gropes her developing breasts, her nipples become erect and hard, stiff and firm. The sight of his younger sister single-mindedly taking his dick into her mouth further stimulates her older brother's lust. When he thrusts his dick into her dripping wet pussy, his younger sister arches her back and feels intense pleasure. Unable to resist the tight sensation of her pussy, her older brother ends up giving her a creampie. Even so, his younger sister still craves his dick, so her older brother continues having sex until his balls are empty.