「Brother, you know I'm sleeping next to you, right...?」 Hearing a rather lewd voice, the sister woke up to find her brother watching an AV and masturbating!? "You can't look! You have to go back to sleep soon!" she thought, but every time she thought that, her groin throbbed with the lewd sounds! Trying to masturbate secretly so as not to be noticed by her brother, the brother who had not ejaculated in the AV witnessed his sister's lustful state! Trying to pretend nothing happened and go back to sleep, but his heightened sexual desire could not be suppressed...
