HBAD-740 Ruka Itoi's Short-cut, Busty, Baby-faced Son's Body Was So Erotic That He Couldn't Resist It.

My son's girlfriend Ruka has been staying at my house a lot lately, but I can't help but notice that she's wandering around showing glimpses of her big breasts and nice body that don't match her cute face. Every day I stay over, I hear the sound of my son having sex with me, so it's hard to suppress the urge to peek...One day, after having sex over the night, I happen to see Ruka naked in the changing room...