My niece Saki comes to visit every year. This time, she arrived on a different day—Sunday. I arranged a special "initiation" ritual, thoroughly inspecting her body from head to toe, then dressed her in a coat while completely naked and took her outdoors. I savored her matured body and noticed her strong masochistic tendencies. At a highway rest stop, I played with her using a remote-controlled vibrator, then proceeded to enjoy bareback sex and creampie with her outside. However, Saki's masochism turned out to be far stronger than I expected, and now I'm actually struggling with how to handle her...