"I'll take your place, Dad," her son said, embracing Eriko timidly. While Eriko was happy that her only son had grown up to be such a strong, fine man, she couldn't help but feel shaken. She had led him astray. Eriko was tormented by intense regret and guilt. But then, a pleasure she had never tasted before hit her. Her son's stiff cock, which never went soft no matter how many times he came, made Eriko melt...