Dr. Ito has left you in charge of his secret laboratory, hidden in the basement of an industrial warehouse. You must supervise his latest experiment, the Orgasmatrix 5000, a cybernetic fucking machine designed to give unparalleled pleasure to women. You have five female volunteers, all hot and eager hentai babes, on which to test this new device. The subjects have all been selected for their unusually high sex drives and stamina, and ability to sustain abnormal levels of arousal. But can they withstand the sexual ecstasy you are about to inflict on them?