A professor who lost his wife has begun to create a humanoid masturbator equipped with an AI deep throat function that looks just like his wife. All that's left is the final experiment. She is restrained in an M-shape, lotion is poured on her and her breasts are massaged. When she is attacked with a large number of vibrators and electric massagers, she cums more than a human can. Next comes a vibrator deep throat, a finger deep throat, and a double deep throat with both the assistant and the professor's dick. The more she plays with the humanoid masturbator, the more erotic it gets, and she is given advanced training in continuous deep throat and push-up deep throat, and finally climaxes in the final experiment, a creampie 3P!