``The first time, for some reason, I was shackled (lol)'' Yukino, who has a beautiful slender body, screams and shakes her hips over and over again, rushing into an unstoppable orgasm! ! A timer electric massager series in which a penis-shaped attachment is inserted into an electric massager, fixed in place, shackled, and continues to provide random stimulation non-stop. Also includes a bonus video of ``electric massager masturbation immediately after the challenge (wearing an ultra-thin leotard)''.