Under the pretense of providing in-house treatment, the therapist arrives with a mysterious device pulled from his bag. Once activated, the machine envelops the women in strange vibrations, drawing out sweet moans of pleasure. Though they question whether this is truly therapy, the overwhelming sensation is impossible to resist. Exquisite vibrations stimulate their groins, building arousal until slick wetness pools and they cry out in ecstasy. Surprised by their own responses, they are driven by an uncontrollable urge—they simply can't stop now.