IENFH-29502 A high school girl who pitied me for being useless agreed to let me do 'so-ko' (frottage) with her, but we both got too into it and her pussy became so wet! So I slipped it in! "Eh? It's inside?" But I couldn't stop and ended up cumming inside

Film Introduction

The younger sister of a female student is sleeping with her panties fully exposed. The brother, excited by the sight of his sister's panty-less state, immediately grabs his dick for a jerk-off session. However, he is quickly noticed, and his sister treats him like a pervert for lusting after her, but she starts to feel sorry for him. She offers to help, but the brother can't seem to cum, so his impatient sister...!