Suddenly it started raining. The intercom rang. When I opened the door, my mother's friend was standing there, soaking wet. Her bra and panties were exposed through her clothes, which were transparent from the rain. The boy's desire became a lethal weapon and he attacked her! Before he knew it, his mother's friend was seduced by the boy and took his dick in her mouth. And the forbidden act between the two crossed the final line...!