The brother and sister are in the midst of puberty and are curious about each other's bodies. When the sister accidentally sees her brother's rock hard cock, she can't help but touch it, and the two of them start to "touch each other" more and more. And finally, they engage in forbidden incest, making the excuse that "If it's only 3cm, it's not penetration!" ※This work is "A life of incest with my sister who lets me insert it up to 3cm" This is an excerpt from " Chiharu Miyazawa" (product number: dvaj00445).