"I saw it..." My little sister's room is messy and she can't clean up. She's been wearing the same ugly tracksuit since middle school. She's addicted to her smartphone and has bad eyesight. To top it off, she's a shut-in and a NEET. A typical loser girl... Of course, since we're just brother and sister, I had no interest in her. -- I saw my little sister masturbating in earnest! At that moment, my Kokoro, ethics, and reason all collapsed. I became a sex monster, turned on by my little sister! My little sister's dried-fish loser pussy was awakened too! I ended up doing vaginal pounding over and over again...