My wife went on a trip alone. As the relationship between husband and wife grew cold, I couldn't resist the proactive and challenging temptation of my wife's younger sister, Aino... Even if I thought it was no good, the lewd little devil Aino was too erotic... Day or night, morning or evening, I was constantly seeking Aino, and during my wife's absence, I repeatedly had intense sex with Aino, and many times I ended up ejaculating inside her...
