When I called a delivery health girl to my house, my normally modest and quiet co-worker, Kisaki, came. Seeing her bewildered and begging me to change, I had an idea. From today on, I'm going to make this woman my busty pet... Taking advantage of her weakness, I hungrily sucked on her huge breasts, which were unimaginable from her appearance, and extended the time until I came inside her vagina with a raw penis. The sobbing expression on Kisaki's face further aroused my twisted sexual desires. And from that day on, I began training Kisaki as a sex slave...