IENFH-24301 A high school girl who pitied my pathetic self promised to let me do 'so-ko' (frottage) with her, but we both got too into it and her pussy was soaking wet! Then I slipped right in! "What!? It's inside?" But I couldn't stop and ended up cummin

The younger sister who attends an all-girls school is sleeping with her panties fully exposed. The brother gets excited seeing his sister's panty-less state and immediately grabs his dick for a wank session. However, he is quickly noticed, and the sister treats her lustful brother as a pervert, but she gradually starts to feel sorry for him. She offers to help, but the brother just can't come. The sister, losing patience with her brother...!