"Big brother, let's do something like the adult video we saw yesterday~♪" What!?! I can't believe it... My little sister wanted to watch an adult video, so I thought I'd just "watch" with her out of curiosity... But she was more fascinated than I expected, and she gradually became excited, wanting to put my dick in her young pussy just like in the adult video!! We had sex many times without mom knowing, and when she found out, it had escalated even further! "Big brother... cum inside me...!!" Even though he knew it was wrong, he got addicted to creampie sex with his little sister and did it all the time at home and at school!!!