[Cinnamon Tou] How to Discipline a Busty Faphole ~Diligent but Perverted Girlfriend's Sister~ [ADTL]

A diligent yet perverted schoolgirl sister, KONOMI, flaunts her massive breasts in a sailor uniform while scheming to discipline her boyfriend's eager lover. She teases with a rubber device, provoking gasps and desperate pleas as she balances teasing dominance with reluctant surrender. The story builds a seductive tension that promises a raw, intimate climax between the busty sister and the lone male.