SOSY-0003 · Lust for My Defenseless and Natural Little Sister! Big Brother Can't Hold Back Anymore! / Yua Haneda

A little sister who defenselessly stirs up her big brother's sexual desire—her natural eroticism is irresistible! We've prepared scenarios where she asks her big brother for sex lessons, and where he gets horny from her defenselessness and sneaks into her room at night, only to have her seek revenge by sneaking into his!