KTRA-516 — My Sister Does Whatever I Say, So I Taught Her About Sex. Minori Mashiro

A sex lesson begins for the cute little sister who loves her big brother and listens to everything he says! He does perverted acts to the innocent little sister who entrusts her body to her big brother without any questions... The brother's sexual acts escalate day by day, and the little sister becomes more and more lewd in response! She can't stop, she can't stop! A sweet brother-sister incest story!