It's good that I went to my new girlfriend's house to hang out, but she lives with her sister. When I first met her sister, I thought an angel had descended — the ultimate visual little sister. But... completely opposite to my girlfriend, she revealed her true cock-loving pubescent J-type nature and became a no-bra little devil who seduces with her breasts at full power. Even though my girlfriend is right next to us... is this kind of trial even fair!?