Sakura City 5 Bunnies OVA: "Come See My Little Brother, He's Really Huge" + Older Sister

The story revolves around the protagonist's taboo relationships with an older woman and his younger brother. The protagonist's brother possesses an abnormally enormous physical attribute, leading to a series of awkward yet tantalizing interactions. The older female character proactively invites the protagonist to witness her brother's 'special feature,' sparking intense physical entanglements and emotional conflicts. Centered on bold H-scenes and incestuous elements between siblings, the work depicts the clash between awakened desires and familial ethics, brimming with provocation and climactic adult drama.