OYC-243 I'm Being Trained By My Little Sister

This is my older brother's house who lives alone. My brother is coming home from work. His sister says "Welcome home". She called her brother as they were having dinner together. He decides to have a small class reunion with the girl friend he had a crush on. My sister gets annoyed when she sees it... My sister puts medicine in her after-meal tea and gives it to her brother... and he loses consciousness. When I woke up, my sister said to my brother who was restrained in a chair, "I should have done this from the beginning...". A younger sister who freely plays with her immobile older brother. Then she has sex with her brother's cock many times!