When I see people who seem weaker than me... I want to attack them... I was so excited by my younger sister, my childish friend who couldn't say "stop it"...

Dad and mom, sorry... I ended up handing over my best friend's sister. Sorry for the worst son. ----It was the first time in a few years that I went to my best friend's house, but it was the first time in a while that I met my best friend's younger sister. Her name is Nanami-chan. She had become a female college student with even cuter and bigger breasts. While I was happy to be growing up, I also felt a bit aroused... If I push Nanami, who seems weak to push, I might be able to have sex...I felt that way... Ah... I want to attack. I want to attack... As I was thinking that, I saw a naked Nanami-chan right in front of me, and my cock was hooked. I see, did I lose my rationality? Had I become a sinner? No, it's bad that Nanami-chan doesn't resist strongly. I'm not bad. What's more, the more I fuck her, the more Nanami-chan begins to seek me. I'm not an unconsensual sexual intercourse, so I'm not a sinner. Yeah. I'm a sincere man.