MIDA-150 _Offering my sister to the bully to fuck right in front of me

Yuzuru's parents passed away when he was young, and Nao alone raised him until today. Ms. Nao is very beautiful, gentle, and always loves her little brother. The more Yuzuru felt like that, the more guilty he was... giving his sister to the bully to fuck her! During the past 5 years, Yuzuru was bullied but could not fight back. To protect herself, Yuzuru agreed to put sleeping pills in Nao's tea, then opened the door for the bully to come in and fuck her sister! During these 5 years, the bully ejaculated and left, leaving Yuzuru to clean up the "battlefield", leaving Nao unaware of what had happened. But today, while wiping Nao's body, Yuzuru discovered that her pussy was filled with sperm! When he put his finger in to pull out that sperm, Nao's moans made Yuzuru lose his reason. Even though he knew he was a bastard and did terrible things to the sister who always loved him, Yuzuru couldn't control himself...