IENF-395 A high school girl who pitied my useless self agreed to let me 'just rub' and do some dry humping. But we both felt too good, her pussy was soaked! I slipped in and she said, "What?! It's inside?" But I couldn't stop and ended up cumming inside!

The younger sister who goes to 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 jerk-off session. However, he is quickly noticed, and the sister treats her lustful brother as a pervert, but she starts to feel sorry for him. I offered to help, but my brother just wouldn't go. My sister was getting impatient...!